2010 JAGUAR XFR Relay

DTC Description Possible Cause Action B115B11 Driver Seat Heater
Driver seat heater supply circuit
- short to ground Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check driver
seat heater supply circuit for short to ground B115B15 Driver Seat Heater
Driver seat heater supply circuit
- short to power, open circuit Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check driver
seat heater supply circuit for short to power, open circuit B117513
Driver Door Ajar
Switch
Driver door ajar switch signal
circuit - open circuit Refer to the electrical circuit diagrams and check driver
door ajar switch signal circuit for open circuit B117613
Passenger Door
Ajar Switch
Passenger door ajar switch
signal circuit - open circuit Refer to the electrical circuit diagrams and check
passenger door ajar switch signal circuit for open circuit B117712
Screenwash Level
Switch
Screenwash level switch signal
circuit - short to power Refer to the electrical circuit diagrams and check
screenwash level switch signal circuit for short to power B11C013
Driver Side Rear
Door Ajar Switch
Left rear door ajar switch signal
circuit - open circuit Refer to the electrical circuit diagrams and check left rear
door ajar switch signal circuit for open circuit B11C113
Passenger Side
Rear Door Ajar
Switch
Right rear door ajar switch
signal circuit - open circuit Refer to the electrical circuit diagrams and check right
rear door ajar switch signal circuit for open circuit B122223
Master Lock/Unlock
Switch
Master lock or unlock switch
digital input circuit - signal
stuck low Refer to the electrical circuit diagrams and check master
lock and unlock switch digital input circuits for short to
ground, open circuit B123711
Gear Shift Module
Early Wake-up
Transmission shift module
wake-up control circuit - short
to ground Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
transmission shift module wake-up control circuit for
short to ground B123712
Gear Shift Module
Early Wake-up
Transmission shift module
wake-up control circuit - short
to power Refer to the electrical circuit diagrams and check
transmission shift module wake-up control circuit for
short to power B123713
Gear Shift Module
Early Wake-up
Transmission shift module
wake-up control circuit - open
circuit Refer to the electrical circuit diagrams and check
transmission shift module wake-up control circuit for
open circuit B123E13 Crank Enable
OK to crank signal circuit -
open circuit Refer to the electrical circuit diagrams and check OK to
crank signal circuit for open circuit B1A8596
Ambient Light
Sensor
Light sensor internal electronic
failure Check and install a new sensor as required B1C4513
Front Wiper Park
Position Switch
Windshield wiper motor park
switch signal circuit - open
circuit Refer to the electrical circuit diagrams and check
windshield wiper motor park switch signal circuit for open
circuit B1C4523
Front Wiper Park
Position Switch
Signal stuck low Refer to the electrical circuit diagrams and check front
wiper park position switch input circuit for short, open
circuit B1C7812 Powerwash Relay
Powerwash relay control circuit
- short to power Refer to the electrical circuit diagrams and check
powerwash relay control circuit for short to power B1C7814 Powerwash Relay
Powerwash relay control circuit
- short to ground, open circuit Refer to the electrical circuit diagrams and check
powerwash relay control circuit for short to ground, open
circuit B1C7911 Front Washer Pump
Screenwash pump control
circuit - short to ground Refer to the electrical circuit diagrams and check
screenwash pump control circuit for short to ground

