DIAGNOSIS AND TESTING

Overview

The mirror operation is controlled by three different modules, the automatic temperature control module, the body control module and the seat memory control module.

Mirror heating is controlled by the automatic temperature control module, so there will be some cross-over with the climate control section as far as diagnostic trouble codes (DTCs) are concerned.

For information on the description and operation of the mirrors, refer to the relevant section of the workshop manual.

Inspection and Verification

Verify the customer concern.

Visually inspect for obvious mechanical or electrical faults.

Visual inspection

Mechanical	Electrical
Door mirror switch condition and installation Door mirror condition and installation	Battery condition and state of charge Fuses Battery junction box (BJB) - fuse 12E Battery junction box (BJB) - fuse 16E Central junction box (CJB) - fuse 5P Central junction box (CJB) - fuse 16P Central junction box (CJB) - fuse 33P Central junction box (CJB) - fuse 46P Central junction box (CJB) - fuse 69P Harnesses and connectors Washer jet and mirror heater relay Memory control module(s) Door mirror switch(es) Door mirror motor(s) Ignition switch Battery junction box (BJB) Central junction box (CJB) Automatic temperature control module Local interconnect network (LIN) circuit

Mechanical

Electrical

Door mirror switch condition and installation
Door mirror condition and installation

Battery condition and state of charge
Fuses
- Battery junction box (BJB) - fuse 12E
- Battery junction box (BJB) - fuse 16E
- Central junction box (CJB) - fuse 5P
- Central junction box (CJB) - fuse 16P
- Central junction box (CJB) - fuse 33P
- Central junction box (CJB) - fuse 46P
- Central junction box (CJB) - fuse 69P
Harnesses and connectors
Washer jet and mirror heater relay
Memory control module(s)
Door mirror switch(es)
Door mirror motor(s)
Ignition switch
Battery junction box (BJB)
Central junction box (CJB)
Automatic temperature control module
Local interconnect network (LIN) circuit

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step

Use the approved diagnostic system or a scan tool to retrieve any DTCs before moving onto the symptom chart or DTC index.

Symptom chart

Symptom	Possible causes	Action
Mirrors do not defrost/washer jets freeze	Fuse fault Washer jet and mirror heater relay fault Circuit fault: high resistance Circuit fault: short circuit to ground Automatic temperature control module fault	Check the fuses. Check the operation of the washer jet and mirror heater relay (see the visual inspection). Check the washer jet and mirror heater circuits. Refer to the electrical guides. Refer to the warranty policy and procedures manual if a module is suspect.
Mirrors inoperative in one or more directions	Mechanical fault Switch fault Motor fault Circuit fault: high resistance Circuit fault: short circuit to ground	Operate the mirror switch and listen for the motor(s). If the motor(s) can be heard, check the mechanical condition of the mirror and linkages. Rectify as necessary. Check for DTCs indicating a switch, motor or circuit fault.
Memorized mirror position is not resumed	Battery voltage below 10.5 volts Position not stored Switch operated during "one-touch" memory recall EEPROM fault	Before condemning a memory component, check the function from the switch and refer to the symptoms above. Make sure the battery voltage is adequate. Make sure that the desired position is correctly stored. Make sure that the memory store/recall procedure is being followed. Refer to the relevant section of the workshop manual.
'Lazy entry' function inoperative	Remote transmitter fault (battery, transmitter programming, etc) See list for "position is not resumed"	Check that the remote transmitter operates the central locking, etc. If it does, the fault is not with the transmitter. Refer to "position is not resumed".

DTC index

NOTES:

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).
For a full list of climate control DTCs, refer to section 412-00, Climate Control Section of the workshop manual.

