Lincoln Aviator 2020-2024 Service Manual / Electrical / Instrumentation and Warning Systems / Instrumentation, Message Center and Warning Chimes / Diagnosis and Testing - Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD)

Lincoln Aviator: Instrumentation, Message Center and Warning Chimes / Diagnosis and Testing - Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD)

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Diagnostic Trouble Code Chart

Module	DTC	Description	Action
HUD	U0100:00	Lost Communication With ECM/PCM "A":No Sub Type Information	GO to Pinpoint Test J
HUD	U0140:00	Lost Communication With Body Control Module:No Sub Type Information	GO to Pinpoint Test K
HUD	U0164:00	Lost Communication With HVAC Control Module:No Sub Type Information	GO to Pinpoint Test M
HUD	U0208:00	Lost Communication With "Seat Control Module A":No Sub Type Information	GO to Pinpoint Test N
HUD	U0212:00	Lost Communication With Steering Column Control Module:No Sub Type Information	GO to Pinpoint Test O
HUD	U0232:00	Lost Communication With Side Obstacle Detection Control Module "A":No Sub Type Information	GO to Pinpoint Test P
HUD	U0233:00	Lost Communication With Side Obstacle Detection Control Module "B":No Sub Type Information	GO to Pinpoint Test P
HUD	U0238:00	Lost Communication With Digital Audio Control Module "D":No Sub Type Information	GO to Pinpoint Test Q
HUD	U023A:00	Lost Communication With Image Processing Module A:No Sub Type Information	GO to Pinpoint Test R
HUD	U0401:00	Invalid Data Received from ECM/PCM A:No Sub Type Information	GO to Pinpoint Test J
HUD	U0401:81	Invalid Data Received from ECM/PCM A:Invalid Serial Data Received	GO to Pinpoint Test J
HUD	U0401:82	Invalid Data Received from ECM/PCM A:Alive/Sequence Counter Incorrect/Not Updated	GO to Pinpoint Test J
HUD	U0405:56	Invalid Data Received From Cruise Control Module:Invalid/Incompatible Configuration	GO to Pinpoint Test S
HUD	U0424:00	Invalid Data Received From HVAC Control Module:No Sub Type Information	GO to Pinpoint Test M
HUD	U0424:81	Invalid Data Received From HVAC Control Module:Invalid Serial Data Received	GO to Pinpoint Test M
HUD	U0424:82	Invalid Data Received From HVAC Control Module:Alive/Sequence Counter Incorrect/Not Updated	GO to Pinpoint Test M
HUD	U0429:00	Invalid Data Received From Steering Column Control Module:No Sub Type Information	GO to Pinpoint Test O
HUD	U0429:82	Invalid Data Received From Steering Column Control Module:Alive/Sequence Counter Incorrect/Not Updated	GO to Pinpoint Test O
HUD	U0431:00	Invalid Data Received From Body Control Module "A":No Sub Type Information	GO to Pinpoint Test K
HUD	U0509:82	Invalid Data Received From "Seat Control Module A":Alive/Sequence Counter Incorrect/Not Updated	GO to Pinpoint Test N
HUD	U2100:00	Initial Configuration Not Complete:No Sub Type Information	GO to Pinpoint Test T
HUD	U2300:55	Central Configuration:Not Configured	GO to Pinpoint Test S
HUD	U3000:04	Control Module:System Internal Failures	GO to Pinpoint Test U
HUD	U3000:41	Control Module:General Checksum Failure	GO to Pinpoint Test U
HUD	U3000:42	Control Module:General Memory Failure	GO to Pinpoint Test U
HUD	U3000:47	Control Module:Watchdog/Safety µC Failure	GO to Pinpoint Test U
HUD	U3000:49	Control Module:Internal Electronic Failure	GO to Pinpoint Test U
HUD	U3001:98	Control Module Improper Shutdown Performance:Component Or System Over Temperature	GO to Pinpoint Test V
HUD	U3003:16	Battery Voltage:Circuit Voltage Below Threshold	GO to Pinpoint Test X
HUD	U3003:17	Battery Voltage:Circuit Voltage Above Threshold	GO to Pinpoint Test Y
HUD	U300A:64	Ignition Switch:Signal Plausibility Failure	GO to Pinpoint Test W

