Headlamp Control Module (HCM)

CAUTION: 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

NOTE:

Guided Diagnostics must be followed and the repair advised by the process completed. Failure to do so may result in the rejection of any warranty claim made.
If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual, or determine if any prior approval program 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 Jaguar Land Rover approved diagnostic equipment)
When performing voltage or resistance tests, always use a digital multimeter that has the resolution ability to view 3 decimal places. For example, on the 2 volts range can measure 1 mV or 2 K Ohm range can measure 1 Ohm. When testing resistance always take the resistance of the digital multimeter leads into account
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 diagnostic trouble codes 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
Where an 'on demand self-test' is referred to, this can be accessed via the 'diagnostic trouble code monitor' tab on the Jaguar Land Rover approved diagnostic equipment
Check JLR claims submission system for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific customer complaint and carry out the recommendations as required.

The DTC Index lists all diagnostic trouble codes (DTCs) that could be logged in the headlamp control module, for additional diagnosis and testing information refer to the relevant diagnosis and testing service information. For additional information, Refer to: HEADLAMP LEVELING

DTC	DESCRIPTION	POSSIBLE CAUSES	ACTION
B103C-49	Left Headlamp Control - Internal electronic failure	Left headlamp assembly internal failure	Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B103D-49	Right Headlamp Control - Internal electronic failure	Right headlamp assembly internal failure	Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1041-54	Leveling Control - Missing calibration	Headlamp leveling calibration routine has not been run successfully	NOTE: Sensor calibration routine must be carried out with the vehicle unladen and with correct tire pressures Rectify any headlamp related DTCs first. Using the Jaguar Land Rover approved diagnostic equipment, run the diagnostic routine - Calibrate Leveling Sensors (0x200D)
B1087-31	LIN Bus "A" - No signal	LIN bus circuit short circuit to ground, open circuit high resistance	Refer to the electrical circuit diagrams and check the LIN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest
B1087-81	LIN Bus "A" - Invalid serial data received	LIN bus circuit short circuit to ground, open circuit high resistance	Refer to the electrical circuit diagrams and check the LIN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest
B10AE-01	Headlamp Leveling Motor - General electrical failure	Left headlamp leveling motor error	Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new headlamp control module
B10AE-4B	Headlamp Leveling Motor - Over temperature	Headlamp leveling motor internal temperature above threshold	Check that the headlamp internal movement is not obstructed Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new headlamp control module
B10F3-11	Left front position light - Circuit short to ground	Front left side lamp circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side lamp circuit for short circuit to ground. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B10F3-12	Left front position light - Circuit short to battery	Front left side lamp circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side lamp circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B10F3-13	Left front position light - Circuit open	Front left side lamp circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side lamp circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B10F3-16	Left front position light - Circuit voltage below threshold	Front left side lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B10F3-19	Left front position light - Circuit current above threshold	Front left side lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B10F3-4B	Left front position light - Over temperature	Front left side lamp internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B10F4-11	Right front position light - Circuit short to ground	Front right side lamp circuit short circuit to ground Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side lamp circuit for short circuit to ground. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B10F4-12	Right front position light - Circuit short to battery	Front right side lamp circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side lamp circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B10F4-13	Right front position light - Circuit open	Front right side lamp circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side lamp circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B10F4-16	Right front position light - Circuit voltage below threshold	Front right side lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B10F4-19	Right front position light - Circuit current above threshold	Front right side lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B10F4-4B	Right front position light - Over temperature	Front right side lamp internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B123A-11	Left Front Turn Indicator - Circuit short to ground	Front left turn signal indicator circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left turn signal indicator circuit for short circuit to ground. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B123A-12	Left Front Turn Indicator - Circuit short to battery	Front left turn signal indicator circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left turn signal indicator circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B123A-13	Left Front Turn Indicator - Circuit open	Front left turn signal indicator circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left turn signal indicator circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B123A-16	Left Front Turn Indicator - Circuit voltage below threshold	Front left turn signal indicator circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left turn signal indicator circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B123A-19	Left Front Turn Indicator - Circuit current above threshold	Front left turn signal indicator circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left turn signal indicator circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B123A-4B	Left Front Turn Indicator - Over temperature	Front left turn signal indicator internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B123B-11	Right Front Turn Indicator - Circuit short to ground	Front right turn signal indicator circuit short circuit to ground Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right turn signal indicator circuit for short circuit to ground. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B123B-12	Right Front Turn Indicator - Circuit short to battery	Front right turn signal indicator circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right turn signal indicator circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B123B-13	Right Front Turn Indicator - Circuit open	Front right turn signal indicator circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right turn signal indicator circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B123B-16	Right Front Turn Indicator - Circuit voltage below threshold	Front right turn signal indicator circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right turn signal indicator circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B123B-19	Right Front Turn Indicator - Circuit current above threshold	Front right turn signal indicator circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right turn signal indicator circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B123B-4B	Right Front Turn Indicator - Over temperature	Front right turn signal indicator internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124A-11	Right Daytime Running Light - Circuit short to ground	Right side daytime running light circuit short circuit to ground Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side daytime running light circuit for short circuit to ground. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124A-12	Right Daytime Running Light - Circuit short to battery	Right side daytime running light circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side daytime running light circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124A-13	Right Daytime Running Light - Circuit open	Right side daytime running light circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side daytime running light circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124A-16	Right Daytime Running Light - Circuit voltage below threshold	Right side daytime running light circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side daytime running light circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124A-19	Right Daytime Running Light - Circuit current above threshold	Right side daytime running light circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side daytime running light circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124A-4B	Right Daytime Running Light - Over temperature	Right side daytime running light internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B124B-11	Left Daytime Running Light - Circuit short to ground	Left side daytime running light circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side daytime running light circuit for short circuit to ground. Repair circuit as required, clear the DTCs and retest Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B124B-12	Left Daytime Running Light - Circuit short to battery	Left side daytime running light circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side daytime running light circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B124B-13	Left Daytime Running Light - Circuit open	Left side daytime running light circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side daytime running light circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B124B-16	Left Daytime Running Light - Circuit voltage below threshold	Left side daytime running light circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side daytime running light circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B124B-19	Left Daytime Running Light - Circuit current above threshold	Left side daytime running light circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side daytime running light circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B124B-4B	Left Daytime Running Light - Over temperature	Left side daytime running light internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B12FE-11	Fan - Circuit short to ground	Fan control circuit short circuit to ground	Refer to the electrical circuit diagrams and check the fan control circuit for short circuit to ground. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new fan assembly
B12FE-12	Fan - Circuit short to battery	Fan control circuit short circuit to power	Refer to the electrical circuit diagrams and check the fan control circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new fan assembly
B12FE-13	Fan - Circuit open	Fan control circuit open circuit, high resistance	Refer to the electrical circuit diagrams and check the fan control circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new fan assembly
B146B-11	Left Front Side Marker Lamp - Circuit short to ground	Front left side marker lamp circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side marker lamp circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B146B-12	Left Front Side Marker Lamp - Circuit short to battery	Front left side marker lamp circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side marker lamp circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B146B-13	Left Front Side Marker Lamp - Circuit open	Front left side marker lamp circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side marker lamp circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B146B-16	Left Front Side Marker Lamp - Circuit voltage below threshold	Front left side marker lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side marker lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B146B-19	Left Front Side Marker Lamp - Circuit current above threshold	Front left side marker lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front left side marker lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B146B-4B	Left Front Side Marker Lamp - Over temperature	Front left side marker lamp internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B146C-11	Right Front Side Marker Lamp - Circuit short to ground	Front right side marker lamp circuit short circuit to ground Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side marker lamp circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B146C-12	