seat control module JAGUAR XFR 2010 1.G User Guide
Page 175 of 3039
Published: 17-Apr-2014 
General Information - Diagnostic Trouble Code (DTC) Index DTC: Front Seat Climate Control Module (DCSM) 
Description and Operation 
 
Front Seat Climate Control Module (DCSM) 
 
 
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 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 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 a 
current 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 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 
manufacturers approved diagnostic system 
 
The table below lists all diagnostic trouble codes (DTCs) that could be logged in the seat climate control module, for additional 
diagnosis and testing information refer to the relevant diagnosis and testing section. 
For additional information, refer to: Seats (501-10 Seating, Diagnosis and Testing). 
 
DTC Description Possible Causes Action B10B9-13 
Blower Control - Circuit 
open  
Connectors disconnected or 
connector pin damage   
Seat blower left circuit - 
Open circuit 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_FANS_RTN, Circuit reference 
LH_FANS_PWR - For open circuit. Repair circuit as 
required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B10B9-4B 
Blower Control - Over 
temperature  
Mechanical restriction in 
blower motor assembly 
Seat blower left circuit - 
Short circuit to ground 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Check for mechanical restriction or debris in seat 
blower 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_FANS_RTN, Circuit reference 
LH_FANS_PWR - For short circuit to ground. Repair 
circuit as required, clear DTC and retest  
Page 176 of 3039
 
DTC Description Possible Causes Action    Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1157-13 
Blower Control "B" - 
Circuit open  
Connectors disconnected or 
connector pin damage   
Seat blower right circuit - 
Open circuit 
Blower motor assembly - 
Open circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_FANS_RTN, Circuit reference 
RH_FANS_PWR - For open circuit. Repair circuit as 
required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1157-4B 
Blower Control "B" - 
Over temperature  
Mechanical restriction in 
blower motor assembly 
Seat blower right circuit - 
Short circuit to ground 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Check for mechanical restriction or debris in seat 
blower 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_FANS_RTN, Circuit reference 
RH_FANS_PWR - For short circuit to ground. Repair 
circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B120E-13 
Right Thermal Electric 
Device Control - Circuit 
open  
Connectors disconnected or 
connector pin damage   
Seat backrest thermal 
electric device right circuit 
- Open circuit 
Seat cushion thermal 
electric device right circuit 
- Open circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_SEAT_BACK_TED+, Circuit reference 
RH_SEAT_BACK_TED- - For open circuit. Repair 
circuit as required, clear DTC and retest 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_CUSHION_TED+, Circuit reference 
RH_CUSHION_TED- - For open circuit. Repair circuit 
as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B120E-19 
Right Thermal Electric 
Device Control - Circuit 
current above threshold  
Seat backrest thermal 
electric device right circuit 
- Short circuit to ground 
Seat cushion thermal 
electric device right circuit 
- Short circuit to ground 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_SEAT_BACK_TED+, Circuit reference 
RH_SEAT_BACK_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_CUSHION_TED+, Circuit reference 
RH_CUSHION_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint www.JagDocs.com 
Page 177 of 3039
 
DTC Description Possible Causes Action    tests associated with this DTC using the 
manufacturer approved diagnostic system B120E-4B 
Right Thermal Electric 
Device Control - Over 
temperature  
Restriction in thermal 
electric device air path 
Seat backrest thermal 
electric device right circuit 
- Short circuit to ground 
Seat cushion thermal 
electric device right circuit 
- Short circuit to ground 
Front seat climate control 
module failure  
Check for blockage or restriction in thermal electric 
device air path 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_SEAT_BACK_TED+, Circuit reference 
RH_SEAT_BACK_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_CUSHION_TED+, Circuit reference 
RH_CUSHION_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B120F-98 
Left Seat Cushion - 
Component or system 
over temperature  
Blocked or restricted 
thermal electric device fan 
exhaust vent 
Restricted thermal electric 
device fan movement  
Check for blockage or restriction in thermal electric 
device fan exhaust vent 
Check for restricted thermal electric device fan 
movement 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1223-13 
Right Seat Cushion Temperature Sensor - 
Circuit open  
Connectors disconnected or 
connector pin damage   
Seat cushion temperature 
sensor right circuit - Open 
circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_CUSHION_SENSOR, Circuit reference 
RH_CUSHION_SENSOR_RTN - For open circuit. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1224-13 
Left Thermal Electric 
Device Control - Circuit 
open  
Connectors disconnected or 
connector pin damage   
Seat backrest thermal 
electric device left circuit - 
Open circuit 
Seat cushion thermal 
electric device left circuit - 
Open circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_SEAT_BACK_TED+, Circuit reference 
LH_SEAT_BACK_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_CUSHION_TED+, Circuit reference 
LH_CUSHION_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system  
Page 178 of 3039
 