Symptom Chart

Symptom Chart: HUD

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Symptom Chart

Condition	Possible Sources	Actions
The HUD is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test A
The HUD setup menu does not display in the IPC or cannot be navigated	Message center concern HUD module	VERIFY the message center functions correctly using the RH steering wheel switch. If the message center does not function correctly using the RH steering wheel switch, DIAGNOSE the message center menu does not display or cannot be navigated. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing). If the message center does function correctly using the RH steering wheel switch, GO to Pinpoint Test A
The HUD illumination does not increase or decrease	Refer to the Pinpoint Test	GO to Pinpoint Test B
The HUD does not display clearly, is distorted or cut off on the windshield	HUD not calibrated	PERFORM the HUD calibration. REFER to: Head Up Display (HUD) Module Calibration (419-03C Collision Warning and Collision Avoidance System, General Procedures).
The BLIS/ CTA indication does not display	Refer to the Pinpoint Test	GO to Pinpoint Test C
The DTE-low fuel indication, digital speedometer or clock display is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test D
The Electric Vehicle (EV) drive range display is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test E
An infotainment menu (audio, navigation or phone) does not display or cannot be navigated	IPC infotainment menu concern	REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information, Diagnosis and Testing).
The outside air temperature display is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test F
The LH- RH turn/hazard signal display is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The adaptive cruise control, lane keeping system, distance indication, lane centering assist or speed sign display (part of the active driver assist system) is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test H
The transmission gear display indication is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The unit or language selection cannot be changed	Refer to the Pinpoint Test	VERIFY the units or language selections can be changed in the IPC. If the units or language selections cannot be changed in the IPC, DIAGNOSE the message center menu does not display or cannot be navigated. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing). If the units or language selections can be changed in the IPC, INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

Pinpoint Tests

PINPOINT TEST A : THE HUD (HEAD UP DISPLAY) IS INOPERATIVE

Normal Operation and Fault Conditions

See HUD Module component description. REFER to: Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

The HUD receives a hot at all times voltage from the BCM. The HUD receives the ignition status message for the RUN/START or ACC input from the BCM through the GWM over the HS-CAN3.

Possible Sources

Fuse
Communication concern
RH upper steering wheel switch
HUD calibration
GWM concern
SCCM concern
IPC concern
HUD module

Visual Inspection and Pre-checks

Verify the BCM fuse 29 (15A) is OK.

A1 CHECK THE RH (RIGHT-HAND) UPPER STEERING WHEEL SWITCH SETTINGS BUTTON OPERATION

Ignition ON.

Press the RH upper steering wheel switch menu button.

Does the message center menu display in the IPC?

Yes

GO to A2

No	DIAGNOSE the message center menu does not display. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

A2 CHECK THE HUD (HEAD UP DISPLAY) OPERATION

Using the RH upper steering wheel switch, select the HUD on.

Does the HUD appear on the windshield?

Yes

GO to A3

GO to A6

A3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to A4

A4 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

Using a diagnostic scan tool, perform the IPC self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: IPC in this section.

GO to A5

A5 PERFORM THE SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the SCCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

GO to A6

A6 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to A7

A7 PERFORM THE HUD (HEAD UP DISPLAY) MODULE CALIBRATION

Perform the HUD module calibration.
REFER to: Head Up Display (HUD) Module Calibration (419-03C Collision Warning and Collision Avoidance System, General Procedures).

Test the HUD operation.

Did the calibration correct the inoperative HUD display?

Yes

The system is operating correctly. The concern was caused by the HUD being out of calibration.

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST B : THE HUD (HEAD UP DISPLAY) ILLUMINATION DOES NOT INCREASE OR DECREASE

Normal Operation and Fault Conditions

See HUD/Brightness Controls description. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

If the ambient light sensor status or ambient light sensor data messages are missing for longer than 3 seconds and the day/night status message indicates daytime brightness, the HUD defaults the brightness to the daytime level. If the ambient light sensor status or ambient light sensor data messages are missing for longer than 3 seconds and the day/night status message indicates nighttime brightness, the HUD defaults the brightness to the nighttime level.

