Lincoln Aviator Manuals
Lincoln Aviator 2020-2023 Service Manual / Electrical / Instrumentation and Warning Systems / Parking Aid - Vehicles With: Active Park Assist / Diagnosis and Testing - Parking Aid

Lincoln Aviator: Parking Aid - Vehicles With: Active Park Assist / Diagnosis and Testing - Parking Aid

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
  IPMB B129C:08 Left Front Side Sensor: Bus Signal / Message Failure   GO to Pinpoint Test A
  IPMB B129C:96 Left Front Side Sensor: Component Internal Failure   GO to Pinpoint Test E
  IPMB B129C:98 Left Front Side Sensor: Component or System Over Temperature   GO to Pinpoint Test F
  IPMB B129D:08 Right Front Side Sensor: Bus Signal / Message Failure   GO to Pinpoint Test B
  IPMB B129D:96 Right Front Side Sensor: Component Internal Failure   GO to Pinpoint Test E
  IPMB B129D:98 Right Front Side Sensor: Component or System Over Temperature   GO to Pinpoint Test F
  IPMB B13F3:08 Left Rear Side Sensor: Bus Signal / Message Failure   GO to Pinpoint Test C
  IPMB B13F3:96 Left Rear Side Sensor: Component Internal Failure   GO to Pinpoint Test G
  IPMB B13F3:98 Left Rear Side Sensor: Component or System Over Temperature   GO to Pinpoint Test F
  IPMB B13F4:08 Right Rear Side Sensor: Bus Signal / Message Failure   GO to Pinpoint Test D
  IPMB B13F4:96 Right Rear Side Sensor: Component Internal Failure   GO to Pinpoint Test G
  IPMB B13F4:98 Right Rear Side Sensor: Component or System Over Temperature   GO to Pinpoint Test F

Symptom Chart(s)

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: Active Park Assist


Condition Possible Sources Actions
A module does not communicate with the diagnostic scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Module
 
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The active park assist system does not activate when the active park assist switch is pressed Refer to the Pinpoint Test   GO to Pinpoint Test H
The centerstack infotainment display and/or the IPC message center display shows an active park assist fault message Refer to the Pinpoint Test   GO to Pinpoint Test I
The centerstack infotainment display shows the active park assist not available message AdvanceTrac® was off when the system was activated
  • The active park assist system is not available if the AdvanceTrac® is off or if an ABS or AdvanceTrac® event is in progress when the system is being activated by the driver.
An ABS or AdvanceTrac® event was in progress when the system was activated
  • The battery was recently disconnected
  • The PSCM and/or the ABS module were recently reprogrammed
  • The vehicle is brand new from the manufacturing plant (and has not been driven above 50 km/h (30 mph) with minimal steering input for 30 seconds
The active park assist system is not available immediately after a battery disconnect or if the PSCM and/or the ABS module were recently reprogrammed. PERFORM the following: drive the vehicle straight on a flat/smooth road above 50 km/h (30 mph) with minimal driver steering input for 30 seconds. Abort this step at any time to maintain safe driving, and repeat the process if required. If completed correctly, active park assist will be available upon pressing the active park assist switch.
The active park assist system does not position the vehicle correctly
  • Active park assist sensor(s) locked into the bumper incorrectly
REMOVE and correctly INSTALL the active park assist sensor(s) as necessary.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Dirty or iced over active park assist sensor(s)
CLEAN the bumper covers and active park assist sensors with high-pressure water.
  • Active park assist sensors affected by a sudden change in ambient air temperature
The temperature of the air around the vehicle can change rapidly, such as the vehicle being driven into or out of a parking garage or car wash. As a result, the air temperature displayed in the vehicle may not be close enough to the actual ambient air temperature. The active park assist system relies on accurately sensing the ambient air temperature to compensate the sensors. No action is required.
  • The tires are not inflated to the correct pressure, the tires are not the same size or the tires are not the OE (original equipment) size.
INSPECT the tire condition, pressure and size. A considerably worn tire positions the vehicle far from the curb. A larger size tire positions the vehicle closer to the curb. REPAIR or REPLACE tire(s) as necessary.
  • The driver allowed the vehicle to roll in the opposite direction of the transmission, such as rolling forward when the reverse gear is selected
INFORM the customer not to allow the vehicle to roll in the opposite direction when operating the active park assist system. REFER to the Owner's Literature.
  • An irregular curb is present along the parking space
The system may not be able to align the vehicle to curbs that are damaged, very shallow or covered by debris. If this is the circumstance, the system aligns the vehicle relative to objects bordering the parking space.
  • A vehicle or object bordering the parking space is not aligned with the parking space.
The system aligns the vehicle to the objects bordering the parking space when a curb is not detected.
  • One of the parked vehicles has an elevated attachment, such as a salt spreader or moving truck bed that the sensors cannot detect
Elevated attachments may not be detected by the system.
  • The parking space length or parked objects position has changed after the vehicle has passed the parking space
The system scans the parking space as the vehicle is driven by the available spaces. Therefore, the system cannot detect if the parked vehicle or objects position has changed after the parking space has been scanned. No action needs to take place at this time.
  • The transmission not shifting correctly
 