DTC Description Possible Causes Action Write target SID
synchronisation error
following re-programming
Noise/EMC related error B100A63
Fuel Pump
Authorisation
RJB fault
Low speed CAN fault
Instrument cluster fault
Low battery voltage <9V Check power and ground supplies to RJB and instrument cluster.
Check CAN communications between RJB and instrument cluster.
Check battery is in fully charged and serviceable condition, refer
to the battery care manual B102612
Steering Column
Lock
Steering column lock
ground circuit - short to
power Refer to the electrical circuit diagrams and check steering column
lock ground circuit for short to power B108783 LIN Bus "A"
The checksum of the
received LIN frame is
incorrect Check the battery monitoring system and rear parking aid system
for DTCs and refer to relevant DTC Index B108786 LIN Bus "A"
The header of the LIN
message received is
incorrect Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Check the battery
monitoring system and rear parking aid system for DTCs and
refer to relevant DTC Index B108788 LIN Bus "A"
Battery monitoring
system LIN circuit - short
to ground, power Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check battery monitoring system LIN circuit
for short to ground, power B108A23 Start Button
Start/Stop switch digital
input signal circuit -
stuck low Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check Start/Stop switch digital input signal
circuit for short to ground B10A111 Trailer Tow
Detection
Trailer tow detection
digital input circuit -
short to ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check trailer tow detection digital input
circuit for short to ground B10AF12 Blower Fan Relay
High Side output not
driven - Diagnosis
feedback indicates output
is short to power Refer to the electrical circuit diagrams and check blower motor
supply circuit for short to power B10AF14 Blower Fan Relay
High Side output not
driven - Diagnosis
feedback indicates output
is short to ground, open
circuit Refer to the electrical circuit diagrams and check blower motor
supply circuit for short to ground, open circuit B10AF93 Blower Fan Relay
High Side output not
driven - Diagnosis
feedback indicates output
is at open load or short
to power Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check blower motor supply circuit for short
to power, open circuit B10DD11 Airbag Deployed
Airbag deployed digital
input signal circuit - short
to ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check airbag deployed digital input signal
circuit for short to ground B10DD15 Airbag Deployed
Airbag deployed digital
input signal circuit - short
to power, open circuit Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check airbag deployed digital input signal
circuit for short to power, open circuit B10DD38 Airbag Deployed
Signal frequency incorrect Check the RCM for related DTCs and refer to the relevant DTC
Index B10DE11
Low Fuel Warning
Switch
Diesel run-dry switch
analogue input circuit -
short to ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check diesel run-dry switch analogue input
circuit for short to ground www.JagDocs.com

DTC Description Possible Causes Action B111E13 Boot/Trunk Lamps
Luggage compartment
lamp control circuit -
open circuit Refer to the electrical circuit diagrams and check luggage
compartment lamp control circuit for open circuit B111E-15 Boot/Trunk Lamps
- circuit short to
battery or open
Luggage compartment
lamp inoperative
Luggage compartment
lamp control circuit -
short circuit to power,
open circuit, high
resistance
Refer to the electrical circuit diagrams and check luggage
compartment lamp control circuit for short circuit to
power, open circuit, high resistance. Repair wiring harness
as required. Clear DTC and retest B112312
Restraints
Ignition Relay
High Side output not
driven - diagnosis
feedback indicates output
is short to power Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check restraints ignition relay output for
short to power B112314
Restraints
Ignition Relay
High Side output not
driven - diagnosis
feedback indicates output
is short to ground, open
circuit Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check restraints ignition relay output for
short to ground, open circuit B112393
Restraints
Ignition Relay
High Side output not
driven - diagnosis
feedback indicates output
is at open load or short
to power Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check restraints ignition relay output for
open load or short to power B112411
Lamp Fade
Control
Interior lamp fade control
circuit - short to ground Refer to the electrical circuit diagrams and check interior lamp
fade control circuit for short to ground B112412
Lamp Fade
Control
Interior lamp fade control
circuit - short to power Refer to the electrical circuit diagrams and check interior lamp
fade control circuit for short to power B113C12
Hazard Switch
Illumination
Hazard switch
illumination control
circuit - short to power Refer to the electrical circuit diagrams and check hazard switch
illumination control circuit for short to power B113C14
Hazard Switch
Illumination
Hazard switch
illumination control
circuit - short to ground,
open circuit Refer to the electrical circuit diagrams and check hazard switch
illumination control circuit for short to ground, open circuit B113E12
External
Boot/Trunk
Release Switch
External luggage
compartment lid release
switch digital input circuit
- short to power Refer to the electrical circuit diagrams and check external
luggage compartment lid release switch digital input circuit for
short to power B113E23
External
Boot/Trunk
Release Switch
External luggage
compartment lid release
switch digital input circuit
- signal stuck low Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check external luggage compartment lid
release switch digital input circuit for short to ground B11D949 Vehicle Battery
Vehicle battery
damaged/worn out Check battery is in fully charged and serviceable condition using
the Midtronics battery tester and the battery care manual B11DB49
Battery
Monitoring
Module
Internal electronic failure Suspect the battery monitoring module. Check and install a new
module as required, refer to the new module/component
installation note at the top of the DTC Index B11DB87
Battery
Monitoring
Module
Battery monitoring
module connector
dis-connected/poor
connection Battery
monitoring
module to RJB LIN circuit
- open circuit Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. If additional DTCs
B108783, B108786, B108787 are logged, suspect the RJB. Check
and install a new RJB as required, refer to the new
module/component installation note at the top of the DTC Index.
If additional DTCs B108783, B108786, B108787 are NOT logged,
check for good/clean contact at battery monitoring module