Possible Sources

Communication concern
Instrument panel illumination (backlighting) concern
Message center concern
BCM concern
GWM concern
SCCM concern
HUD module

B1 CHECK THE RH (RIGHT-HAND) UPPER STEERING WHEEL SWITCH BUTTON OPERATION

Press the RH steering wheel switch settings button to display the message center menu.

Navigate the message center menu up and down then select a menu item to change and press the OK button.

Does the RH upper steering wheel switch operate correctly to navigate and select menu items?

Yes

GO to B2

No	DIAGNOSE the message center menu does not navigate correctly. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

B2 CHECK THE INSTRUMENT PANEL ILLUMINATION OPERATION

Turn the parking lamps on.

Press the dimmer switch down to the lowest setting then press the switch up to the highest setting while observing the instrument panel illumination.

Does the instrument panel illumination change intensity when moving from the lowest setting to the highest setting?

Yes

GO to B3

No	DIAGNOSE the instrument panel illumination. REFER to: Instrument Panel and Interior Switches Illumination (413-00 Instrument Panel and Interior Switches Illumination, Diagnosis and Testing).

B3 PERFORM THE NETWORK TEST FOR ALL MODULES

Using a diagnostic scan tool, perform a network test.

Do all equipped modules pass the network test?

Yes

GO to B4

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

B4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to B5

B5 CHECK THE BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the BCM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to B6

B6 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

Using a diagnostic scan tool, perform the IPC self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to the DTC Chart: IPC.
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

GO to B7

B7 PERFORM THE SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the SCCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

GO to B8

B8 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST C : THE BLIS (BLIND SPOT INFORMATION SYSTEM) / CTA (CROSS TRAFFIC ALERT) INDICATION DOES NOT DISPLAY

Normal Operation and Fault Conditions

See BLIS/ CTA. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
SODL concern
SODR concern
HUD module

C1 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Ignition ON.

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to C2

C2 PERFORM THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) SELF-TESTS

Using a diagnostic scan tool, perform the SODL and SODR self-tests.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).

GO to C3

C3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	DIAGNOSE the Blind Spot Information System (BLIS). REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).

PINPOINT TEST D : THE DTE (DISTANCE TO EMPTY) -LOW FUEL INDICATION, VEHICLE SPEED, CLOCK OR OUTSIDE AIR TEMPERATURE DISPLAY IS INOPERATIVE

Normal Operation and Fault Conditions

See DTE-Low Fuel Indication, Digital Speedometer, or Clock. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
IPC concern
HUD display settings
HUD module

D1 CHECK THE DTE (DISTANCE TO EMPTY) -LOW FUEL INDICATION, VEHICLE SPEED, OR CLOCK DISPLAY IN THE IPC (INSTRUMENT PANEL CLUSTER)

Ignition ON.

Verify the DTE-low fuel indication, digital speedometer or clock feature operates correctly in the IPC.

Does the inoperative feature operate correctly in the IPC?

Yes

For the DTE-low fuel, clock and outside air temperature display, GO to D2
For all other displays, GO to D3

No	DIAGNOSE the inoperative display in the IPC. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

D2 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

Using the RH upper steering wheel switch, select the HUD setup.

Verify the DTE-low fuel, clock and outside air temperature display is set to on.

Is the DTE-low fuel, clock and outside air temperature display is set to on?

Yes

GO to D3

If the HUD can be set to display the DTE-low fuel, clock and outside air temperature, the HUD is operating correctly at this time. The HUD was not set to display the DTE-low fuel, clock and outside air temperature.
If the HUD cannot be set to display the DTE-low fuel, clock and outside air temperature, GO to Pinpoint Test A.

D3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to D4

D4 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

Ignition ON.

Using a diagnostic scan tool, perform the IPC self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to the DTC Chart: IPC.
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST E : THE ELECTRIC VEHICLE (EV) DRIVE RANGE DISPLAY IS INOPERATIVE

Normal Operation and Fault Conditions

See Electric Vehicle (EV) Drive Range. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
PCM concern
HUD display settings
HUD module

E1 CHECK THE ELECTRIC VEHICLE (EV) DRIVE RANGE DISPLAY IN THE IPC (INSTRUMENT PANEL CLUSTER)

Ignition ON.