Right Front Side Marker Lamp - Circuit short to battery	Front right side marker lamp circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side marker lamp circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B146C-13	Right Front Side Marker Lamp - Circuit open	Front right side marker lamp circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side marker lamp circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B146C-16	Right Front Side Marker Lamp - Circuit voltage below threshold	Front right side marker lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side marker lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B146C-19	Right Front Side Marker Lamp - Circuit current above threshold	Front right side marker lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the front right side marker lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B146C-4B	Right Front Side Marker Lamp - Over temperature	Front right side marker lamp internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1C98-11	Left Corner Lamp Circuit - Circuit short to ground	Left side cornering lamp circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side cornering lamp circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1C98-12	Left Corner Lamp Circuit - Circuit short to battery	Left side cornering lamp circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side cornering lamp circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1C98-13	Left Corner Lamp Circuit - Circuit open	Left side cornering lamp circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side cornering lamp circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1C98-16	Left Corner Lamp Circuit - Circuit voltage below threshold	Left side cornering lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side cornering lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1C98-19	Left Corner Lamp Circuit - Circuit current above threshold	Left side cornering lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left side cornering lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1C98-4B	Left Corner Lamp Circuit - Over temperature	Left side cornering lamp internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1C99-11	Right Corner Lamp Circuit - Circuit short to ground	Right side cornering lamp circuit short circuit to ground Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side cornering lamp circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1C99-12	Right Corner Lamp Circuit - Circuit short to battery	Right side cornering lamp circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side cornering lamp circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1C99-13	Right Corner Lamp Circuit - Circuit open	Right side cornering lamp circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side cornering lamp circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1C99-16	Right Corner Lamp Circuit - Circuit voltage below threshold	Right side cornering lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side cornering lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1C99-19	Right Corner Lamp Circuit - Circuit current above threshold	Right side cornering lamp circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right side cornering lamp circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1C99-4B	Right Corner Lamp Circuit - Over temperature	Right side cornering lamp internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D00-11	Left Low Beam - Circuit short to ground	Left headlamp low beam circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp low beam circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D00-12	Left Low Beam - Circuit short to battery	Left headlamp low beam circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp low beam circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D00-13	Left Low Beam - Circuit open	Left headlamp low beam circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp low beam circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D00-16	Left Low Beam - Circuit voltage below threshold	Left headlamp low beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp low beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D00-19	Left Low Beam - Circuit current above threshold	Left headlamp low beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp low beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D00-4B	Left Low Beam - Over temperature	Left headlamp low beam internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D01-11	Right Low Beam - Circuit short to ground	Right headlamp low beam circuit short circuit to ground Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp low beam circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D01-12	Right Low Beam - Circuit short to battery	Right headlamp low beam circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp low beam circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D01-13	Right Low Beam - Circuit open	Right headlamp low beam circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp low beam circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D01-16	Right Low Beam - Circuit voltage below threshold	Right headlamp low beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp low beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D01-19	Right Low Beam - Circuit current above threshold	Right headlamp low beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp low beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D01-4B	Right Low Beam - Over temperature	Right headlamp low beam internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D02-11	Left High Beam Circuit - Circuit short to ground	Left headlamp high beam circuit short circuit to ground Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp high beam circuit for short circuit to ground
B1D02-12	Left High Beam Circuit - Circuit short to battery	Left headlamp high beam circuit short circuit to power Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp high beam circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D02-13	Left High Beam Circuit - Circuit open	Left headlamp high beam circuit open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp high beam circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D02-16	Left High Beam Circuit - Circuit voltage below threshold	Left headlamp high beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp high beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D02-19	Left High Beam Circuit - Circuit current above threshold	Left headlamp high beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Left headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the left headlamp high beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D02-4B	Left High Beam Circuit - Over temperature	Left headlamp high beam internal circuits are overheated Left headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new left headlamp assembly