DTC Description Possible Causes Action B124812
Right Rear Turn
Indicator
Right rear turn signal
lamp control circuit -
short to power Refer to the electrical circuit diagrams and check right rear turn
signal lamp control circuit for short to power B124813
Right Rear Turn
Indicator
Right rear turn signal
lamp control circuit -
open circuit Refer to the electrical circuit diagrams and check right rear turn
signal lamp control circuit for open circuit B1248-15
Right Rear Turn
Indicator - circuit
short to battery
or open
Right rear turn signal
lamp control circuit -
short circuit to power,
open circuit, high
resistance
Refer to electrical circuit diagrams and check right rear
turn signal lamp control circuit for short circuit to power,
open circuit, high resistance. Repair wiring harness as
required. Clear DTC and retest B126113
Fuel Flap/Door
Release Switch
Fuel filler flap digital
input signal circuit - open
circuit Refer to the electrical circuit diagrams and check fuel filler flap
digital input signal circuit for open circuit B1A7911 Rear Fog Lamp
Rear fog lamp control
circuit - short to ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check rear fog lamp control circuit for short
to ground B1A7912 Rear Fog Lamp
Rear fog lamp control
circuit - short to power Refer to the electrical circuit diagrams and check rear fog lamp
control circuit for short to power B1A7913 Rear Fog Lamp
Rear fog lamp control
circuit - open circuit Refer to the electrical circuit diagrams and check rear fog lamp
control circuit for open circuit B1C5512 Horn Relay
Horn control circuit -
short to power Refer to the electrical circuit diagrams and check horn control
circuit for short to power B1C5514 Horn Relay
Horn control circuit -
short to ground, open
circuit Refer to the electrical circuit diagrams and check horn control
circuit for short to ground, open circuit B1C8312 Rear Defog Relay
High Side output not
driven - diagnosis
feedback indicates output
is short to power Refer to the electrical circuit diagrams and check heated rear
window power supply circuit for short to power B1C8314 Rear Defog Relay
High Side output not
driven - diagnosis
feedback indicates output
is short to ground, open
circuit Refer to the electrical circuit diagrams and check heated rear
window power supply circuit for short to ground, open circuit B1C8393 Rear Defog Relay
High Side output not
driven - diagnosis
feedback indicates output
is at open load or short
to power Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check heated rear window power supply
circuit for open load and short to power B1C9112
Fuel Flap/Door
Lock Relay Coil
Circuit
Fuel filler flap locking
motor control circuit -
short to power Refer to the electrical circuit diagrams and check fuel filler flap
locking motor control circuit for short to power B1C9114
Fuel Flap/Door
Lock Relay Coil
Circuit
Fuel filler flap locking
motor control circuit -
short to ground, open
circuit Refer to the electrical circuit diagrams and check fuel filler flap
locking motor control circuit for short to ground, open circuit B1D3512 Hazard Switch
Hazard warning lamp
switch digital input circuit
- short to power Refer to the electrical circuit diagrams and check hazard warning
lamp switch digital input circuit for short to power