Verify the Electric Vehicle (EV) drive range display feature operates correctly in the IPC.

Does the inoperative feature operate correctly in the IPC?

Yes

GO to E2

No	DIAGNOSE the inoperative display in the IPC. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

E2 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

Using the RH upper steering wheel switch, select the HUD setup.

Verify the DTE-low fuel and Electric Vehicle (EV) drive range display is set to on.

Is the DTE-low fuel and Electric Vehicle (EV) drive range display set to on?

Yes

GO to E3

If the HUD can be set to display the DTE-low fuel and Electric Vehicle (EV) drive range, the HUD is operating correctly at this time. The HUD was not set to display the DTE-low fuel and Electric Vehicle (EV) drive range.
If the HUD cannot be set to display the DTE-low fuel and Electric Vehicle (EV) drive range, GO to Pinpoint Test A.

E3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to E4

E4 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Ignition ON.

Using a diagnostic scan tool, perform the PCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls) .

GO to E5

E5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST F : THE OUTSIDE AIR TEMPERATURE DISPLAY IS INOPERATIVE

Normal Operation and Fault Conditions

See Outside Air Temperature. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
HVAC module concern
HUD display settings
HUD module

F1 CHECK THE OUTSIDE AIR TEMPERATURE DISPLAY IN THE IPC (INSTRUMENT PANEL CLUSTER)

Ignition ON.

Verify the outside air temperature display feature operates correctly in the IPC.

Does the inoperative feature operate correctly in the IPC?

Yes

GO to F2

No	DIAGNOSE the inoperative display in the IPC. REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

F2 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

Using the RH upper steering wheel switch, select the HUD setup.

Verify the outside air temperature display is set to on.

Is the outside air temperature display set to on?

Yes

GO to F3

No	If the HUD can be set to display the outside air temperature, the HUD is operating correctly at this time. The HUD was not set to display the outside air temperature. If the HUD cannot be set to display the outside air temperature, GO to Pinpoint Test A.

F3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to F4

F4 PERFORM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST

Ignition ON.

Using a diagnostic scan tool, perform the HVAC module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).

GO to F5

F5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST G : THE LH (LEFT-HAND) - RH (RIGHT-HAND) TURN/HAZARD SIGNAL DISPLAY IS INOPERATIVE

Normal Operation and Fault Conditions

See LH And RH Turn Signal. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
BCM concern
GWM concern
HUD module

G1 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST

Ignition ON.

Using a diagnostic scan tool, perform the BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to G2

G2 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to G3

G3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST H : THE ADAPTIVE CRUISE CONTROL, LANE KEEPING SYSTEM, DISTANCE INDICATION, LANE CENTERING ASSIST OR SPEED SIGN DISPLAY (PART OF THE ACTIVE DRIVER ASSIST SYSTEM) IS INOPERATIVE

Normal Operation and Fault Conditions

REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
IPMA concern
GWM concern
HUD module

H1 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

Using the RH upper steering wheel switch, select the HUD setup.

Verify the adaptive cruise control, lane keeping system, distance indication, lane centering assist or speed sign display is set to on.

Is the inoperative display set to on?

Yes

GO to H2

No	If the HUD can be set to display any of the active driver assist features, the HUD is operating correctly at this time. The HUD was not set to display the active driver assist features. If the HUD cannot be set to display any of the active driver assist features, GO to Pinpoint Test A.

H2 PERFORM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST

Using a diagnostic scan tool, perform the IPMA self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Lane Keeping System (419-07 Lane Keeping System, Diagnosis and Testing).

GO to H3

H3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to H4

H4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST I : THE TRANSMISSION GEAR DISPLAY INDICATION IS INOPERATIVE

Normal Operation and Fault Conditions

See Transmission Gear Display. REFER to: Head Up Display (HUD) - System Operation and Component Description (413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).

Possible Sources

Communication concern
PCM concern
GWM concern
HUD module

I1 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON, ENGINE OFF) SELF-TEST

Ignition ON.

Using a diagnostic scan tool, perform the PCM KOEO self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls) .