REFER to: DTC Chart and Pinpoint Tests - 3.0L EcoBoost (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
The active park assist system does not position the vehicle correctly
  • Active park assist sensor(s) damaged or misaligned
INSTALL a new active park assist sensor(s) as necessary.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
The active park assist system does not offer available parking spaces
  • The vehicle is being driven too close or too far from the adjacent vehicle and/or objects
The vehicle must be driven greater than 40 cm (16 in) and less than 152 cm (60 in) from the adjacent vehicle.
  • The parking space available is too small
  • For parallel parking, the active park assist system only allows available parking spaces that are larger than 1.2 times the length of the vehicle. The system is operating correctly at this time.
  • For perpendicular parking, the active park assist system only allows available parking spaces that are larger than vehicle width + 90 cm (3 ft) wide. The system is operating correctly at this time.
  • There may not be enough room to maneuver the vehicle into the available space
There needs to be enough space on the opposite side of the vehicle to allow the front of the vehicle to swing out as the operator backs into the space.
  • An obstruction may be covering the active park assist sensor(s)
INSPECT and CLEAN the active park assist sensor(s). REMOVE any obstruction that is covering the sensor(s).
  • The active park assist sensor(s) isolator ring is missing, damaged or misaligned
INSTALL a new active park assist sensor(s) as necessary.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • The Outside Air Temperature (OAT) sensor does not indicate accurate temperature readings
DRIVE the vehicle to allow airflow over the Outside Air Temperature (OAT) sensors until the centerstack infotainment display temperature reading is reflective of the actual outside ambient temperature.
The centerstack infotainment display shows POA NOT AVAILABLE when the turn signal is used during a parallel park out assist maneuver
  • The occupied parking space is too small
The active park assist system only offers the parallel park out assist feature when the occupied parking space is at least 1.2 times the length of the vehicle. The system is operating correctly at this time.
  • An obstruction may be covering the front active park assist sensor(s)
INSPECT and CLEAN the front active park assist sensor(s). REMOVE any obstruction that is covering the sensor(s).
  • No object or vehicle is detected directly in front or behind the occupied parking space
The parallel park out assist feature is only available when an object or vehicle is detected within 1.5 m (5 ft) of either the front or the rear bumper. The system is operating correctly at this time.
  • An object or vehicle is detected on the side of the turn signal activation
The parallel park out assist feature displays the message POA NOT AVAILABLE when objects or vehicles are detected within 110 cm (4 ft) in North America and South America or detected within 60 cm (2 ft) in Europe and Asia Pacific on the side of turn signal activation. Passing traffic, pedestrians or other objects may be detected. When the turn signal is activated, VERIFY the desired side has a clearance of at least 110 cm (4 ft) in North America and South America or 60 cm (2 ft) in Europe and Asia Pacific .
The active park assist system does not offer the parallel park out assist feature The vehicle has been driven farther than 2 m (7 ft) after ignition on, or after a parallel park. INFORM customer that the parallel park out assist feature is only an available option immediately after a successful automated parallel park or immediately after ignition on. Driving farther than 2 m (7 ft) after either of these events results in the parallel park out assist not being an available option for the driver to select.

Pinpoint Test(s)


PINPOINT TEST A : B129C:08

NOTE: Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B129C:08 Left Front Side Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the IPMB when there is a message failure on the LIN for the left front active park assist sensor.