B1D03-11	Right High Beam Circuit - Circuit short to ground	Right headlamp high beam circuit short circuit to ground	Refer to the electrical circuit diagrams and check the right headlamp high beam circuit for short circuit to ground Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D03-12	Right High Beam Circuit - Circuit short to battery	Right headlamp high beam circuit short circuit to power Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp high beam circuit for short circuit to power. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D03-13	Right High Beam Circuit - Circuit open	Right headlamp high beam circuit open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp high beam circuit for open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D03-16	Right High Beam Circuit - Circuit voltage below threshold	Right headlamp high beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp high beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D03-19	Right High Beam Circuit - Circuit current above threshold	Right headlamp high beam circuit short circuit to ground, short circuit to power, open circuit, high resistance Right headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the right headlamp high beam circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
B1D03-4B	Right High Beam Circuit - Over temperature	Right headlamp high beam internal circuits are overheated Right headlamp assembly internal failure	Allow the system to cool. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new right headlamp assembly
C1A03-12	Left Front Height Sensor - Circuit short to battery	Front left height sensor signal circuit short circuit to power	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Left Front Height Sensor (0x3B70). Incorrect high value above 4.8V Refer to the electrical circuit diagrams and check the front left height sensor signal circuit for short circuit to power
C1A03-14	Left Front Height Sensor - Circuit short to ground or open	Front left height sensor signal circuit short circuit to ground, open circuit, high resistance	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Left Front Height Sensor (0x3B70). Incorrect low value below 0.2V Refer to the electrical circuit diagrams and check the front left height sensor signal circuit for short circuit to ground, open circuit, high resistance
C1A04-12	Right Front Height Sensor - Circuit short to battery	Front right height sensor signal circuit short circuit to power	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Right Front Height Sensor (0x3B71). Incorrect high value above 4.8V Refer to the electrical circuit diagrams and check the front right height sensor signal circuit for short circuit to power
C1A04-14	Right Front Height Sensor - Circuit short to ground or open	Front right height sensor signal circuit short circuit to ground, open circuit, high resistance	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Right Front Height Sensor (0x3B71). Incorrect low value below 0.2V Refer to the electrical circuit diagrams and check the front right height sensor signal circuit for short circuit to ground, open circuit, high resistance
C1A05-12	Left Rear Height Sensor - Circuit short to battery	Rear left height sensor signal circuit short circuit to power	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Left Rear Height Sensor (0x3B72). Incorrect high value above 4.8V Refer to the electrical circuit diagrams and check the rear left height sensor signal circuit for short circuit to power
C1A05-14	Left Rear Height Sensor - Circuit short to ground or open	Rear left height sensor signal circuit short circuit to ground, open circuit, high resistance	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Left Rear Height Sensor (0x3B72). Incorrect low value below 0.2V Refer to the electrical circuit diagrams and check the rear left height sensor signal circuit for short circuit to ground, open circuit, high resistance
C1A06-12	Right Rear Height Sensor - Circuit short to battery	Rear right height sensor signal circuit short circuit to power	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Right Rear Height Sensor (0x3B73). Incorrect high value above 4.8V Refer to the electrical circuit diagrams and check the rear right height sensor signal circuit for short circuit to power
C1A06-14	Right Rear Height Sensor - Circuit short to ground or open	Rear right height sensor signal circuit short circuit to ground, open circuit, high resistance	Using the Jaguar Land Rover Approved Diagnostic Equipment, check datalogger signal - Right Rear Height Sensor (0x3B73). Incorrect low value below 0.2V Refer to the electrical circuit diagrams and check the rear right height sensor signal circuit for short circuit to ground, open circuit, high resistance
C1A68-11	Left Front Height Sensor Supply - Circuit short to ground	Front left height sensor supply circuit short circuit to power	Refer to the electrical circuit diagrams and check the front left height sensor supply circuit for short circuit to power
C1A68-12	Left Front Height Sensor Supply - Circuit short to battery	Front left height sensor supply circuit short circuit to ground, open circuit, high resistance	Refer to the electrical circuit diagrams and check the front left height sensor supply circuit for short circuit to ground, open circuit, high resistance
C1A69-11	Right Front Height Sensor Supply - Circuit short to ground	Front right height sensor supply circuit short circuit to power	Refer to the electrical circuit diagrams and check the front right height sensor supply circuit for short circuit to power
C1A69-12	Right Front Height Sensor Supply - Circuit short to battery	Front right height sensor supply circuit short circuit to ground, open circuit, high resistance	Refer to the electrical circuit diagrams and check the front right height sensor supply circuit for short circuit to ground, open circuit, high resistance