DTC Description Possible Causes Action B1163-15
Left Mirror Heater
Output Short To Power -
Circuit short to battery
or open
Short to power or open circuit
Refer to the electrical circuit diagrams and
test left mirror heater output circuit for short
to power or open circuit B1164-11
Right Mirror Heater
Output Short To Ground
- Circuit short to ground
Short to ground
Refer to the electrical circuit diagrams and
test right mirror heater output circuit for
short to ground B1164-15
Right Mirror Heater
Output Short To Power -
Circuit short to battery
or open
Short to power or open circuit
Refer to the electrical circuit diagrams and
test right mirror heater output circuit for
short to power or open circuit B1165-11
Left Front Puddle Lamp
Output Short To Ground
- Circuit short to ground
Short to ground
Refer to the electrical circuit diagrams and
test left front puddle lamp output circuit for
short to ground B1165-15
Left Front Puddle Lamp
Output Open Load Or
Short To Power - Circuit
short to battery or open
Short to power or open circuit
Refer to the electrical circuit diagrams and
test left front puddle lamp output circuit for
short to power or open circuit B1166-11
Right Front Puddle Lamp
Output Short To Ground
- Circuit short to ground
Short to ground
Refer to the electrical circuit diagrams and
test right front puddle lamp output circuit
for short to ground B1166-15
Right Front Puddle Lamp
Output Open Load Or
Short To Battery -
Circuit short to battery
or open
Short to power or open circuit
Refer to the electrical circuit diagrams and
test right front puddle lamp output circuit
for short to power or open circuit B1175-13
Driver Door Ajar Switch -
Circuit open
Driver door ajar switch signal
circuit - open circuit
Refer to the electrical circuit diagrams and
check driver door ajar switch signal circuit
for open circuit B1176-13
Passenger Door Ajar
Switch - Circuit open
Passenger door ajar switch
signal circuit - open circuit
Refer to the electrical circuit diagrams and
check passenger door ajar switch signal
circuit for open circuit B117C-07
Rear Power Window Up -
Mechanical failures
Set when window is reversed
during window up due to
mechanical problems, window
channel restriction preventing
window closure or Window
mechanism fault
Check for mechanical problems with the
window operation. Check for obstructions in
the window channels and that the glass is
not restricted in the full range of travel B117C-72
Rear Power Window Up -
Actuator stuck open
Door module internal relay
sticking open
Renew the relevant rear door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117C-73
Rear Power Window Up -
Actuator stuck closed
Door module internal relay
sticking closed
Renew the relevant rear door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117C-92
Rear Power Window Up -
Performance or incorrect
operation
Set when auto window up was
interrupted (e.g. by pressing
local switch)
Check the window operation. Clear the DTC
and retest B117D-72
Rear Power Window
Down - Actuator stuck
open
Door module internal relay
sticking open
Renew the relevant rear door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117D-73
Rear Power Window
Down - Actuator stuck
closed
Door module internal relay
sticking closed
Renew the relevant rear door module. Refer
to the warranty policy and procedures
manual if a module is suspect