Possible Sources

  • Wiring, terminals or connectors
  • Left front active park assist sensor
  • IPMB
A1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMB (IMAGE PROCESSING MODULE B) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the IPMB self-test.
  • Check the IPMB Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to A2
No • For Diagnostic Trouble Codes (DTCs) B129C:08 GO to A3
• For all other IPMB Diagnostic Trouble Codes (DTCs), REFER to the IPMB DTC Chart in this section.

A2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.

Is the front bumper wiring harness OK?
Yes GO to A3
No REPAIR or INSTALL a new front bumper wiring harness.

A3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect left front active park assist sensor C1607 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1607-1 Ground

Is the voltage greater than 9 volts?
Yes GO to A4
No REPAIR the circuit.

A4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1607-1   C1607-3

Is the voltage greater than 9 volts?
Yes GO to A5
No REPAIR the circuit.

A5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1607-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A6
No REPAIR the circuit.

A6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect IPMB C3676B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1607-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to A7

A7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1607-2   C1607-1
      C1607-2   C1607-3

Are the resistances greater than 10,000 ohms?
Yes GO to A8
No REPAIR the affected circuits.

A8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1607-1   C3676B-19
      C1607-2   C3676B-20
      C1607-3   C3676B-6

Are the resistances less than 3 ohms?
Yes GO to A9
No REPAIR the affected circuit.

A9 INSTALL A KNOWN GOOD SENSOR
  • Connect IPMB C3676B .
  • Install a known good sensor for the suspect left front active park assist sensor.
    REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B129C:08 still present?
Yes GO to A10
No INSTALL a new left front active park assist sensor.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

A10 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B : B129D:08

NOTE: Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B129D:08 Right Front Side Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the IPMB when there is a message failure on the LIN for the right front active park assist sensor.

Possible Sources

  • Wiring, terminals or connectors
  • Right front active park assist sensor
  • IPMB
B1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMB (IMAGE PROCESSING MODULE B) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the IPMB self-test.
  • Check the IPMB Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to B2
No • For Diagnostic Trouble Codes (DTCs) B129D:08 GO to B3
• For all other IPMB Diagnostic Trouble Codes (DTCs), REFER to the IPMB DTC Chart in this section.

B2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.

Is the front bumper wiring harness OK?
Yes GO to B3
No REPAIR or INSTALL a new front bumper wiring harness.

B3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect right front active park assist sensor C1608 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1608-1 Ground

Is the voltage greater than 9 volts?
Yes GO to B4
No REPAIR the circuit.

B4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1608-1   C1608-3

Is the voltage greater than 9 volts?
Yes GO to B5
No REPAIR the circuit.

B5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1608-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B6
No REPAIR the circuit.

B6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect IPMB C3676B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1608-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to B7

B7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1608-2   C1608-1
      C1608-2   C1608-3

Are the resistances greater than 10,000 ohms?
Yes GO to B8
No REPAIR the affected circuits.

B8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1608-1   C3676B-19
      C1608-2   C3676B-25
      C1608-3   C3676B-6

Are the resistances less than 3 ohms?
Yes GO to B9
No REPAIR the affected circuit.

B9 INSTALL A KNOWN GOOD SENSOR
  • Connect IPMB C3676B .
  • Install a known good sensor for the suspect right front active park assist sensor.
    REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B129D:08 still present?
Yes GO to B10
No INSTALL a new right front active park assist sensor for the one in question.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

B10 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C : B13F3:08

NOTE: Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B13F3:08 Left Rear Side Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the IPMB when there is a message failure on the LIN for the left rear active park assist sensor.

Possible Sources

  • Wiring, terminals or connectors
  • Left rear active park assist sensor
  • IPMB
C1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMB (IMAGE PROCESSING MODULE B) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the IPMB self-test.
  • Check the IPMB Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to C2
No • For Diagnostic Trouble Codes (DTCs) B13F3:08 GO to C3
• For all other IPMB Diagnostic Trouble Codes (DTCs), REFER to the IPMB DTC Chart in this section.

C2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for opens, shorts, grounds or corrosion.

Is the rear bumper wiring harness OK?
Yes GO to C3
No REPAIR or INSTALL a new rear bumper wiring harness.

C3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect left rear active park assist sensor C4420 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4420-1 Ground

Is the voltage greater than 9 volts?
Yes GO to C4
No REPAIR the circuit.

