Lincoln Aviator: Exterior Lighting / Diagnosis and Testing - Autolamps

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
  BCM B1A85:11 Ambient Light Sensor: Circuit Short To Ground   GO to Pinpoint Test A
  BCM B1A85:13 Ambient Light Sensor:Circuit Open   GO to Pinpoint Test A
  BCM All other BCM Diagnostic Trouble Codes (DTCs)  
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

Symptom Charts

Symptom Chart: Autolamps

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).

Condition Possible Sources Actions
A module does not respond to the diagnostic scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Module
 
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The autolamps are inoperative or do not operate correctly Refer to the Pinpoint Test   GO to Pinpoint Test A

Pinpoint Tests


PINPOINT TEST A : THE AUTOLAMPS ARE INOPERATIVE OR DO NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 86 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Exterior Lighting - Overview (417-01 Exterior Lighting, Description and Operation).
REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1A85:11 Ambient Light Sensor: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the light sensor input circuit.
BCM B1A85:13 Ambient Light Sensor: Circuit Open An on-demand DTC that sets when the BCM detects an open from the light sensor input circuit.

Possible Sources

  • Light sensor
  • Wiring, terminals or connectors
  • BCM

Visual Inspection and Pre-checks

  • Inspect the headlamp switch for damage.
  • Inspect the light sensor for damage.
A1 CHECK THE MANUAL HEADLAMP OPERATION
  • Place the headlamp switch in the HEADLAMPS and then OFF positions.

Do the headlamps operate correctly?
Yes GO to A2
No
REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing).

A2 CHECK FOR VOLTAGE TO THE LIGHT SENSOR
  • Ignition OFF.
  • Disconnect: Autolamp/Sunload Sensor C286.
  • Ignition ON.
  • Place the headlamp switch in the AUTOLAMPS position.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C286-2   Ground

Is the voltage approximately 5 volts?
Yes GO to A3
No If the voltage is low, GO to A5
If the voltage is high, GO to A7

A3 CHECK THE LIGHT SENSOR FOR GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C286-2   C286-4

Is the voltage approximately 5 volts?
Yes INSTALL a new autolamp/sunload sensor.
REFER to: Light Sensor (417-01 Exterior Lighting, Removal and Installation).
No GO to A4

A4 CHECK THE LIGHT SENSOR GROUND CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: BCM C2280B.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C286-4   C2280B-22

Is the resistance less than 3 ohms?
Yes GO to A8
No REPAIR the circuit.

A5 CHECK THE LIGHT SENSOR INPUT CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: BCM C2280B.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C286-2   Ground

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

A6 CHECK THE LIGHT SENSOR INPUT CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C286-2   C2280B-24

Is the resistance less than 3 ohms?
Yes GO to A8
No REPAIR the circuit.

A7 CHECK THE LIGHT SENSOR INPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect: BCM C2280B.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C286-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to A8

A8 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM and all 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 and all 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 BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, 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.


    Description and Operation - Exterior Lighting - System Operation and Component Description

    System Operation Headlamps - Low Series System Diagram Item Description 1 HS-CAN2 2 BCM 3 LH low beam 4 LH high beam 5 RH low beam 6 RH high beam 7 SCCM 8 LH steering column multifunction switch 9 IPMA 10 GWM 11 HS-CAN1 12 Start/Stop switch 13 HCM 14 LIN 15 LIN 16 PCM 17 LH headlamp 18 RH headlamp 19 LH front suspension height sensor 20 LH rear suspension height sensor 21 Headlamp switch 22 (If equipped automatic headlamp leveling) 23 LIN 24 LIN Network Message Chart   BCM Network Input Messages Broadcast Message Originating Module Message Purpose Headlamp flash to pass status   GWM Indicates to the BCM a request for the high beams or flash-to-pass...

    Diagnosis and Testing - Daytime Running Lamps (DRL)

    Symptom Charts Symptom Chart: DRL 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)...

    Other information:

    Lincoln Aviator 2020-2026 Service Manual: Description and Operation - About this Manual


    Introduction   WARNING: Before beginning any service procedure in this manual, refer to health and safety warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury. For additional information, refer to: Health and Safety Precautions (100-00 General Information, Description and Operation)...

