For a detailed description of the exterior lighting system, refer to the Description and Operation section 417-00 - Exterior Lighting of the workshop manual.
Three types of Headlamp are available: Halogen, Bi-Xenon or Adaptive Front Lighting System (AFS).
Given the potential for personal injury, the following safety information should be followed at all times:
The Xenon Headlamp system generates up to 28,000 volts. Make sure that the headlamps are switched off before working on the system. Failure to follow this instruction may lead to fatality.
The following safety precautions must be followed when working on the Xenon Headlamp System:
Xenon bulbs must be disposed of as hazardous waste.
There are instructions on the correct procedures for Xenon Headlamp System repairs in the manual, refer to section 100-00 - General Information, Standard Workshop Practices of the workshop manual.
Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
Visual Inspection
| Mechanical | Electrical |
|---|---|
|
|
| Symptom | Possible Causes | Action |
|---|---|---|
| Low beam lamp(s) inoperative |
| Check the bulb and fuse condition (see visual inspection). Check the headlamp circuits. Check the lighting control switch function. Check the left-hand steering column multifunction switch operation. Refer to the electrical guides. Check for DTCs indicating a headlamp or related circuit fault. |
| High beam lamp(s) inoperative | ||
| Low beam lamp(s) dim |
| Check the bulb condition and rating. Check the tourist lever is set correctly. Check the headlamp circuits. Check the lighting control switch function. Check the left-hand steering column multifunction switch function. Refer to the electrical guides. |
| High beam lamp(s) dim | ||
| Low beam lamp(s) stuck on |
| Check the headlamp circuits. Check the lighting control switch function. Check the left-hand steering column multifunction switch operation. Check the headlamp timer function. Refer to the electrical guides. Check for DTCs indicating a headlamp circuit fault |
| High beam lamp(s) stuck on | ||
| Headlamp low/high beam switching function inoperative |
| Check the headlamp circuits. Check the left-hand steering column multifunction switch operation. Check the Xenon lamp shutter mechanism operation. Refer to the electrical guides. Check for DTCs indicating a headlamp circuit fault |
| Warning lamp(s) inoperative |
| Check the fuse(s) (see visual inspection). Check the lighting control switch function. Check the left-hand steering column multifunction switch function. Check the warning lamp circuits. Refer to the electrical guides. Check for DTCs indicating an instrument cluster or CAN system fault. |
| Headlamp Wet - Internal |
| Check for outstanding Technical Service Bulletins (TSBs) relating to 'Headlamp Internal Condensation'. Carry out the instructions in the service bulletin to determine if the fault is related to condensation or water ingress. |
If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to the installation of a new module/component.
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.
Prior to installation/replacement of the Headlamp Assembly carry out all relevant internal visual and mechanical checks for correct cable location and termination including: checks for corroded, bent or backed out pins or terminals, incorrectly inserted connectors and harness damage due to chaffing or incorrect routing.
If the control module has been removed and reinstalled, carry out a DTC code clear, cycle the ignition state to off, then on. This will erase any DTCs that have been logged during the module installation procedure
| DTC | Description | Possible Causes | Action |
|---|---|---|---|
| B1A57-01 | Left Headlamp Leveling Motor - General Electrical Failure |
| Using the manufacturer approved diagnostic system perform an on demand self test (On Demand Self Test), look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). Refer to the electrical circuit diagrams and check for circuit fault between the Adaptive Front Lighting System (AFS) Control Module and the Headlamp Leveling Motor. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B1A58-01 | Right Headlamp Leveling Motor - General Electrical Failure |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). Refer to the electrical circuit diagrams and check for circuit fault between the Adaptive Front Lighting System (AFS) Control Module and the Headlamp Leveling motor. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B1D66-00 | Left Headlamp Power Module - No Sub-Type Information |
|
NOTE:
The power module is a service item |
| B1D67-00 | Right Headlamp Power Module - No Sub-Type Information |
|
NOTE:
The power module is a service item |
| B1D66-91 | Left Headlamp Power Module - Parametric |
|
NOTE:
The power module is a service item |
| B1D67-91 | Right Headlamp Power Module - Parametric |
|
NOTE:
The power module is a service item |
| U3000-16 | Control Module - Circuit voltage below threshold |
| Suspect Battery or Charging fault. Check the battery condition and state of charge. Check the vehicle charging system. Refer to the relevant workshop manual section. Clear the DTC, cycle ignition state to off then on, if DTC returns refer to the electrical circuit diagrams and check power and ground circuit to the Adaptive Front Lighting System (AFS) Control Module |
| U3000-17 | Control Module - Circuit voltage above threshold |
| Suspect Charging fault. Check the battery condition and state of charge. Check the vehicle charging system. Refer to the relevant workshop manual section |
| B1D68-01 | Left Headlamp Swiveling Feedback Sensor Circuit - General Electrical Failure |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). If no faults are evident refer to the electrical circuit diagrams and check for circuit fault between the Headlamp Power Module and the swiveling feedback sensor. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B1D69-01 | Right Headlamp Swiveling Feedback Sensor Circuit - General Electrical Failure |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). If no faults are evident refer to the electrical circuit diagrams and check for circuit fault between the Headlamp Power Module and the swiveling feedback sensor. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B1D64-00 | Left Headlamp Swiveling Motor Circuit - No Sub-Type Information |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). If no faults are evident refer to the electrical circuit diagrams and check for circuit fault between the Headlamp Power Module and the swiveling motor circuit. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B1D65-00 | Right Headlamp Swiveling Motor Circuit - No Sub-Type Information |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). If no faults are evident refer to the electrical circuit diagrams and check for circuit fault between the Headlamp Power Module and the swiveling motor circuit. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B10A3-71 | Left Swivel Actuator - Actuator Stuck |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). If no faults are evident refer to the electrical circuit diagrams and check for circuit fault between the Headlamp Power Module and the swivel actuator. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| B10A4-71 | Right Swivel Actuator - Actuator Stuck |
