2010 JAGUAR XFR Module

Published: 12-May-2014
General Information - Diagnostic Trouble Code (DTC) Index DTC: Central Junction Box (CJB)
Description and Operation

Central Junction Box (CJB)


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.
NOTES:


If a 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 programme is in operation, prior to the installation of a new
module/component.


Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to
the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the
manufacturer-approved diagnostic system).


When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with
an up-to-date calibration certificate. 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 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.


Check DDW 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 table below lists all Diagnostic Trouble Codes (DTCs) that could be logged in the Central Junction Box (CJB). For additional
diagnosis and testing information, refer to the relevant Diagnosis and Testing section in the workshop manual.
For additional information, refer to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

DTC Description Possible Causes Action B00D5-11
Restraint System
Passenger Disable
Indicator - Circuit
short to ground
PAD lamp supply circuit -
short to ground
Refer to the electrical circuit diagrams and check
PAD lamp supply circuit for short to ground B00D5-12
Restraint System
Passenger Disable
Indicator - Circuit
short to battery
PAD lamp supply circuit -
short to power
Refer to the electrical circuit diagrams and check
PAD lamp supply circuit for short to power B00D5-13
Restraint System
Passenger Disable
Indicator - Circuit open
PAD lamp supply circuit -
open circuit
Refer to the electrical circuit diagrams and check
PAD lamp supply circuit for open circuit B1009-51 Ignition Authorisation
- Not programmed
Faulty instrument cluster
Target SID
re-synchronisation error
following programming
CAN fault
Check ignition, power and ground supplies to CJB
and instrument cluster. Re-synchronize ID by
re-configuring the instrument cluster as a new
module. Check CAN communications between
instrument cluster and tester B1009-62 Ignition Authorisation
- Signal compare
failure
Low speed CAN fault
CJB fault
Instrument cluster fault
Incorrect module installed
(CJB/Instrument cluster)
Target SID synchronisation
Check CAN communications between CJB and
instrument cluster. Check ignition, power and
ground supplies to CJB and instrument cluster.
Confirm correct module is installed.
Re-synchronise ID by re-configuring the
instrument cluster as a new module. Check CAN

DTC Description Possible Causes Action error following
re-programming
Noise/EMC related error network for interference/EMC related issues B1009-63 Ignition Authorisation
- Circuit/component
protection time-out
CJB fault
Low speed CAN fault
Instrument cluster fault
Low battery voltage <9V
Check Power and Ground supplies to CJB and
instrument cluster. Check CAN communications
between CJB and instrument cluster. Check
battery is in fully charged and serviceable
condition, refer to the battery care manual B1009-64 Ignition Authorisation
- Signal plausibility
failure
CJB fault
Low speed CAN fault
Instrument cluster fault
Check power and ground supplies to CJB and
instrument cluster. Check CAN communications
between CJB and instrument cluster B102B-67
Passive Key - Signal
incorrect after event
CJB fault
Low speed CAN fault
Remote Keyless Entry (RKE)
module fault
Write target SID
synchronisation error
following re-programming
Check power and ground supplies to CJB and RKE
module. Check CAN communications between CJB
and RKE module. Re-synchronise ID by
re-configuring the RKE module as a new module B102B-87
Passive Key - Missing
message
CJB fault
Low speed CAN fault
RKE module fault
Key fob battery low/battery
contact issue
Interference from other RF
signal
EMC/noise
Receiver fault
Receiver not programmed
correctly
Serial communications fault
(between receiver and RKE
module)
Key fault
Passive antenna fault
Confirm placement of key
within vehicle
Check power and ground supplies to CJB, RKE
module and receiver. Check CAN communications
between CJB and instrument cluster. Check key
fob battery. Confirm vehicle surroundings, move
vehicle. Check CAN network for interference/EMC
related issues. Disconnect battery, then
re-connect - confirm operation by re-programming
keys. Check serial circuit between receiver and
RKE module. Confirm spare key works. Refer to
the electrical circuit diagrams and test circuits to
all 3 antennas. Check whereabouts of key B1084-13
Boot/Trunk Motor
Close Switch - Circuit
open
Trunk latch open signal
circuit - open circuit
Refer to the electrical circuit diagrams and check
trunk latch open signal circuit for open circuit B1087-83
LIN Bus "A" - Value of
signal protection
calculation incorrect
Checksum of the received
LIN frame from battery
backed sounder, roof header
console, and/or rain/light
sensor is incorrect
Check operation of rain/light sensor by covering
sensor or applying water to screen, install a new
sensor as required B1087-88 LIN Bus "A" - Bus off
Bus off. Battery backed
sounder, roof header
console, and/or rain/light
sensor LIN circuit - short to
ground, power
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check battery backed sounder, roof header
console, and rain/light sensor LIN circuit for short
to ground, power B108A-11
Start Button - Circuit
short to ground
Start/Stop switch analogue
input circuits 1 or 2 - short
to ground
Refer to the electrical circuit diagrams and check
Start/Stop switch analogue input circuits 1 and 2
for short to ground B108A-12
Start Button - Circuit
short to battery
Start/Stop switch analogue
input circuits 1 or 2 - short
to power
Refer to the electrical circuit diagrams and check
Start/Stop switch analogue input circuits 1 and 2
for short to power B1095-12
Wiper On/Off Relay -
Circuit short to battery
Wiper On/Off relay control
circuit - short to power
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check wiper On/Off relay control circuit for www.JagDocs.com