GO to I2

I2 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to I3

I3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST J : U0100:00, U0401:00, U0401:81 OR U0401:82

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0100:00	Lost Communication With ECM/PCM "A": No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the PCM through the GWM are missing for 5 seconds or longer.
HUD U0401:00	Invalid Data Received from ECM/PCM A: No Sub Type Information	Sets in continuous memory when the HUD module receives invalid cruise control network data from the PCM through the GWM for 5 seconds or longer.
HUD U0401:81	Invalid Data Received from ECM/PCM A: Invalid Serial Data Received	Sets in continuous memory when the HUD module receives invalid network data for speedometer or EV drive range from the PCM through the GWM for 5 seconds or longer.
HUD U0401:82	Invalid Data Received from ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated	Sets in continuous memory when the HUD module fails to receive updated cruise control data from the PCM through the GWM.

Possible Sources

Communication concern
GWM concern
PCM
HUD concern

J1 CHECK THE HUD (HEAD UP DISPLAY) MODULE CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

Ignition ON.

Using a diagnostic scan tool, perform the HUD module self-test.

Clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs). REFER to DTC Chart: HUD Module in this section.

GO to J2

J2 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON, ENGINE OFF) SELF-TEST

Using a diagnostic scan tool, perform the PCM KOEO self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs).
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls) .

GO to J3

J3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) set?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to J4

J4 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0100:00, U0401:00, U0401:81 or U0401:82 still present?

Yes

GO to J5

No	The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

J5 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the PCM, GWM or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to J6

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

J6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (PCM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST K : U0140:00 OR U0431:00

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the BCM through the GWM are missing for 5 seconds or longer.
HUD U0431:00	Invalid Data Received From Body Control Module "A": No Sub Type Information	Sets in continuous memory in the HUD module when the HUD module receives invalid dimming level data from the BCM through the GWM for 5 seconds or longer.

Possible Sources

Communication concern
GWM concern
BCM
HUD concern

K1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to K2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

K2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the BCM pass the network test?

Yes

GO to K3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

K3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to K4

K4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to K5

K5 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the BCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to K6

K6 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0140:00 or U0431:00 still present?

Yes

GO to K7

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

K7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the BCM, GWM or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to K8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

K8 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the BCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (BCM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST L : U0155:00

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the IPC are missing for 5 seconds or longer.

Possible Sources

Communication concern
IPC
HUD concern

L1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to L2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

L2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the IPC pass the network test?

Yes

GO to L3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

L3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to L4

L4 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

Using a diagnostic scan tool, perform the IPC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: IPC in this section.

GO to L5

L5 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0155:00 still present?

Yes

GO to L6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

L6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the IPC or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to L7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

L7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

Ignition OFF.

Disconnect and inspect the IPC connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPC connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (IPC).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST M : U0164:00, U0424:00, U0424:81 OR U0424:82

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0164:00	Lost Communication With HVAC Control Module: No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the HVAC module are missing for 5 seconds or longer.
HUD U0424:00	Invalid Data Received From HVAC Control Module: No Sub Type Information	Sets in continuous memory if outside air temperature data messages received from the HVAC module through the GWM are missing for 5 seconds or longer.
HUD U0424:81	Invalid Data Received From HVAC Control Module: Invalid Serial Data Received	Sets in continuous memory when the HUD module receives invalid outside air temperature data from the HVAC module through the GWM module.
HUD U0424:82	Invalid Data Received From HVAC Control Module: Alive/Sequence Counter Incorrect/Not Updated	Sets in continuous memory when the HUD module fails to receive updated outside air temperature data from the HVAC module through the GWM module.

Possible Sources

Communication concern
HVAC concern
GWM concern
HUD concern

M1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to M2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

M2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the HVAC module pass the network test?

Yes

GO to M3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

M3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD module in this section.

GO to M4

M4 PERFORM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HVAC module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).

GO to M5

M5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to M6

M6 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0184:00, U0424:00, U0424:81 or U0424:82 still present?