C4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4420-1   C4420-3

Is the voltage greater than 9 volts?
Yes GO to C5
No REPAIR the circuit.

C5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4420-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C6
No REPAIR the circuit.

C6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect IPMB C3676B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4420-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to C7

C7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4420-2   C4420-1
      C4420-2   C4420-3

Are the resistances greater than 10,000 ohms?
Yes GO to C8
No REPAIR the affected circuits.

C8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors

      DTC


    Positive Lead Measurement / Action Negative Lead
      C4420-1   C3676B-17
      C4420-2   C3676B-7
      C4420-3   C3676B-18

Are the resistances less than 3 ohms?
Yes GO to C9
No REPAIR the affected circuit.

C9 INSTALL A KNOWN GOOD SENSOR
  • Connect IPMB C3676B .
  • Install a known good sensor for the suspect left rear active park assist sensor.
    REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B13F3:08 still present?
Yes GO to C10
No INSTALL a new left rear active park assist sensor for the one in question.
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

C10 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D : B13F4:08

NOTE: Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B13F4:08 Right Rear Side Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the IPMB when there is a message failure on the LIN for the right rear active park assist sensor.

Possible Sources

  • Wiring, terminals or connectors
  • Right rear active park assist sensor
  • IPMB
D1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMB (IMAGE PROCESSING MODULE B) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the IPMB self-test.
  • Check the IPMB Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to D2
No • For Diagnostic Trouble Codes (DTCs) B13F4:08 GO to D3
• For all other IPMB Diagnostic Trouble Codes (DTCs), REFER to the IPMB DTC Chart in this section.

D2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for opens, shorts, grounds or corrosion.

Is the rear bumper wiring harness OK?
Yes GO to D3
No REPAIR or INSTALL a new rear bumper wiring harness.

D3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect right rear active park assist sensor C4421 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4421-1 Ground

Is the voltage greater than 9 volts?
Yes GO to D4
No REPAIR the circuit.

D4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4421-1   C4421-3

Is the voltage greater than 9 volts?
Yes GO to D5
No REPAIR the circuit.

D5 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4421-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D6
No REPAIR the circuit.

D6 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect IPMB C3676B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4221-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to D7

D7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4421-2   C4421-1
      C4421-2   C4421-3

Is the resistance greater than 10,000 ohms?
Yes GO to D8
No REPAIR the affected circuits.

D8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4421-1   C3676B-17
      C4421-2   C3676B-12
      C4421-3   C3676B-18

Are the resistances less than 3 ohms?
Yes GO to D9
No REPAIR the affected circuit.

D9 INSTALL A KNOWN GOOD SENSOR
  • Connect IPMB C3676B .
  • Install a known good sensor for the suspect right rear active park assist sensor.
    REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B13F3:08 still present?
Yes GO to D10
No INSTALL a new right rear active park assist sensor for the one in question.
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

D10 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST E : B129C:96 OR B129D:96

NOTE: Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B129C:96 Left Front Side Sensor: Component Internal Failure A continuous and on-demand DTC that sets in the IPMB when the left front active park assist sensor has internally failed or has an incorrect attenuation time.
IPMB B129D:96 Right Front Side Sensor: Component Internal Failure A continuous and on-demand DTC that sets in the IPMB when the right front active park assist sensor has internally failed or has an incorrect attenuation time.

Possible Sources

  • Front active park assist sensor
  • IPMB
E1 CHECK THE CONTINUOUS AND ON-DEMAND IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the IPMB Diagnostic Trouble Codes (DTCs).

Are Diagnostic Trouble Codes (DTCs) other than DTC B129C:96 or DTC B129D:96 present?
Yes DIAGNOSE all other IPMB Diagnostic Trouble Codes (DTCs) first. REFER to the IPMB DTC Chart in this section.
No GO to E2

E2 CHECK THE FRONT ACTIVE PARK ASSIST SENSOR OPERATION
  • Clean the front bumper and sensors with high-pressure water.
  • Make sure the suspect front active park assist sensor(s) is flush-mounted in the bezel.
  • Perform the azimuth system check.
    REFER to: Azimuth System Check (413-13C Parking Aid - Vehicles With: Active Park Assist, General Procedures).