DTC Description Possible Causes Action B1224-19 
Left Thermal Electric 
Device Control - Circuit 
current above threshold  
Seat backrest thermal 
electric device left circuit - 
Short circuit to ground 
Seat cushion thermal 
electric device left circuit - 
Short circuit to ground 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_SEAT_BACK_TED+, Circuit reference 
LH_SEAT_BACK_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_CUSHION_TED+, Circuit reference 
LH_CUSHION_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1224-4B 
Left Thermal Electric 
Device Control - Over 
temperature  
Restriction in thermal 
electric device air path 
Seat backrest thermal 
electric device left circuit - 
Short circuit to ground 
Seat cushion thermal 
electric device left circuit - 
Short circuit to ground 
Front seat climate control 
module failure  
Check for blockage or restriction in thermal electric 
device air path 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_SEAT_BACK_TED+, Circuit reference 
LH_SEAT_BACK_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_CUSHION_TED+, Circuit reference 
LH_CUSHION_TED- - For short circuit to ground. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1225-13 
Right Seat Back Temperature Sensor - 
Circuit open  
Connectors disconnected or 
connector pin damage   
Seat backrest temperature 
sensor right circuit - Open 
circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_SEAT_BACK_SENSOR, Circuit 
reference RH_SEAT_BACK_SENSOR_RTN - For open 
circuit. Repair circuit as required, clear DTC and 
retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1229-13 
Left Seat Back Temperature Sensor - 
Circuit open  
Connectors disconnected or 
connector pin damage   
Seat backrest temperature 
sensor left circuit - Open 
circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_SEAT_BACK_SENSOR, Circuit 
reference LH_SEAT_BACK_SENSOR_RTN - For open 
circuit. Repair circuit as required, clear DTC and 
retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system  
Page 179 of 3039
 
DTC Description Possible Causes Action B122A-11 
Right Seat Cushion 
Blower Speed Sensor - 
Circuit short to ground  
Seat cushion blower speed 
right circuit - Short circuit 
to ground 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_CUSHION_FAN_SPEED - For short 
circuit to ground. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122A-12 
Right Seat Cushion 
Blower Speed Sensor - 
Circuit short to battery  
Seat cushion blower speed 
right circuit - Short circuit 
to power 
Blower motor assembly - 
Short circuit to power 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_CUSHION_FAN_SPEED - For short 
circuit to power. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122B-11 
Right Seat Back Blower 
Speed Sensor - Circuit 
short to ground  
Seat backrest blower speed 
right circuit - Short circuit 
to ground 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_SEAT_BACK_FAN_SPEED - For short 
circuit to ground. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122B-12 
Right Seat Back Blower 
Speed Sensor - Circuit 
short to battery  
Seat backrest blower speed 
right circuit - Short circuit 
to power 
Blower motor assembly - 
Short circuit to power 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference RH_SEAT_BACK_FAN_SPEED - For short 
circuit to power. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122C-11 
Left Seat Cushion 
Blower Speed Sensor - 
Circuit short to ground  
Seat cushion blower speed 
left circuit - Short circuit to 
ground 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_CUSHION_FAN_SPEED - For short 
circuit to ground. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system  
Page 180 of 3039
 
DTC Description Possible Causes Action B122C-12 
Left Seat Cushion 
Blower Speed Sensor - 
Circuit short to battery  
Seat cushion blower speed 
left circuit - Short circuit to 
power 
Blower motor assembly - 
Short circuit to power 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_CUSHION_FAN_SPEED - For short 
circuit to power. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122D-11 
Left Seat Back Blower 
Speed Sensor - Circuit 
short to ground  
Seat backrest blower speed 
left circuit - Short circuit to 
ground 
Blower motor assembly - 
Short circuit to ground 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_SEAT_BACK_FAN_SPEED - For short 
circuit to ground. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122D-12 
Left Seat Back Blower 
Speed Sensor - Circuit 
short to battery  
Seat backrest blower speed 
left circuit - Short circuit to 
power 
Blower motor assembly - 
Short circuit to power 
Front seat climate control 
module failure  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_SEAT_BACK_FAN_SPEED - For short 
circuit to power. Repair circuit as required, clear 
DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122E-98 
Right Seat Cushion - 
Component or system 
over temperature  
Blocked or restricted 
thermal electric device fan 
exhaust vent 
Restricted thermal electric 
device fan movement  
Check for blockage or restriction in thermal electric 
device fan exhaust vent 
Check for restricted thermal electric device fan 
movement 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B122F-98 
Right Seat Back - 
Component or system 
over temperature  
Blocked or restricted 
thermal electric device fan 
exhaust vent 
Restricted thermal electric 
device fan movement  
Check for blockage or restriction in thermal electric 
device fan exhaust vent 
Check for restricted thermal electric device fan 
movement 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1230-98 
Left Seat Back - 
Component or system 
over temperature  
Blocked or restricted 
thermal electric device fan 
exhaust vent 
Restricted thermal electric 
device fan movement  
Check for blockage or restriction in thermal electric 
device fan exhaust vent 
Check for restricted thermal electric device fan 
movement 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system  
Page 181 of 3039
 