DTC Description Possible Causes Action B117E-07 Front Power Window Up
- Mechanical failures
Set when window is reversed
during window up due to
mechanical problems, window
channel restriction preventing
window closure or Window
mechanism fault
Check for mechanical problems with the
window operation. Check for obstructions in
the window channels and that the glass is
not restricted in the full range of travel B117E-72 Front Power Window Up
- Actuator stuck open
Door module internal relay
sticking open
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117E-73 Front Power Window Up
- Actuator stuck closed
Door module internal relay
sticking closed
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117E-92 Front Power Window Up
- Performance or
incorrect operation
Set when auto window up was
interrupted (e.g. by pressing
local switch)
Check the window operation. Clear the DTC
and retest B117F-72
Front Power Window
Down - Actuator stuck
open
Door module internal relay
sticking open
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117F-73
Front Power Window
Down - Actuator stuck
closed
Door module internal relay
sticking closed
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B1189-29
Front Window Position
Sensor - Signal invalid
Missing signal from position
sensor 1 or 2
Sensor circuit fault
Position sensor fault
Refer to the electrical circuit diagrams and
check the position sensor circuit between
the door module and window motor. Repair
as necessary. If the problem persists, renew
the window motor B118A-29
Rear Window Position
Sensor - Signal invalid
Missing signal from position
sensor 1 or 2
Sensor circuit fault
Position sensor fault
Refer to the electrical circuit diagrams and
check the position sensor circuit between
the door module and window motor. Repair
as necessary. If the problem persists, renew
the window motor B11C0-13
Driver Side Rear Door
Ajar Switch - Circuit
open
Left rear door ajar switch signal
circuit - open circuit
Refer to the electrical circuit diagrams and
check left rear door ajar switch signal circuit
for open circuit B11C1-13
Passenger Side Rear
Door Ajar Switch -
Circuit open
Right rear door ajar switch
signal circuit - open circuit
Refer to the electrical circuit diagrams and
check right rear door ajar switch signal
circuit for open circuit B11D1-83
LIN Bus "C" - Value of
signal protection
calculation incorrect
LIN Bus checksum error; driver
switchpack internal fault
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the driver
door window switch and the door module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the driver door
window switch B11D1-86
LIN Bus "C" - Signal
invalid
LIN Bus header error; driver
switchpack internal fault
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the driver
door window switch and the door module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the driver door
window switch B11D1-87
LIN Bus "C" - Missing
message
Slave node communication
missing; driver switchpack
internal fault
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the driver
door window switch and the door module.
Check the connectors for integrity and www.JagDocs.com

Check the Starter Relay circuit.


NOTE: On petrol engine variants, due to Smart Start, both sides of Relay Coil are switched directly from ECM (If
conditions correct). On diesel engine variants the low side only is switched directly from the ECM.
Check that the Steering Column Lock correctly operates and the steering wheel can turn freely.

Check that the High Speed CAN network is not malfunctioning, i.e. the CAN circuit is open or short circuit. This would mean
that the instrument cluster and ECM would be unable to communicate resulting in no Challenge being performed to enable the
ECM. This would be supported by LED Flash Code 24, see PATS Fault Code Table.

Also check the CAN network between the ABS module and the CJB. The CJB uses the CAN_BrakePressureTMC signal to
determine if the brake pedal has been pressed in order to allow an engine crank. The CJB uses a value of 0x05, if the CJB sees
a value less than this, it will not enable the Crank Request Output.
Engine cranks but will not start

If the Engine is cranking it means that the ECM has passed the authorisation required with the Instrument Cluster. If this
authorisation failed, the ECM would not engage the starter relay. This could be confirmed by verifying the PATS LED prove out
(illuminated solid for 3 seconds) or by reading DTCs from the instrument cluster and ECM.

In this case, the fuel pump circuit should be verified. The Fuel Pump Delivery Module (FPDM), which is supplied via the RJB
(authentication required with the instrument cluster) and controlled by the ECM, supplies the fuel pump.
In all cases of suspected non-start issues, the most logical failure modes should be eliminated first. i.e.