Does the system pass the azimuth system check?
Yes The system is operating correctly at this time, the concern may have been caused by a dirty, blocked or incorrectly mounted front active park assist sensor.
No GO to E3

E3 INSTALL A KNOWN GOOD SENSOR
  • Ignition OFF.
  • Install a known good sensor for the suspect front active park assist sensor.
    REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B129C:96 or DTC B129D:96 still present?
Yes GO to E4
No INSTALL a new active park assist sensor for the suspect sensor.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

E4 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all BCM connectors and related in-line 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 and related in-line 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST F : B129C:98, B129D:98, B13F3:98, B13F4:98

Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B129C:98 Left Front Side Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHF side parking aid sensor detects an over temperature event.
IPMB B129D:98 Right Front Side Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHF side parking aid sensor detects an over temperature event.
IPMB B13F3:98 Left Rear Side Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHR side parking aid sensor detects an over temperature event.
IPMB B13F4:98 Right Rear Side Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHR side parking aid sensor detects an over temperature event.

Possible Sources

  • Aftermarket parts
  • Damage to the front bumper or sensor
  • Front parking aid sensor
  • IPMB
F1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPMB (IMAGE PROCESSING MODULE B) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the IPMB self-test.
  • Check the IPMB Diagnostic Trouble Codes (DTCs) from the self-test.

Are parking aid Diagnostic Trouble Codes (DTCs) other than B129C:98, B129D:98, B13F3:98, or B13F4:98 recorded?
Yes For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No GO to F2

F2 CHECK THE PARKING AID SENSOR FOR PROPER VENTILATION

NOTE: The operating temperature range for the active park assist sensors is -40°C (-40°F) to 85°C (176°F).

  • Clean the front bumper and sensors with high-pressure water.
  • Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.
  • Check for damage, debris or any aftermarket air dams that may restrict sensor ventilation.
  • Check for aftermarket exhaust or other aftermarket parts.

Is there any damage or aftermarket parts restricting the ventilation to the sensor(s)?
Yes REPAIR or REMOVE the aftermarket parts as needed.
No GO to F3

F3 CHECK THE PARKING AID SENSORS
  • Ignition OFF.
  • Install a known good sensor for the suspect parking aid sensor. For a front sensor,
    REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
    For a rear sensor, REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the IPMB self-test.

Is the concern still present?
Yes GO to F4
No The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly.

F4 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G : B13F3:96, B13F4:96

NOTE: Before disconnecting any of the active park assist sensors, verify the connectors are properly seated and latched.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
IPMB B13F3:96 Left Rear Side Sensor: Component Internal Failure A continuous and on-demand DTC that sets in the IPMB when the left rear active park assist sensor has internally failed or has an incorrect attenuation time.
IPMB B13F4:96 Right Rear Side Sensor: Component Internal Failure A continuous and on-demand DTC that sets in the IPMB when the right rear active park assist sensor has internally failed or has an incorrect attenuation time.

Possible Sources

  • Rear active park assist sensor
  • IPMB
G1 CHECK THE CONTINUOUS AND ON-DEMAND IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the IPMB Diagnostic Trouble Codes (DTCs).

Are Diagnostic Trouble Codes (DTCs) other than DTC B13F3:96 or DTC B13F4:96 present?
Yes DIAGNOSE all other IPMB Diagnostic Trouble Codes (DTCs) first. REFER to the IPMB DTC Chart in this section.
No GO to G2

G2 CHECK THE REAR ACTIVE PARK ASSIST SENSOR OPERATION
  • Clean the rear bumper and sensors with high-pressure water.
  • Make sure the suspect rear active park assist sensor(s) is flush-mounted in the bezel.
  • Perform the azimuth system check.
    REFER to: Azimuth System Check (413-13C Parking Aid - Vehicles With: Active Park Assist, General Procedures).

Does the system pass the azimuth system check?
Yes The system is operating correctly at this time, the concern may have been caused by a dirty, blocked or incorrectly mounted rear active park assist sensor.
No GO to G3

G3 INSTALL A KNOWN GOOD SENSOR
  • Ignition OFF.
  • Install a known good sensor for the suspect rear active park assist sensor.
    REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B13F3:96 or DTC B13F4:96 still present?
Yes GO to G4
No INSTALL a new rear active park assist sensor for the suspect sensor.
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

G4 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H : THE ACTIVE PARK ASSIST SYSTEM DOES NOT ACTIVATE WHEN THE ACTIVE PARK ASSIST SWITCH IS PRESSED

Normal Operation and Fault Conditions

To activate, the active park assist system relies on several messaged inputs and driver input through the active park assist switch. REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • Communication network concern
  • GWM concern
  • Active park assist switch (integral to the ATCM)
  • IPMB
H1 VERIFY THE CONCERN
  • Verify the operation of the active park assist system.

