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Home >> Land Rover >> 2010 >> LR4 Base >> Repair and Diagnosis (Single Page) >> General Information >> DTC Index >> DTC Index & General Information (2 Of 3) >> Description & Operation >> Diagnostic Trouble Code (DTC) Index - (DTC: Headlamp Control Module A (HCM)) >> Headlamp Control Module A (HCM) >> DTC's
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Headlamp Control Module A (HCM): DTC's

DTC Description Possible Causes Action
B1041-04 Levelling Control - System internal failures
  • No headlamp levelling functionality - Module internal failure
  • Install a new headlamp Control module as required. Refer to the warranty policy and procedures manual
B1041-54 Levelling Control - Missing calibration
  • Levelling sensor calibration routine not carried out
NOTE: Sensor calibration routine must be carried out with the vehicle unladen and with correct tire pressures.
  • Carry out the levelling sensor calibration routine using the manufacturer approved diagnostic system
B1087-83 LIN Bus "A" - Value of signal protection calculation incorrect
  • LIN bus circuit fault
  • No communication on the LIN bus
  • LIN bus EMC interference
NOTE: This circuit uses shielded cable
  • Refer to the electrical circuit diagrams and check the LIN bus circuit for harness damage
B1087-86 LIN Bus "A" - Signal invalid
  • LIN bus circuit fault
  • No communication on the LIN bus
  • LIN bus EMC interference
NOTE: This circuit uses shielded cable
  • Refer to the electrical circuit diagrams and check the LIN bus circuit for harness damage
B1087-88 LIN Bus "A" - Bus off
  • LIN bus circuit fault
  • No communication on the LIN bus
NOTE: This circuit uses shielded cable
  • Refer to the electrical circuit diagrams and check the LIN bus circuit for harness damage
B10AE-11 Headlamp Leveling Motor - Circuit short to ground
  • Headlamp Levelling motor Control circuit - short to ground
NOTE: Circuit - DCM R/L -
  • Refer to the electrical circuit diagrams and check headlamp leveling motor control circuit for short to ground
B10AE-12 Headlamp Leveling Motor - Circuit short to battery
  • Headlamp levelling motor Control circuit - short to power
NOTE: Circuit - DCM R/L -
  • Refer to the electrical circuit diagrams and check headlamp leveling motor control circuit for short to power
B10AE-64 Headlamp Leveling Motor - Signal plausibility failure
  • signal plausibility failure
NOTE: Circuit - DCM R/L -
  • Refer to the electrical circuit diagrams and check headlamp leveling motor circuits for failure. Disconnect one headlamp connector, clear DTC and re-test. If DTC cleared, suspect headlamp leveling control module or circuits to the disconnected side of the failure. If DTC remains, reconnect first headlamp and disconnect second, clear DTC and re-test. If DTC cleared, suspect headlamp leveling control module or circuits to the disconnected side of the failure. If DTC remains, suspect common circuits of the failure. Refer to the electrical circuit diagrams and check as required
B1A59-11 Sensor 5 Volt Supply - Circuit short to ground
  • Headlamp levelling sensor 5 volt supply circuit - short to ground
NOTE: Circuits - SVSF+ - SVSR+ -
  • Refer to the electrical circuit diagrams and check headlamp levelling sensor 5 volt supply circuit for short to ground
B1A59-12 Sensor 5 Volt Supply - Circuit short to battery
  • Headlamp levelling sensor 5 volt supply circuit - short to power
NOTE: Circuits - SVSF+ - SVSR+ -
  • Refer to the electrical circuit diagrams and check headlamp levelling sensor 5 volt supply circuit for short to power
B1D64-01 Left Headlamp Swivelling Motor - General electrical failure
  • General electrical failure- Left headlamp swivelling motor error
  • Check the headlamp connections, clear the DTC and re-test. If the DTC remains install a new headlamp
B1D64-04 Left Headlamp Swivelling Motor - System internal failures
  • System internal failures - Left headlamp swivelling motor error
  • Check the headlamp connections, clear the DTC, switch off the ignition and allow sufficient time for the headlamp leveling control module to power down and re-test. If the DTC persists, install a new headlamp
B1D64-87 Left Headlamp Swivelling Motor - Missing message
  • Missing message
  • Check the headlamp connections, clear DTC and re-test. If DTC remains install a new headlamp
B1D65-01 Right Headlamp Swivelling Motor - General electrical failure
  • General electrical failure- right headlamp swivelling motor error
  • Check the headlamp connections, clear the DTC and re-test. If the DTC remains install a new headlamp
B1D65-04 Right Headlamp Swivelling Motor - System internal failures
  • System internal failures - Right headlamp swivelling motor error