DTC Description Possible Causes Action short to power B1095-14
Wiper On/Off Relay -
Circuit short to ground
or open
Wiper On/Off relay control
circuit - short to ground,
open circuit
Refer to the electrical circuit diagrams and check
wiper On/Off relay control circuit for short to
ground, open circuit B1096-12 Wiper High/Low Relay
- Circuit short to
battery
Wiper Fast/Slow relay
control circuit - short to
power
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check wiper Fast/Slow relay control circuit for
short to power B1096-14 Wiper High/Low Relay
- Circuit short to
ground or open
Wiper Fast/Slow relay
control circuit - short to
ground, open circuit
Refer to the electrical circuit diagrams and check
wiper Fast/Slow relay control circuit for short to
ground, open circuit B1097-12
Heated Windshield
Relay - Circuit short to
battery
Heated windshield relay
control circuit - short to
power
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check heated windshield relay control circuit
for short to power B1097-14
Heated Windshield
Relay - Circuit short to
ground or open
Heated windshield relay
control circuit - short to
ground, open circuit
Refer to the electrical circuit diagrams and check
heated windshield relay control circuit for short to
ground, open circuit B10A6-12
Main Light Switch -
Circuit short to battery
Master light switch signal
from roof header console
circuit - short to power
Refer to the electrical circuit diagrams and check
master light switch signal from roof header
console circuit for short to power B10A6-23
Main Light Switch -
Signal stuck low
Master light switch signal
from roof header console
signal stuck low. Switch is
read as ON for too long a
time
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check master light switch signal from roof
header console for short to ground B10AD-09
Rain Sensor -
Component failures
Component failures
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Suspect the rain/light sensor, check and
install a new sensor as required B10AD-11
Rain Sensor - Circuit
short to ground
Rain/light sensor power
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 rain/light sensor power circuit for short
to ground B10AD-96
Rain Sensor -
Component internal
failure
Component internal failure
Suspect the rain/light sensor, check and install a
new sensor as required B10E5-11
PCM Wake-up Signal -
Circuit short to ground
ECM wake-up signal circuit -
short to ground
Refer to the electrical circuit diagrams and check
ECM wake-up signal circuit for short to ground B10E5-12
PCM Wake-up Signal -
Circuit short to battery
ECM wake-up signal circuit -
short to power
Refer to the electrical circuit diagrams and check
ECM wake-up signal circuit for short to power B10E5-13
PCM Wake-up Signal -
Circuit open
ECM wake-up signal circuit -
open circuit
Refer to the electrical circuit diagrams and check
ECM wake-up signal circuit for open circuit B10F1-11
Key In Switch - Circuit
short to ground
Keyless vehicle module, key
IN status 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 keyless vehicle module, key IN status
circuit for short to ground