Yes

GO to M7

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

M7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the HUD module, GWM or ACM. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to M8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

M8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the HVAC module connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect all the HVAC module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST N : U0208:00 OR U0509:82

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0208:00	Lost Communication With "Seat Control Module A": No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the DSM through the GWM are missing for 5 seconds or longer.
HUD U0509:82	Invalid Data Received From "Seat Control Module A": Alive/Sequence Counter Incorrect/Not Updated	Sets in continuous memory in the HUD module when the HUD module fails to receive memory data from the DSM through the GWM.

Possible Sources

Communication concern
GWM concern
DSM
HUD concern

N1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to N2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

N2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the DSM pass the network test?

Yes

GO to N3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

N3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to N4

N4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to N5

N5 PERFORM THE DSM (DRIVER FRONT SEAT MODULE) SELF-TEST

Using a diagnostic scan tool, perform the DSM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

GO to N6

N6 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0208:00 or U0509:82 still present?

Yes

GO to N7

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

N7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the DSM, GWM or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to N8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

N8 CHECK FOR CORRECT DSM (DRIVER FRONT SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the audio DSM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the DSM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSM.
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST O : U0212:00, U0429:00 OR U0429:82

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0212:00	Lost Communication With Steering Column Control Module: No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the SCCM through the GWM are missing for 5 seconds or longer.
HUD U0429:00	Invalid Data Received From Steering Column Control Module: No Sub Type Information	Sets in continuous memory when the HUD module receives invalid ambient light data from the SCCM through the GWM for HUD brightness settings for 5 seconds or longer.
HUD U0429:82	Invalid Data Received From Steering Column Control Module: Alive/Sequence Counter Incorrect/Not Updated	Sets in continuous memory when the HUD module fails to receive updated network data for the driver selected illumination settings from the SCCM through the GWM.

Possible Sources

Communication concern
GWM concern
SCCM
HUD concern

O1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to O2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

O2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the SCCM pass the network test?

Yes

GO to O3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

O3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to O4

O4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to O5

O5 PERFORM THE SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the SCCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

GO to O6

O6 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0212:00, U0429:00 or U0429:82 still present?

Yes

GO to O7

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

O7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the SCCM, GWM or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to O8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

O8 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the SCCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM.
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST P : U0232:00, U0233:00

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0232:00	Lost Communication With Side Obstacle Detection Control Module "A": No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the SODL through the GWM are missing for 5 seconds or longer.
HUD U0233:00	Lost Communication With Side Obstacle Detection Control Module "B": No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the SODR through the GWM are missing for 5 seconds or longer.

Possible Sources

Communication concern
GWM concern
SODL
SODR
HUD concern

P1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to P2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

P2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the SODL or SODR pass the network test?

Yes

GO to P3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

P3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to P4

P4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to P5

P5 PERFORM THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) OR SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) SELF-TEST

Using a diagnostic scan tool, perform the SODL or SODR self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).

GO to P6

P6 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0232:00 or U0233:00 still present?

Yes

GO to P7

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

P7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the SODL, SODR, GWM or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to P8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

P8 CHECK FOR CORRECT SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) OR SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) OPERATION

Ignition OFF.

Disconnect and inspect the SODL or SODR connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the SODL or SODR connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODL or SODR.
REFER to: Side Obstacle Detection Control Module (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Q : U0238:00

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	Sets in continuous memory in the HUD module if audio volume data messages received from the audio DSP are missing for 5 seconds or longer.

Possible Sources

Communication concern
Audio DSP
HUD concern

Q1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to Q2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Q2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the audio DSP pass the network test?

Yes

GO to Q3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

Q3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD Module in this section.

GO to Q4

Q4 PERFORM THE AUDIO DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SELF-TEST

Using a diagnostic scan tool, perform the audio DSP self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information, Diagnosis and Testing).

GO to Q5

Q5 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U0238:00 still present?

Yes

GO to Q6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Q6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the audio DSP or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to Q7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Q7 CHECK FOR CORRECT AUDIO DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the audio DSP connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the audio DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new audio DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST R : U023A:00

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U023A:00	Lost Communication With Image Processing Module A: No Sub Type Information	Sets in continuous memory in the HUD module if data messages received from the IPMA through the GWM are missing for 5 seconds or longer.

Possible Sources

Communication concern
GWM concern
IPMA
HUD concern

R1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to R2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

R2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform the network test.