| Using the manufacturer approved diagnostic system perform an On Demand Self Test, look for any errors in movement (compare with other headlamp) and visually inspect the lamp for internal damage or dislocation (ball joints out). If no faults are evident refer to the electrical circuit diagrams and check for circuit fault between the Headlamp Power Module and the swivel actuator. If no mechanical or circuit faults are evident, suspect headlamp internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| U0132-87 | Lost Communication With Ride Level Control Module - Missing Message |
| Check the Air Suspension Control Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Air Suspension Control Module |
| U0126-87 | Lost Communication With Steering Angle Sensor Module - Missing Message |
| Check the Steering Angle Sensor Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Steering Angle Sensor Module |
| U0126-86 | Lost Communication With Steering Angle Sensor Module - Invalid Signal |
| Check the Steering Angle Sensor Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Steering Angle Sensor |
| U0155-87 | Lost Communication With Instrument Panel Cluster (IPC) Control Module - Missing Message |
| Check the Instrument Cluster for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Instrument Cluster |
| U0102-87 | Lost Communication with Transfer Case Control Module - Missing Message |
| Check the Transfer Box Control Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Transfer Box Control Module |
| U0122-87 | Lost Communication With Vehicle Dynamics Control Module - Missing Message |
| Check the Dynamic Response Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Dynamic Response Module |
| U0122-86 | Lost Communication With Vehicle Dynamics Control Module - Invalid Signal |
| Check the Dynamic Response Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Dynamic Response Module |
| U1A38-87 | Lost communication to LH Power Light Module - Missing Message |
|
NOTES:
|
| U1A39-87 | Lost communication to RH Power Light Module - Missing Message |
|
NOTES:
|
| U1A14-49 | CAN Initialization Failure - Internal electronic failure |
| Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Check other modules for stored DTCs. Refer to the electrical circuit diagrams and check the CAN Network to the Adaptive Front Lighting System (AFS) Control Module for circuit fault. If no circuit faults are evident suspect Adaptive Front Lighting System (AFS) Control Module internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| U0300-62 | Internal Control Module Software Incompatibility - Signal Compare Failure. |
| Check the correct Adaptive Front Lighting System (AFS) Control Module is installed to vehicle specification. Refit original or replace the module as required. Refer to the new module/component installation note at the top of the DTC Index |
| U3000-55 | Control Module - Not Configured |
|
NOTE:
The Car Configuration File (CCF) parameters required are (Vehicle type)(Headlamp type)(Gearbox type) and (Dayrunning light) |
| U3000-42 | Control Module - General memory failure |
| Suspect Adaptive Front Lighting System (AFS) Control Module internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| U0073-00 | Control Module Communication Bus Off - No Sub-Type Information |
| Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Check other modules for stored DTCs. Refer to the electrical circuit diagrams and check the CAN Network to Adaptive Front Lighting System (AFS) Control Module for circuit fault. If no circuit faults are evident suspect Adaptive Front Lighting System (AFS) Control Module internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index |
| U0100-87 | Lost Communication With ECM/PCM “A” - Missing Message |
| Check the Engine Control Module for stored DTCs. Using the manufacturer approved diagnostic system, complete the CAN Network Integrity test. Refer to the electrical circuit diagrams and check the CAN Network between the Adaptive Front Lighting System (AFS) Control Module and the Engine Control Module |
If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to the installation of a new module/component.
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.
Prior to installation/replacement of the Headlamp Assembly carry out all relevant internal visual and mechanical checks for correct cable location and termination including: checks for corroded, bent or backed out pins, terminals and incorrectly inserted connectors.
| DTC | Description | Possible causes | Action |
|---|---|---|---|
| B1D0011 | Left Low Beam |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0015 | Left Low Beam |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0111 | Right Low Beam |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0115 | Right Low Beam |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0211 | Left High Beam Circuit |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0215 | Left High Beam Circuit |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0311 | Right High Beam Circuit |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D0315 | Right High Beam Circuit |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D3613 | Turn Indicator Switch |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| B1D4013 | Lighting Switch Connection Circuit |
| Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the circuit, repair/renew as necessary. |
| U018287 | Lost Communication With Lighting Control Module - Front |
| Refer to the Network Communications section of the workshop manual. |
| U300016 | Control Module |
| Check the battery condition and state of charge. Refer to section 414-00 - Charging System of the workshop manual. Check the control module circuits. Refer to the electrical guides. |
| U300017 | Control Module |
| Check the battery condition and state of charge. Refer to section 414-00 - Charging System of the workshop manual. Check the control module circuits. Refer to the electrical guides. |
| U300042 | Control Module |
| Refer to the warranty policy and procedures manual if a module is suspect. |
| U300055 | Control Module |
| Configure the modules using the approved diagnostic system. Check for CAN DTCs. |
| U1A1449 | CAN Initialization Failure |
| Check the power and ground circuits to the component. Refer to the electrical guides. Configure the module(s) using the approved diagnostic system. Refer to the warranty policy and procedures manual if a module is suspect. |