DTC Description Possible Causes Action B10F1-12
Key In Switch - Circuit
short to battery
Keyless vehicle module, key
IN status circuit - short to
power
Refer to the electrical circuit diagrams and check
keyless vehicle module, key IN status circuit for
short to power B10F1-13
Key In Switch - Circuit
open
Keyless vehicle module, key
IN status circuit - open
circuit
Refer to the electrical circuit diagrams and check
keyless vehicle module, key IN status circuit for
open circuit B10F2-11
Sunroof Control -
Circuit short to ground
Sunroof enable signal 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 sunroof enable signal circuit for short
to ground B10F2-12
Sunroof Control -
Circuit short to battery
Sunroof enable signal circuit
- short to power
Refer to the electrical circuit diagrams and check
sunroof enable signal circuit for short to power B10F2-13
Sunroof Control -
Circuit open
Sunroof enable signal circuit
- open circuit
Refer to the electrical circuit diagrams and check
sunroof enable signal circuit for open circuit B10F3-11
Left Front Position
Light - Circuit short to
ground
Left front side lamps 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 left front side lamps circuit for short to
ground B10F3-15
Left Front Position
Light - Circuit short to
battery or open
Left front side lamps 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 left front side lamps circuit for short to
power, open circuit B10F4-11
Right Front Position
Light - Circuit short to
ground
Right front side lamps 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 right front side lamps circuit for short
to ground B10F4-15
Right Front Position
Light - Circuit short to
battery or open
Right front side lamps 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 right front side lamps circuit for short
to power, open circuit B10F8-12
Accessory socket 'A'
relay - Circuit short to
battery
Accessory socket 'A' relay
control circuit - short to
power
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check accessory socket 'A' relay control circuit
for short to power B10F8-14
Accessory socket 'A'
relay - Circuit short to
ground or open
Accessory socket 'A' relay
control circuit - short to
ground, open circuit
Refer to the electrical circuit diagrams and check
accessory socket 'A' relay control circuit for short
to ground, open circuit B10F9-12
Accessory socket 'B'
relay - Circuit short to
battery
Front powerpoint, trailer tow
connector, road pricing
connector, sunblind power
supply circuits - short to
power
Refer to the electrical circuit diagrams and check
front powerpoint, trailer tow connector, road
pricing connector, sunblind power supply circuits
for short to power B10F9-14
Accessory socket 'B'
relay - Circuit short to
ground or open
Front powerpoint, trailer tow
connector, road pricing
connector, sunblind power
supply circuits - short to
ground, open circuit
Refer to the electrical circuit diagrams and check
front powerpoint, trailer tow connector, road
pricing connector, sunblind power supply circuits
for short to ground, open circuit

DTC Description Possible Causes Action B10F9-93
Accessory socket 'B'
relay - No operation
Front powerpoint, trailer tow
connector, road pricing
connector, sunblind power
supply circuits - short to
power, ground, 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 front powerpoint, trailer tow connector,
road pricing connector, sunblind power supply
circuits for short to power, ground, open circuit B10FA-93
Delayed Power Off
relay - No operation
ADRC ECM, roof header
console lamp, glove box
lamp , RH/LH footwell
lamps, JAG Sense glove box
module, RH/LH sunvisor
lamps, rear dome lamps
switched power circuits -
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 ADRC ECM, roof header console lamp,
glove box lamp , RH/LH footwell lamps, JAG
Sense glove box module, RH/LH sunvisor lamps,
rear dome lamps switched power circuits for short
to power, open circuit B10FF-11
Ignition control -
Circuit short to ground
ECM and FPDB ignition
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 ECM and FPDB ignition control circuit
for short to ground B10FF-13
Ignition control -
Circuit open
ECM and FPDB ignition
control circuit - 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 ECM and FPDB ignition control circuit
for open circuit B1100-11 O2 sensor heater relay
- Circuit short to
ground
FPDB O2 sensor heater relay
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 FPDB O2 sensor heater relay control
circuit for short to ground B113D-12
Sunroof Global
Open/Close Control -
Circuit short to battery
Roof opening panel global
open/close control circuit -
short to power
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check roof opening panel global open/close
control circuit for short to power B113D-14
Sunroof Global
Open/Close Control -
Circuit short to ground
or open
Roof opening panel global
open/close control circuit -
short to ground, open circuit
Refer to the electrical circuit diagrams and check
roof opening panel global open/close control
circuit for short to ground, open circuit B1140-11
Engine Crank
Authorisation - Circuit
short to ground
Engine crank authorisation
signal 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 engine crank authorisation signal circuit
for short to ground B1142-11
Ignition Status 1 -
Circuit short to ground
Ignition supply 1 circuits -
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 all ignition supply 1 circuits for short to
ground B1143-11
Ignition Status 2 -
Circuit short to ground
Ignition supply 2 circuits -
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 all ignition supply 2 circuits for short to
ground B1144-11
Heated Steering
Wheel Supply - Circuit
short to ground
Heated steering wheel
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 heated steering wheel supply circuit for
short to ground

DTC Description Possible Causes Action B115B-15
Driver Seat Heater -
Circuit short to battery
or open
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 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 B1177-12
Screenwash Level
Switch - Circuit short
to battery
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 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 B1222-23
Master Lock/Unlock
Switch - Signal stuck
low
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 B1237-11
Gear Shift Module
Early Wake-up -
Circuit short to ground
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 B1237-12
Gear Shift Module
Early Wake-up -
Circuit short to battery
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 B1237-13
Gear Shift Module
Early Wake-up -
Circuit open
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 B123E-13
Crank Enable - Circuit
open
OK to crank signal circuit -
open circuit
Refer to the electrical circuit diagrams and check
OK to crank signal circuit for open circuit B1A85-96 Ambient Light Sensor
- Component internal
failure
Light sensor internal
electronic failure
Check and install a new sensor as required B1C45-13
Front Wiper Park
Position Switch -
Circuit open
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 B1C45-23
Front Wiper Park
Position Switch -
Signal stuck low
Signal stuck low
Refer to the electrical circuit diagrams and check
front wiper park position switch input circuit for
short, open circuit B1C78-12
Powerwash Relay -
Circuit short to battery
Powerwash relay control
circuit - short to power
Refer to the electrical circuit diagrams and check
powerwash relay control circuit for short to power B1C78-14
Powerwash Relay -
Circuit short to ground
or open
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 www.JagDocs.com