DTC Description Possible Causes Action B1231-7A 
Right Seat - Fluid leak 
or seal failure  
Seat backrest assembly - 
Air path leaking 
Seat cushion assembly - 
Air path leaking 
Seat assembly damaged  
Check for blockage or restriction in seat 
backrest/seat cushion thermal electric device fan 
ducts 
Check seat backrest/seat cushion thermal electric 
device fan exhaust vent is clear 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1232-7A 
Left Seat - Fluid leak or 
seal failure  
Seat backrest assembly - 
Air path leaking 
Seat cushion assembly - 
Air path leaking 
Seat assembly damaged  
Check for blockage or restriction in seat 
backrest/seat cushion thermal electric device fan 
ducts 
Check seat backrest/seat cushion thermal electric 
device fan exhaust vent is clear 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system B1235-13 
Left Seat Cushion Temperature Sensor - 
Circuit open  
Connectors disconnected or 
connector pin damage   
Seat cushion temperature 
sensor left circuit - Open 
circuit 
Front seat climate control 
module failure  
Check for any disconnected connectors or damaged 
connector pins 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm the fault is 
present 
Refer to the electrical circuit diagrams and check 
the front seat climate control module - Circuit 
reference LH_CUSHION_SENSOR, Circuit reference 
LH_CUSHION_SENSOR_RTN - For open circuit. 
Repair circuit as required, clear DTC and retest 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm 
rectification. Alternatively, carry out any pinpoint 
tests associated with this DTC using the 
manufacturer approved diagnostic system U0010-88 
Medium Speed CAN 
Communication Bus - 
Bus off  
Medium speed CAN 
communication - Bus off  
Refer to the electrical circuit diagrams and check 
the power and ground connections to the module 
Using the manufacturer approved diagnostic 
system, complete a CAN network integrity test 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm rectification U0140-00 
Lost Communication 
With Body Control 
Module - No sub type 
information  
Lost communication with 
central junction box  
NOTE: This DTC may be stored even though no fault 
condition is present and should be ignored unless the 
customer has reported a climate seat concern. Clear the 
DTC and retest. Verify the customer concern prior to 
diagnosis 
 
Refer to the electrical circuit diagrams and check 
the power and ground connections to the module 
Using the manufacturer approved diagnostic 
system, complete a CAN network integrity test 
Refer to the electrical circuit diagrams and check 
the CAN network between the front seat climate 
control module and central junction box 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm rectification U0142-00 Lost Communication  
Lost communication with  
Refer to the electrical circuit diagrams and check With Body Control Module "B" - No sub rear junction box the power and ground connections to the module type information Using the manufacturer approved diagnostic system, complete a CAN network integrity test Refer to the electrical circuit diagrams and check the CAN network between the front seat climate control module and rear junction box Carry out on demand self test using manufacturer approved diagnostic system to confirm rectification www.JagDocs.com 
Page 182 of 3039
 