Does the active park assist system operate correctly?
Yes The system is operating correctly at this time. The concern may have been caused by high network traffic or the driver's perception of how the active park assist system operate. REFER to the Owner's Manual.
No GO to H2

H2 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Do the IPMB and the ATCM modules pass the network test?
Yes GO to H3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

H3 CHECK THE IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the IPMB self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the IPMB DTC Chart in this section.
No GO to H4

H4 CHECK THE ATCM (ALL TERRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the ATCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
No GO to H5

H5 CHECK FOR CORRECT ATCM (ALL TERRAIN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ATCM 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 ATCM 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 ATCM.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

H6 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST I : THERE IS AN ACTIVE PARK ASSIST FAULT MESSAGE SHOWN IN THE CENTERSTACK INFOTAINMENT DISPLAY AND/OR IN THE IPC (INSTRUMENT PANEL CLUSTER) MESSAGE CENTER DISPLAY

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13C Parking Aid - Vehicles With: Active Park Assist, Description and Operation).

Possible Sources

  • Communication network concern
  • IPMB
  • PSCM concern
  • SCCM concern
  • ABS concern
  • PCM concern
  • RCM concern
  • TRM concern
  • ATCM concern
  • IPC concern
  • GWM concern
  • APIM concern
  • BCM concern
I1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Do all modules pass the network test?
Yes GO to I2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

I2 CHECK THE IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the IPMB self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the IPMB DTC Chart in this section.
No GO to I3

I3 CHECK THE PSCM (POWER STEERING CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the PSCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
No GO to I4

I4 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the SCCM self-test.

Are any 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).
No GO to I5

I5 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the ABS module self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).
No GO to I6

I6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls - Active Park Assist) .
No GO to I7

I7 CHECK THE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the RCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to I8

I8 CHECK THE TRM (TRAILER MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the TRM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Trailer Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
No For AWD vehicles, GO to I9
For all others, GO to I10

I9 CHECK THE ATCM (ALL TERRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the ATCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
No GO to I10

I10 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the IPC self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
No GO to I11

I11 CHECK THE GWM (GATEWAY MODULE A) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
No GO to I12

I12 CHECK THE BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to I13

I13 CHECK THE APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information, Diagnosis and Testing).
No GO to I14

I14 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all IPMB 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 IPMB 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 IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


    Description and Operation - Parking Aid - System Operation and Component Description

    System Operation Active Park Assist System Diagram Item Description 1 PCM 2 with 14 or 28 speaker system 3 GWM 4 TRM 5 APIM 6 Audio system display 7 SCCM 8 PSCM 9 ATCM 10 ABS module 11 BCM 12 ACM 13 IPC 14 DSP 15 Rear door speakers 16 Front door speakers 17 IPMB 18 Right front active sensor 19 Left front active sensor 20 Right rear active sensor 21 Left rear active sensor 22 PAM Network Message Chart   IPMB Network Input Messages Broadcast Message Originating Module Message Purpose ABS active ABS module Disables the active park assist if an ABS activation occurs...

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    Other information:

    Lincoln Aviator 2020-2023 Owners Manual: Using Driver Alert


    Switching the System On and Off Switch the system on or off using the information display. When active, the system monitors your alertness level based upon your driving behavior in relation to the lane markings, and other factors. System Warnings Note: The system does not issue warnings below approximately 40 mph (64 km/h)...

    Lincoln Aviator 2020-2023 Owners Manual: Using Cross Traffic Alert


    The system detects vehicles that approach at a speed between 4 mph (6 km/h) and 37 mph (60 km/h). Coverage decreases when the sensors are partially, mostly or fully obstructed. Slowly reversing helps increase the coverage area and effectiveness. The system turns on when you start the engine and you shift into reverse (R)...

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    At a Door

    Electronic door handles are on each door. Gently depress the switch inside the exterior door handle to unlock and open the door. An unlock symbol illuminates on the door window trim indicating your vehicle is unlocked.

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