Published: 12-May-2014
General Information - Diagnostic Trouble Code (DTC) Index DTC: Climate
Control Module (HVAC)
Description and Operation

Climate Control Module


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.
NOTES:


If a 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 programme is in operation, prior to the installation of a new
module/component.


Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to
the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the
manufacturer-approved diagnostic system).


When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with
an up-to-date calibration certificate. 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 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.


Check DDW 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 table below lists all Diagnostic Trouble Codes (DTCs) that could be logged in the Climate Control Module. For additional
diagnosis and testing information, refer to the relevant Diagnosis and Testing section in the workshop manual.
For additional information, refer to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).

DTC Description Possible Causes Action B105A-01
Cabin Temperature
Sensor Fan -
General electrical
failure
Aspirator motor
diagnostic circuit -
short to ground, open
circuit
Aspirator fan
component failure
Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check aspirator motor
diagnostic circuit for short to ground, open circuit B1081-00
Left Temperature
Damper Motor -
No sub type
information
Left hand blend stepper
motor internal or
external fault
Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system B1081-49
Left Temperature
Damper Motor -
Internal electronic
failure
Left hand blend stepper
motor internal
electronic failure
Suspect the left hand blend stepper motor. Check and
install a new stepper motor as required, refer to the new
module/component installation note at the top of the DTC
Index B1082-00
Right Temperature
Damper Motor -
No sub type
information
Right hand blend
stepper motor internal
or external fault
Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system

DTC Description Possible Causes Action B1082-49
Right Temperature
Damper Motor -
Internal electronic
failure
Right hand blend
stepper motor internal
electronic failure
Suspect the right hand blend stepper motor. Check and
install a new stepper motor as required, refer to the new
module/component installation note at the top of the DTC
Index B1083-01
Recirculation
Damper Motor -
General electrical
failure
RECIRC servo motor
circuits - short to
ground, 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 RECIRC servo motor
circuit for short to ground, power, open circuit B1085-00
Defroster Damper
Motor - No sub
type information
Defrost stepper motor
internal or external
fault
Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system B1085-49
Defroster Damper
Motor - Internal
electronic failure
Defrost stepper motor
internal electronic
failure
Suspect the defrost stepper motor. Check and install a new
stepper motor as required, refer to the new
module/component installation note at the top of the DTC
Index B1086-00
Air Distribution
Damper Motor -
No sub type
information
Panel/foot stepper
motor internal or
external fault
Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system B1086-49
Air Distribution
Damper Motor -
Internal electronic
failure
Panel/foot stepper
motor internal
electronic failure
Suspect the panel/foot stepper motor. Check and install a
new stepper motor as required, refer to the new
module/component installation note at the top of the DTC
Index B1087-88
LIN Bus "A" - Bus
off
LIN Bus power #1
circuit - 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 LIN Bus power #1
circuit for open circuit B1088-88
LIN Bus "B" - Bus
off
LIN Bus power #2
circuit - 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 LIN Bus power #2
circuit for open circuit B11ED-68
Electric Heater
Control Module -
Event information
Event information.
Electric heater - invalid
communication
message
Clear DTC. With engine coolant temperature low, set
climate temperature to high and re-test. If DTC remains in
isolation suspect the PTC heater, check and install a new
heater as required, refer to the new module/component
installation note at the top of the DTC Index. If additional
LIN related DTCs are logged refer to the Actions for these
DTCs B11ED-87
Electric Heater
Control Module -
Missing message
Electric heater -
missing communication
message
Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system B11ED-96
Electric Heater
Control Module -
Component
internal failure
Component internal
failure
Suspect the PTC heater, check and install a new heater as
required, refer to the new module/component installation
note at the top of the DTC Index B11ED-98
Electric Heater
Control Module -
Component or
system over
temperature
Component or system
over temperature
Clear DTC. With engine coolant temperature low, set
climate temperature to high and re-test. If DTC remains
suspect the PTC heater, check and install a new heater as
required, refer to the new module/component installation
note at the top of the DTC Index B11EE-01
A/C Compressor -
General electrical
failure
Air conditioning
compressor clutch
solenoid circuits - short
to ground, 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 air conditioning
compressor clutch solenoid circuits for short to ground,
power, open circuit