    Lincoln Aviator 2020-2026 Service Manual: Diagnosis and Testing - Air/Fuel Ratio


    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   PCM P0030:00 HO2S Heater Control Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0030:00 HO2S Heater Control Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0036:00 HO2S Heater Control Circuit (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0037:00 HO2S Heater Control Circuit Low (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0038:00 HO2S Heater Control Circuit High (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0040:00 Oxygen Sensor Signals Swapped Bank 1 Sensor 1/Bank 2 Sensor 1: No Sub Type Information   GO to Pinpoint Test DZ   PCM P0041:00 Oxygen Sensor Signals Swapped Bank 1 Sensor 2/Bank 2 Sensor 2: No Sub Type Information   GO to Pinpoint Test DW   PCM P0050:00 HO2S Heater Control Circuit (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0053:00 HO2S Heater Resistance (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0053:00 HO2S Heater Resistance (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0054:00 HO2S Heater Resistance (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0056:00 HO2S Heater Control Circuit (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0059:00 HO2S Heater Resistance (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0060:00 HO2S Heater Resistance (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P00D2:00 HO2S Heater Control Circuit Range/Performance (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0130:00 O2 Sensor Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0130:00 O2 Sensor Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0131:00 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0131:00 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0132:00 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0132:00 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0133:00 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0133:00 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0134:00 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0134:00 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0135:00 O2 Sensor Heater Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P0135:00 O2 Sensor Heater Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0136:00 O2 Sensor Circuit (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0137:00 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0138:00 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0139:00 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P013A:00 O2 Sensor Slow Response - Rich To Lean (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P013B:00 O2 Sensor Slow Response - Lean To Rich (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P013C:00 O2 Sensor Slow Response - Rich To Lean (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P013E:00 O2 Sensor Delayed Response - Rich To Lean (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0140:00 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0141:00 O2 Sensor Heater Circuit (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P014A:00 O2 Sensor Delayed Response - Rich To Lean (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0150:00 O2 Sensor Circuit (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0151:00 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0152:00 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0153:00 O2 Sensor Circuit Slow Response (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0154:00 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0155:00 O2 Sensor Heater Circuit (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P0157:00 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0158:00 O2 Sensor Circuit High Voltage (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0159:00 O2 Sensor Circuit Slow Response (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P0161:00 O2 Sensor Heater Circuit (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P016A:00 Excessive Time To Enter Closed Loop Air/Fuel Ratio Control: No Sub Type Information   GO to Pinpoint Test DW   PCM P0171:00 System Too Lean Bank 1: No Sub Type Information   GO to Pinpoint Test H   PCM P0172:00 System Too Rich Bank 1: No Sub Type Information   GO to Pinpoint Test H   PCM P0174:00 System Too Lean Bank 2: No Sub Type Information   GO to Pinpoint Test H   PCM P0175:00 System Too Rich Bank 2: No Sub Type Information   GO to Pinpoint Test H   PCM P064D:00 Internal Control Module O2 Sensor Processor Performance (Bank 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P064E:00 Internal Control Module O2 Sensor Processor Performance (Bank 2): No Sub Type Information   GO to Pinpoint Test DZ   PCM P1127:00 Exhaust Temperature Out Of Range, O2 Sensor Tests Not Completed: No Sub Type Information   GO to Pinpoint Test DZ   PCM P1137:00 Lack Of HO2S12 Switches - Sensor Indicates Lean: No Sub Type Information   GO to Pinpoint Test H   PCM P1138:00 Lack Of HO2S12 Switches - Sensor Indicates Rich: No Sub Type Information   GO to Pinpoint Test H   PCM P1157:00 Lack Of HO2S22 Switches - Sensor Indicates Lean: No Sub Type Information   GO to Pinpoint Test H   PCM P1158:00 Lack Of HO2S22 Switches - Sensor Indicates Rich: No Sub Type Information   GO to Pinpoint