Does the IPMA pass the network test?

Yes

GO to R3

No	REFER to: Lane Keeping System (419-07 Lane Keeping System, Diagnosis and Testing).

R3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

Using a diagnostic scan tool, perform the HUD module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to DTC Chart: HUD module in this section.

GO to R4

R4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to R5

R5 PERFORM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST

Using a diagnostic scan tool, perform the IPMA self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Lane Keeping System (419-07 Lane Keeping System, Diagnosis and Testing).

GO to R6

R6 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the HUD module Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the HUD module Diagnostic Trouble Codes (DTCs).

Is DTC U023A:00 still present?

Yes

GO to R7

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

R7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the IPMA, GWM or HUD module. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to R8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

R8 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the IPMA connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPMA connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMA.
REFER to: Image Processing Module A (IPMA) (419-07 Lane Keeping System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST S : U0405:56 OR U2300:55

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U0405:56	Invalid Data Received From Cruise Control Module: Invalid/Incompatible Configuration	Sets in continuous memory if the HUD module receives invalid network data for adaptive cruise control and forward collision from the CCM through the IPMA and GWM.
HUD U2300:55	Central Configuration: Not Configured	Sets in continuous memory if the HUD module detects NVM global real time failure.

Possible Sources

HUD module

S1 CHECK VEHICLE HISTORY FOR RECENT SERVICE ACTIONS

Check the vehicle history for any recent service actions related to the HUD.

Have any service actions been performed?

Yes

REPEAT the PMI as directed by the diagnostic scan tool.

GO to S2

S2 RECONFIGURE THE MODULE

Using a diagnostic scan tool, perform the PMI as directed by the diagnostic scan tool.

Verify the adaptive cruise control feature can be activated and operates correctly.

Is the feature available and working correctly?

Yes

The system is operating correctly at this time. The concern may have been caused by incomplete or incorrect PMI procedure.

No	The HUD module fails to retain configuration data. INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST T : U2100:00

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets in the HUD module due to incomplete or incorrect PMI procedure.

Possible Sources

HUD module

T1 CHECK VEHICLE HISTORY FOR RECENT SERVICE ACTIONS

Check the vehicle history for any recent service actions related to the HUD.

Have any service actions been performed?

Yes

REPEAT the PMI as directed by the diagnostic scan tool.

GO to T2

T2 RECONFIGURE THE MODULE

Using a diagnostic scan tool, perform the PMI as directed by the diagnostic scan tool.

Verify the HUD function correctly?

Does the HUD function correctly?

Yes

The system is operating correctly at this time. The concern may have been caused by incomplete or incorrect PMI procedure.

No	The HUD module fails to retain configuration data. INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

PINPOINT TEST U : U3000:04, U3000:41, U3000:42, U3000:47 OR U3000:49

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U3000:04	Control Module: System Internal Failures	Sets when the HUD module detects and EEPROM failure.
HUD U3000:41	Control Module: General Checksum Failure	Sets in the HUD module when module memory fails.
HUD U3000:42	Control Module: General Memory Failure	Sets in the HUD module when module RAM hardware fails.
HUD U3000:47	Control Module: Watchdog/Safety µC Failure	Sets in the HUD module when an internal module failure is detected.
HUD U3000:49	Control Module: Internal Electronic Failure	Sets in the HUD module when an internal module failure is detected.

Possible Sources

HUD module

U1 RETRIEVE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Using a diagnostic scan tool, perform the HUD module self-test.

Is U3000:04, U3000:41, U3000:42, U3000:47 or U3000:49 recorded?

Yes

INSTALL a new HUD module.
REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

No	The system is operating correctly at this time.

PINPOINT TEST V : U3001:98

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U3001:98	Control Module Improper Shutdown Performance: Component Or System Over Temperature	Sets in continuous memory when the HUD module detects the Light Emitting Diodes (LEDs) are over-temperature.

Possible Sources

HUD module

V1 CLEAR THE DIAGNOSTIC TROUBLE CODES (DTCS)

Remove the vehicle from direct sunlight and allow the interior of the vehicle to cool.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Using a diagnostic scan tool, perform the HUD module self-test.