  • Check the headlamp connections, clear the DTC, switch off the ignition and allow sufficient time for the headlamp leveling control module to power down and re-test. If the DTC persists, install a new headlamp
B1D65-87 Right Headlamp Swivelling Motor - Missing message
  • Missing message
  • Check the headlamp connections, clear DTC and re-test, if DTC remains install a new headlamp
B1D68-00 Left Headlamp Swivelling Feedback Sensor - No sub type information
  • sensor not detected
  • Check the headlamp connector for integrity. Refer to the circuit diagrams and check headlamp circuit. Clear DTC and re-test, if DTC remains install a new headlamp
B1D69-00 Right Headlamp Swivelling Feedback Sensor - No sub type information
  • sensor not detected
  • Check the headlamp connector for integrity. Refer to the circuit diagrams and check headlamp circuit. Clear DTC and re-test, if DTC remains install a new headlamp
C1A04-11 Right Front Height Sensor - Circuit short to ground
  • Height sensor harness wiring short circuit to ground
  • Check the air suspension control module for DTCs. Check the sensor connector for damage. Refer to the electrical circuit diagrams and check the sensor circuit for continuity or short circuit. Check sensor signal changes when sensor is rotated. If any height sensor fixings are slackened or found to be loose, or a height sensor has been changed, the vehicle ride height must be re-calibrated. Calibrate the system using the approved diagnostic system
C1A04-15 Right Front Height Sensor - Circuit short to battery or open
  • Height sensor harness wiring short circuit to power
  • Check the air suspension control module for DTCs. Check the sensor connector for damage. Refer to the electrical circuit diagrams and check the sensor circuit for continuity or short circuit. Check sensor signal changes when sensor is rotated. If any height sensor fixings are slackened or found to be loose, or a height sensor has been changed, the vehicle ride height must be re-calibrated. Calibrate the system using the approved diagnostic system
C1A04-64 Right Front Height Sensor - Signal plausibility failure
  • Height sensor signal plausibility failure
  • Check the air suspension control module for DTCs. Check the sensor connector for damage. Refer to the electrical circuit diagrams and check the sensor circuit for continuity or short circuit. Check sensor signal changes when sensor is rotated. If any height sensor fixings are slackened or found to be loose, or a height sensor has been changed, the vehicle ride height must be re-calibrated. Calibrate the system using the approved diagnostic system
C1A06-11 Right Rear Height Sensor - Circuit short to ground
  • Height sensor harness wiring short circuit to ground
  • Check the air suspension control module for DTCs. Check the sensor connector for damage. Refer to the electrical circuit diagrams and check the sensor circuit for continuity or short circuit. Check sensor signal changes when sensor is rotated. If any height sensor fixings are slackened or found to be loose, or a height sensor has been changed, the vehicle ride height must be re-calibrated. Calibrate the system using the approved diagnostic system
C1A06-15 Right Rear Height Sensor - Circuit short to battery or open
  • Height sensor harness wiring short circuit to power
  • Check the air suspension control module for DTCs. Check the sensor connector for damage. Refer to the electrical circuit diagrams and check the sensor circuit for continuity or short circuit. Check sensor signal changes when sensor is rotated. If any height sensor fixings are slackened or found to be loose, or a height sensor has been changed, the vehicle ride height must be re-calibrated. Calibrate the system using the approved diagnostic system
C1A06-64 Right Rear Height Sensor - Signal plausibility failure
  • Height sensor signal plausibility failure
  • Check the air suspension control module for DTCs. Check the sensor connector for damage. Refer to the electrical circuit diagrams and check the sensor circuit for continuity or short circuit. Check sensor signal changes when sensor is rotated. If any height sensor fixings are slackened or found to be loose, or a height sensor has been changed, the vehicle ride height must be re-calibrated. Calibrate the system using the approved diagnostic system
U0001-88 High Speed CAN Communication Bus - Bus off Bus off
  • Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network
U0101-00 Lost Communication with TCM - No sub type information
  • CAN Bus communication error
  • Refer to the electrical circuit diagrams and check the power and ground connections to the transmission control module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the transmission control module and the headlamp leveling control module