Test H   PCM P1646:00 Linear O2 Sensor Control Chip (Bank 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P1647:00 Linear O2 Sensor Control Chip (Bank 2): No Sub Type Information   GO to Pinpoint Test DZ   PCM P164A:00 O2 Sensor Positive Current Trim Circuit Performance (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P164B:00 O2 Sensor Positive Current Trim Circuit Performance (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2096:00 Post Catalyst Fuel Trim System Too Lean (Bank 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2097:00 Post Catalyst Fuel Trim System Too Rich (Bank 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2098:00 Post Catalyst Fuel Trim System Too Lean (Bank 2): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2099:00 Post Catalyst Fuel Trim System Too Rich (Bank 2): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2195:00 O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test H   PCM P2196:00 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test H   PCM P2197:00 O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test H   PCM P2198:00 O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test H   PCM P219A:00 Bank 1 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P219B:00 Bank 2 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P219C:00 Cylinder 1 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P219D:00 Cylinder 2 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P219E:00 Cylinder 3 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P219F:00 Cylinder 4 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P21A0:00 Cylinder 5 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P21A1:00 Cylinder 6 Air-Fuel Ratio Imbalance: No Sub Type Information   GO to Pinpoint Test H   PCM P2237:00 O2 Sensor Positive Current Control Circuit/Open (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2240:00 O2 Sensor Positive Current Control Circuit/Open (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2243:00 O2 Sensor Reference Voltage Circuit/Open (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2247:00 O2 Sensor Reference Voltage Circuit/Open (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2251:00 O2 Sensor Negative Current Control Circuit/Open (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2254:00 O2 Sensor Negative Current Control Circuit/Open (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2270:00 O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P2270:00 O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test H   PCM P2271:00 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P2271:00 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test H   PCM P2272:00 O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P2272:00 O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test H   PCM P2273:00 O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P2273:00 O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test H   PCM P2297:00 O2 Sensor Out Of Range During Deceleration (Bank 1, Sensor 1): No Sub Type Information   GO to Pinpoint Test DW   PCM P2626:00 O2 Sensor Positive Current Trim Circuit / Open (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2627:00 O2 Sensor Positive Current Trim Circuit Low (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2628:00 O2 Sensor Positive Current Trim Circuit High (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2629:00 O2 Sensor Positive Current Trim Circuit / Open (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2630:00 O2 Sensor Positive Current Trim Circuit Low (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2631:00 O2 Sensor Positive Current Trim Circuit High (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test DZ   PCM P2A01:00 O2 Sensor Circuit Range/Performance (Bank 1 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P2A04:00 O2 Sensor Circuit Range/Performance (Bank 2 Sensor 2): No Sub Type Information   GO to Pinpoint Test DW   PCM P2BEC:00 Fuel Control System A Too Lean Bank 1: No Sub Type Information   GO to Pinpoint Test H   PCM P2BED:00 Fuel Control System A Too Rich Bank 1: No Sub Type Information   GO to Pinpoint Test H   PCM P2BEE:00 Fuel Control System A Too Lean Bank 2: No Sub Type Information   GO to Pinpoint Test H   PCM P2BEF:00 Fuel Control System A Too Rich Bank 2: No Sub Type Information   GO to Pinpoint Test H   PCM P2BF0:00 Fuel Control System B Too Lean Bank 1: No Sub Type Information   GO to Pinpoint Test H   PCM P2BF1:00 Fuel Control System B Too Rich Bank 1: No Sub Type Information   GO to Pinpoint Test H   PCM P2BF2:00 Fuel Control System B Too Lean Bank 2: No Sub Type Information   GO to Pinpoint Test H   PCM P2BF3:00 Fuel Control System B Too Rich Bank 2: No Sub Type Information   GO to Pinpoint Test H Global Customer Symptom Code (GCSC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...

    Categories

    Adjusting the Steering Wheel - Vehicles With: Manual Adjustable Steering Column

    WARNING: Do not adjust the steering wheel when your vehicle is moving.

    Note: Make sure that you are sitting in the correct position.

    Unlock the steering column. Adjust the steering wheel to the desired position.

    Lincoln Aviator. Column

    Lock the steering column.

    read more

     
    Copyright © 2026 www.liaviator2.com