Is DTC U3001:98 still present?

Yes

INSTALL a new HUD module.
REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

No	TEST the system for normal operation.

PINPOINT TEST W : U300A:64

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U300A:64	Ignition Switch: Signal Plausibility Failure	Sets in continuous memory when the HUD module detects a messaged start input for 15 seconds or longer. Once the fault condition is detected, the HUD operates with limited functionality for 15 seconds then returns to full functionality.

Possible Sources

Ignition concern
Starting system concern
HUD module

W1 RETRIEVE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Using a diagnostic scan tool, perform the HUD module self-test.

Is U300A:64 recorded?

Yes

DIAGNOSE ignition concerns.
REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing). DIAGNOSE starting system concerns. REFER to the appropriate 303-06 section.

No	The system is operating correctly at this time.

PINPOINT TEST X : U3003:16

Refer to Wiring Diagrams Cell 60 for schematic and connector information.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in the HUD module in continuous memory if the HUD module detects battery voltage below 9 volts on the voltage supply circuit for 5 seconds or longer.

Possible Sources

Wiring, terminals or connectors
High circuit resistance
Charging system concern
HUD module

X1 RECHECK THE HUD (HEAD UP DISPLAY) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Using a diagnostic scan tool, perform the HUD module self-test.

Is DTC U3003:16 still present?

Yes

GO to X2

No	The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

X2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE BCM (BODY CONTROL MODULE)

Using a diagnostic scan tool, perform the BCM self-test.

Are any charging system Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to X3

X3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE

Check the battery condition and verify the battery is fully charged.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK and fully charged?

Yes

GO to X4

No	If the battery is discharged, DIAGNOSE the cause of the low battery condition. REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing). If the battery condition fails, INSTALL a new battery. REFER to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).

X4 CHECK THE HUD (HEAD UP DISPLAY) VOLTAGE PID (PARAMETER IDENTIFICATION)

Measure and record the voltage at the battery.

Using a diagnostic scan tool, view the HUD Parameter Identifications (PIDs).

Monitor the HUD voltage (VPWR) PID

Is the voltage within 0.2 volt of the recorded battery voltage?

Yes

GO to X7

GO to X5

X5 CHECK THE HUD (HEAD UP DISPLAY) MODULE VOLTAGE SUPPLY

Ignition OFF.

Disconnect HUD Module C2395 .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2395-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to X6

No	REPAIR the circuit for high circuit resistance.

X6 CHECK THE HUD (HEAD UP DISPLAY) MODULE GROUND

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2395-1 C2395-8

Is the voltage greater than 11 volts?

Yes

GO to X7

No	REPAIR the circuit for high circuit resistance.

X7 CHECK FOR CORRECT HUD (HEAD UP DISPLAY) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the HUD module connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the HUD module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HUD module.
REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Y : U3003:17

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
HUD U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in the HUD module in continuous memory if the HUD module detects battery voltage above 16 volts on the voltage supply circuit for 5 seconds or longer.

Possible Sources

Charging system concern
HUD module

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

Y1 CHECK FOR OVERCHARGING DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES

Ignition ON.

Using a diagnostic scan tool, perform self-test on all modules.

Retrieve the continuous memory DTCs from all modules.

Is any high voltage Diagnostic Trouble Codes (DTCs) set in more than one module?

Yes

DIAGNOSE the overcharging condition.
REFER to: Charging System (414-00 Charging System - General Information, Diagnosis and Testing).

GO to Y2

Y2 CHECK THE BATTERY VOLTAGE

Turn off all interior/exterior lights and accessories.

Start and run the engine at approximately 2,000 rpm for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?

Yes

DIAGNOSE the overcharging condition.
REFER to: Charging System (414-00 Charging System - General Information, Diagnosis and Testing).

GO to Y3

Y3 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U3003:17

Ignition OFF.

Ignition ON.

Using a diagnostic scan tool, clear the continuous memory DTCs.

Carry out the IPC self-test.

Is DTC U3003:17 present?

Yes

INSTALL a new HUD module.
REFER to: Head Up Display (HUD) Module (419-03C Collision Warning and Collision Avoidance System, Removal and Installation).

No	The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

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