U0102-00 Lost Communication with Transfer Case Control Module - No sub type information
  • CAN Bus communication error
  • Refer to the electrical circuit diagrams and check the power and ground connections to the transfer case control module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the transfer case control module and the headlamp leveling control module
U0121-00 Lost Communication With Anti-Lock Brake System (ABS) Control Module - No sub type information
  • CAN Bus communication error
  • Refer to the electrical circuit diagrams and check the power and ground connections to the anti-lock brake system control module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the anti-lock brake system control module and the headlamp leveling control module
U0126-00 Lost Communication With Steering Angle Sensor Module - No sub type information
  • CAN Bus communication error
  • Refer to the electrical circuit diagrams and check the power and ground connections to the steering angle sensor module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the steering angle sensor module and the headlamp leveling control module
U0140-00 Lost Communication With Body Control Module - No sub type information
  • CAN Bus communication error
  • Refer to the electrical circuit diagrams and check the power and ground connections to the central junction box. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the central junction box and the headlamp leveling control module
U0142-00 Lost Communication With Body Control Module "B" - No sub type information
  • CAN Bus communication error
  • Refer to the electrical circuit diagrams and check the power and ground connections to the central junction box. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network between the central junction box and the headlamp leveling control module
U0300-00 Internal Control Module Software Incompatibility - No sub type information
  • Car Configuration File information incompatible to ECU
  • Check/amend car configuration file using the manufacturer approved diagnostic system
U0402-00 Invalid Data Received From Transmission Control Module - No sub type information
  • No sub type information
  • Check the transmission control module for related DTCs and refer to the relevant DTC index
U0403-00 Invalid Data Received From Transfer Case Control Module - No sub type information
  • No sub type information
  • Check the transfer case control module for related DTCs and refer to the relevant DTC index
U0415-00 Invalid Data Received From Anti-Lock Brake System Control Module - No sub type information
  • Invalid data received from ABS module
  • Check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
U0428-00 Invalid Data Received From Steering Angle Sensor Module - No sub type information
  • No sub type information
  • Check the steering angle sensor module for related DTCs and refer to the relevant DTC index
U2100-00 Initial Configuration Not Complete - No sub type information
  • Car Configuration File information not received completely
  • Check/amend car configuration file using manufacturer approved diagnostic system
U2101-00 Control Module Configuration Incompatible - No sub type information
  • Car Configuration File information incompatible to ECU
  • Check/amend car configuration file using manufacturer approved diagnostic system
U3002-81 Vehicle Identification Number - Invalid serial data received
  • Stored VIN does not match most recent VIN
  • Check/amend car configuration file using manufacturer approved diagnostic system
U3003-16 Battery Voltage - Circuit voltage below threshold
  • Circuit voltage below threshold
  • Check vehicle battery and charging system. Refer to the relevant section in the workshop manual. Refer to the electrical circuit diagrams and check the power and ground supply circuits to the headlamp leveling control module
U3003-17 Battery Voltage - Circuit voltage above threshold
  • Circuit voltage above threshold
  • Check vehicle battery and charging system. Refer to the relevant section in the workshop manual. Refer to the electrical circuit diagrams and check the power and ground supply circuits to the headlamp leveling control module
U3003-62 Battery Voltage - Signal compare failure
  • Mis-match in battery voltage, between Central Junction Box and headlamp Control module, of 2 volts or more
  • Check vehicle battery and charging system. Refer to the relevant section in the workshop manual. Refer to the electrical circuit diagrams and check the power and ground supply circuits to the central junction box and the headlamp leveling control module