1. Check all relevant supplies and grounds to the relevant modules listed herein.
2. Note any unusual behaviour from other systems/functionality.
3. Note any functions that are not operating as expected.
PATS Fault Codes

For the various PATS modes/faults listed in the table , the instrument cluster will store a DTC and indicate this to the customer
during the detection period defined in the 'when logged' column, by illuminating the indicator as described for 60 seconds and
then flashing the LED 10 times as appropriate. The indication will stop immediately the ignition status is set to OFF any time
during the fault indication sequence. Up to 4 DTCs could be stored per key read sequence (1-10 read attempts). No DTCs will be
stored until all retry attempts are complete. Only the highest priority fault code will be flashed.

To determine the fault code from the LED: The LED will flash initially ten times with 1.5 seconds between. The LED will remain
OFF for 2.5 seconds then flash a number of times with 0.5 seconds between (the number of times the LED flashes represents
the first digit of the code), the LED will remain OFF for 1.5 seconds then flash a number of times with 1.5 seconds between
(the number of times the LED flashes represents the second digit of the code).

The PATS LED will be commanded on as shown under 'indication'. Normal PATS operations are complete within 400ms of the
ignition switch transition from OFF to ON or START, worst case for ECM communication problems will be less than 2 seconds. If
PATS is not complete during the 2 seconds the ECM will terminate PATS and await the next ignition ON or START event. PATS
faults will be indicated via the LED as soon as possible and will terminate the LED prove out. At ignition OFF all previous
flashing will cease and the perimeter anti-theft system will control the LED when the vehicle is locked and armed.

PATS Fault Code Table


Mode of Operation/Fault

When Logged
Ignition
Status

DTC LED
Fault
Code

Indication Prove out N/A Transition
from OFF to
ON N/A N/A
3 Seconds of steady
illumination Perimeter Anti-theft Control N/A OFF -
Vehicle
locked and
armed N/A N/A
Off or 0.5Hz flashing
at 5% duty cycle ±
20% until Off Start Control Unit already programmed Key Insert Any B1B0105 N/A No Indication Start Control Unit status = invalid response Key Insert Any B1B0167 N/A No Indication Start Control Unit programming error Key Insert Any B1B0151 N/A No Indication Start Control Unit challenge response error Key Insert OFF B1B0162 N/A No Indication Key Programming timer expired or Key Auth Timer expired Key Insert Any B1B0187 N/A No Indication Transponder challenge response error Key Insert Any B1B0164 N/A No Indication Transponder keys stored below minimum number required B&A/Dealer Any B1B0100 N/A No Indication Transponder not programmed B&A/Dealer Any B1B0155 N/A No Indication If the instrument cluster sends a 'theft' key status
to the ECM or the ECM returns a status message
containing the data 'Disabled/Theft', the instrument
cluster will set this DTC EMS CAN
communication OFF to ON B1B3364 16
60 seconds of 4Hz
flashing at 50% duty
cycle followed by fault
code 16 flashing 10
times

Rear View Mirrors - Rear View Mirrors
Diagnosis and Testing

Principles of Operation Published: 11-May-2011

For a detailed description of the rear view mirrors and systems, refer to the relevant Description and Operation sections in the
workshop manual. REFER to: (501-09 Rear View Mirrors)

Rear View Mirrors (Description and Operation), Rear View Mirrors (Description and Operation), Rear View Mirrors (Description and Operation).
Inspection and Verification


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.
1. Verify the customer concern.
2. Visually inspect for obvious signs of damage and system integrity.

Visual Inspection
Mechanical Electrical
Exterior rear view mirror glass
Fuse(s)
Relay(s)
Wiring Harness
Electrical connector(s)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step.
4. If the cause is not visually evident, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.

DTC Index


CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part
number 3548-1358-00.
NOTES:


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 five digit codes. Match the five digits from the scan
tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give additional information
read by the manufacturer approved diagnostic system).


When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places,
and with an up-to-date calibration certificate. When testing resistance always take the resistance of the DMM 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 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.


When carrying out repair/diagnosis of the system, on removal of the front or rear bumper inspect the sensor connectors
to ensure they were correctly latched and check fly leads for signs of chaffing or trapped wires.