C1A70-11	Left Rear Height Sensor Supply - Circuit short to ground	Rear left height sensor supply circuit short circuit to power	Refer to the electrical circuit diagrams and check the rear left height sensor supply circuit for short circuit to power
C1A70-12	Left Rear Height Sensor Supply - Circuit short to battery	Rear left height sensor supply circuit short circuit to ground, open circuit, high resistance	Refer to the electrical circuit diagrams and check the rear left height sensor supply circuit for short circuit to ground, open circuit, high resistance
C1A71-11	Right Rear Height Sensor Supply - Circuit short to ground	Rear right height sensor supply circuit short circuit to power	Refer to the electrical circuit diagrams and check the rear right height sensor supply circuit for short circuit to power
C1A71-12	Right Rear Height Sensor Supply - Circuit short to battery	Rear right height sensor supply circuit short circuit to ground, open circuit, high resistance	Refer to the electrical circuit diagrams and check the rear right height sensor supply circuit for short circuit to ground, open circuit, high resistance
U0046-81	Vehicle Communication Bus C - Invalid serial data received	Unexpected data has been received via the high speed CAN network (chassis) High speed CAN network (chassis) fault	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network Using the Jaguar Land Rover approved diagnostic equipment, identify the module(s) responsible for the erroneous CAN signals. Check these modules for related DTCs and refer to the relevant DTC index
U0046-87	Vehicle Communication Bus C - Missing message	Unexpected data has been received via the high speed CAN network (chassis) High speed CAN network (chassis) fault	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network Using the Jaguar Land Rover approved diagnostic equipment, identify the module(s) responsible for the erroneous CAN signals. Check these modules for related DTCs and refer to the relevant DTC index
U0046-88	Vehicle Communication Bus C - Bus off	High speed CAN network (chassis) communication error High speed CAN network (chassis) circuit short circuit to ground, short circuit to power, open circuit, high resistance	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Repair circuits as required, clear the DTCs and retest
U0241-87	Lost Communication With Headlamp Control Module "A" - Missing message	Unexpected data has been received via the SUB-CAN network SUB-CAN network fault	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the SUB-CAN network
U0242-87	Lost Communication With Headlamp Control Module "B" - Missing message	Unexpected data has been received via the SUB-CAN network SUB-CAN network fault	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the SUB-CAN network
U0542-81	Invalid Data Received From Headlamp Control Module "A" - Invalid serial data received	Unexpected data has been received via the SUB-CAN network SUB-CAN network fault	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the SUB-CAN network
U0543-81	Invalid Data Received From Headlamp Control Module "B" - Invalid serial data received	Unexpected data has been received via the SUB-CAN network SUB-CAN network fault	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the SUB-CAN network
U200D-11	Control Module Output Power A - Circuit short to ground	Animated direction indicator circuit short circuit to ground	Refer to the electrical circuit diagrams and check the animated direction indicator circuit for short circuit to ground Check internal harness connections
U200D-15	Control Module Output Power A - Circuit short to battery or open	Animated direction indicator circuit short circuit to power, open circuit, high resistance	Refer to the electrical circuit diagrams and check the animated direction indicator circuit for short circuit to power, open circuit, high resistance Check internal harness connections
U200E-11	Control Module Output Power B - Circuit short to ground	Slave headlamp control module LIN circuit short circuit to ground	Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new slave headlamp assembly
U200E-15	Control Module Output Power B - Circuit short to battery or open	Slave headlamp control module LIN circuit short circuit to power, open circuit, high resistance	Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new slave headlamp assembly
U201A-51	Control Module Main Calibration Data - Not programmed	Headlamp control module is not configured correctly	Using the Jaguar Land Rover approved diagnostic equipment, re-configure the headlamp control module with the latest level software
U210A-11	Temperature Sensor - Circuit short to ground	Headlamp temperature sensor circuit short circuit to ground Headlamp temperature sensor internal failure	Refer to the electrical circuit diagrams and check the headlamp temperature sensor circuit for short circuit to ground Check internal harness connections
U210A-12	Temperature Sensor - Circuit short to battery	Headlamp temperature sensor circuit short circuit to power Headlamp temperature sensor internal failure	Refer to the electrical circuit diagrams and check the headlamp temperature sensor circuit for short circuit to power Check internal harness connections
U210A-13	Temperature Sensor - Circuit open	Headlamp temperature sensor circuit open circuit, high resistance Headlamp temperature sensor internal failure	Refer to the electrical circuit diagrams and check the headlamp temperature sensor circuit for open circuit, high resistance Check internal harness connections
U2300-56	Central Configuration - Invalid/incomplete configuration	Car configuration file mismatch with vehicle specification	NOTE: After updating the car configuration file, set the ignition to on and wait 30 seconds before clearing the DTCs Using the Jaguar Land Rover approved diagnostic equipment, check and up-date the car configuration file as necessary. Clear the DTCs and retest
U2301-88	Control Module Sub Network A - Bus off	SUB-CAN network communication error SUB-CAN network circuit short circuit to ground, short circuit to power, open circuit, high resistance	Refer to the electrical circuit diagrams and check the power and ground connections to the module Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the SUB-CAN network
U3000-49	Control Module - Internal electronic failure	Headlamp assembly internal failure	Refer to the electrical circuit diagrams and check the power and ground circuits to the module. Check internal harness connections Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new slave headlamp assembly