DTC	Description	Possible causes	Action
B1B8541	Memory Control Module	Seat module error	Renew the seat memory control module. Refer to the warranty policy and procedures manual if a module is suspect.
B1B8549	Memory Control Module	Seat module error	If no customer complaint issue exists with seat operation, no action necessary, clear/ignore DTC. If seat functionality is affected, renew module. Refer to the warranty policy and procedures manual if a module is suspect.
B1B8587	Memory Control Module	No response from seat memory control module	Seat memory is not installed to all variants (optional). Fault logging is inhibited by the CCF, but an incorrectly configured CCF could give erroneous DTC logging. Repair action only required for vehicles with sunroof installed. Where necessary refer to the lost communication statement at the start of this table.
B1C0273	Memory Store Switch	Seat memory store switch stuck Seat memory store switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the seat switch pack for short to ground. Check the switch operation, renew as necessary.
B1C0373	Memory #1 Switch	Seat memory #1 switch stuck Seat memory #1 switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the seat switch pack for short to ground. Check the switch operation, renew as necessary.
B1C0473	Memory #2 Switch	Seat memory #2 switch stuck Seat memory #2 switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the seat switch pack for short to ground. Check the switch operation, renew as necessary.
B1C0573	Memory #3 Switch	Seat memory #3 switch stuck Seat memory #3 switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the seat switch pack for short to ground. Check the switch operation, renew as necessary.
B1C0601	Driver Up/Down And Common Mirror Motor Circuit	Mirror motor up/down circuit open or short circuit Mirror up/down motor failure	Refer to the electrical guides and check the circuit between the memory control module and the door mirror for open circuit or short to ground. Check the mirror operation, renew as necessary.
B1C0701	Driver Left/Right and Right-hand Up/Down Mirror Motor Circuit	Mirror motor left/right circuit open or short circuit Mirror left/right motor failure	Refer to the electrical guides and check the circuit between the memory control module and the door mirror for open circuit or short to ground. Check the mirror operation, renew as necessary.
B1C0801	Passenger Left/Right And Common Mirror Motor Circuit	Mirror motor left/right circuit open or short circuit Mirror left/right motor failure	Refer to the electrical guides and check the circuit between the memory control module and the door mirror for open circuit or short to ground. Check the mirror operation, renew as necessary.
B1C0973	Driver Left/Right Mirror Motor Circuit	Software error (DTC can be logged when the mirror is moved manually) Mirror motor left/right circuit open or short circuit Mirror left/right motor failure	If no customer complaint issue exists with mirror operation, no action necessary, clear/ignore DTC. If mirror functionality is incorrect, refer to the electrical guides and check the circuit for open of short to ground. Renew the mirror motor/mirror as necessary.
B1C1073	Driver Up/Down Mirror Motor Circuit	Software error (DTC can be logged when the mirror is moved manually) Mirror motor up/down circuit open or short circuit Mirror up/down motor failure	If no customer complaint issue exists with mirror operation, no action necessary, clear/ignore DTC. If mirror functionality is incorrect, refer to the electrical guides and check the circuit for open of short to ground. Renew the mirror motor/mirror as necessary.
B1C1173	Passenger Left/Right Mirror Motor Circuit	Software error (DTC can be logged when the mirror is moved manually) Mirror motor left/right circuit open or short circuit Mirror left/right motor failure	If no customer complaint issue exists with mirror operation, no action necessary, clear/ignore DTC. If mirror functionality is incorrect, refer to the electrical guides and check the circuit for open of short to ground. Renew the mirror motor/mirror as necessary.
B1C1273	Passenger Up/Down Mirror Motor Circuit	Software error (DTC can be logged when the mirror is moved manually) Mirror motor up/down circuit open or short circuit Mirror up/down motor failure	If no customer complaint issue exists with mirror operation, no action necessary, clear/ignore DTC. If mirror functionality is incorrect, refer to the electrical guides and check the circuit for open of short to ground. Renew the mirror motor/mirror as necessary.
B1C133A	Driver Up/Down Mirror Motor Feedback Circuit	Door mirror motor moved beyond expected range Sensor circuit open or short circuit Door mirror motor position sensor fault	Refer to the electrical guides and check the harness and connections between the seat memory module and the mirror. Repair/renew as necessary. Check/renew the mirror motor/assembly.
B1C143A	Driver Left/Right Mirror Motor Feedback Circuit	Door mirror motor moved beyond expected range Sensor circuit open or short circuit Door mirror motor position sensor fault	Refer to the electrical guides and check the harness and connections between the seat memory module and the mirror. Repair/renew as necessary. Check/renew the mirror motor/assembly.
B1C153A	Passenger Up/Down Mirror Motor Feedback Circuit	Door mirror motor moved beyond expected range Sensor circuit open or short circuit Door mirror motor position sensor fault	Refer to the electrical guides and check the harness and connections between the seat memory module and the mirror. Repair/renew as necessary. Check/renew the mirror motor/assembly.
B1C163A	Passenger Left/Right Mirror Motor Feedback Circuit	Door mirror motor moved beyond expected range Sensor circuit open or short circuit Door mirror motor position sensor fault	Refer to the electrical guides and check the harness and connections between the seat memory module and the mirror. Repair/renew as necessary. Check/renew the mirror motor/assembly.
B1C1773	Driver Mirror Left Switch	Mirror left switch stuck Mirror left switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C1873	Driver Mirror Right Switch	Mirror right switch stuck Mirror right switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C1973	Driver Mirror Up Switch	Mirror up switch stuck Mirror up switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C2073	Driver Mirror Down Switch	Mirror down switch stuck Mirror down switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C2173	Passenger Mirror Left Switch	Mirror left switch stuck Mirror left switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C2273	Passenger Mirror Right Switch	Mirror right switch stuck Mirror right switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C2373	Passenger Mirror Up Switch	Mirror up switch stuck Mirror up switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.
B1C2473	Passenger Mirror Down Switch	Mirror down switch stuck Mirror down switch circuit short to ground	Refer to the electrical guides and check the wiring between the memory control module and the mirror switch pack for short to ground. Check the switch operation, renew as necessary.

Published: 11-May-2011

2007.0 Range Rover Sport (LS), 501-09

Rear View Mirrors (G830983)