DTC Description Possible Causes Action U0155-00 
Lost Communication 
With Instrument Panel 
Cluster (IPC) Control 
Module - No sub type 
information  
Lost communication with 
instrument cluster  
Refer to the electrical circuit diagrams and check 
the power and ground connections to the module 
Using the manufacturer approved diagnostic 
system, complete a CAN network integrity test 
Refer to the electrical circuit diagrams and check 
the CAN network between the front seat climate 
control module and instrument cluster 
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm rectification U0156-00 Lost Communication  
Lost communication with  
Refer to the electrical circuit diagrams and check With Information Center "A" - No sub rear seat entertainment the power and ground connections to the module type information control module Using the manufacturer approved diagnostic system, complete a CAN network integrity test Refer to the electrical circuit diagrams and check the CAN network between the front seat climate control module and rear seat entertainment control module Carry out on demand self test using manufacturer approved diagnostic system to confirm rectification U0300-00 
Internal Control Module 
Software 
Incompatibility - No 
sub type information  
Software stored in front 
seat climate control 
module is not compatible 
with master configuration  
Check the front seat climate control module is 
configured correctly 
Reconfigure the front seat climate control module 
using the manufacturer approved diagnostic 
system. Clear the DTC and retest the system  
Carry out on demand self test using manufacturer 
approved diagnostic system to confirm rectification U0401-00 
Invalid Data Received 
From ECM/PCM - No 
sub type information  
The engine control module 
has transmitted engine 
speed quality factor CAN 
signal at a specific value 
for a greater than expected 
time period  
Check the engine control module for related DTCs 
and refer to the relevant DTC index 
On software levels previous to 8X23-14B663-AE 
clear the DTC and take no further action if the 
system is operating correctly U2101-00 Control module  
Compatible central car  
Using the manufacturer approved diagnostic Configuration Incompatible - No sub configuration file not system check and update the car configuration file type information received by front seat as required. Carry out on demand self test using climate control module manufacturer approved diagnostic system to confirm rectification. Clear the DTC and retest U3000-04 
Control Module - 
System internal 
failures  
Front seat climate control 
module - Internal failure  
Check and install new front seat climate control 
module as required. Carry out on demand self test 
using manufacturer approved diagnostic system to 
confirm rectification U3003-62 
Battery Voltage - 
Signal compare failure  
Wiring harness fault 
Battery internal failure 
Charging system fault  
Refer to the electrical circuit diagrams and check 
the power and ground connections to the front 
seat climate control module and the central 
junction box 
Refer to the battery care manual and verify that 
the vehicle battery is fully charged and serviceable 
before continuing with further diagnostic tests 
Check the vehicle charging system  
Page 204 of 3039
 
DTC Description Possible Causes Action B1A54-11 
Occupant Belt Tension Sensor - 
Circuit short to 
ground  
Safety belt tension 
sensor voltage reference 
or signal circuit - short 
to ground  
Refer to the electrical circuit diagrams and check safety 
belt tension sensor voltage reference and signal circuits 
for short to ground B1A54-12 
Occupant Belt Tension Sensor - 
Circuit short to 
battery  
Safety belt tension 
sensor voltage reference 
or signal circuit - short 
to power  
Refer to the electrical circuit diagrams and check safety 
belt tension sensor voltage reference and signal circuits 
for short to power B1A54-13 
Occupant Belt Tension Sensor - 
Circuit open  
Safety belt tension 
sensor voltage reference 
or signal circuit - open 
circuit  
Refer to the electrical circuit diagrams and check safety 
belt tension sensor voltage reference and signal circuits 
for open circuit B1A62-02 
Pressure Sensor - 
General signal 
failure  
General signal failure  
Refer to the electrical circuit diagrams and check safety 
belt tension and mat pressure sensor circuits for short to 
each other B1A62-11 
Pressure Sensor - 
Circuit short to 
ground  
Mat pressure sensor 
voltage reference or 
signal circuits - short to 
ground  
Refer to the electrical circuit diagrams and check mat 
pressure sensor voltage reference and signal circuits for 
short to ground B1A62-12 
Pressure Sensor - 
Circuit short to 
battery  
Mat pressure sensor 
voltage reference, 
ground or signal circuits 
- short to power  
Refer to the electrical circuit diagrams and check mat 
pressure sensor voltage reference, ground and signal 
circuits for short to power B1A62-13 
Pressure Sensor - 
Circuit open  
Mat pressure sensor 
voltage reference or 
signal circuit - open 
circuit  
Refer to the electrical circuit diagrams and check mat 
pressure sensor voltage reference and signal circuits for 
open circuit B1A62-7B 
Pressure Sensor - 
Low fluid level  
Low fluid level - bladder 
damaged  
Check and install new bladder as required. 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 U0001-88 
High Speed CAN 
Communication 
Bus - Bus off  
Bus off  
Refer to the electrical circuit diagrams and check CAN 
network for short, open circuit. Carry out the CAN 
network integrity test using the manufacturer approved 
diagnostic system U0151-00 
Lost 
Communication 
With Restraints 
Control Module - 
No sub type 
information  
Restraints control 
module missing 
message  
Refer to the electrical circuit diagrams and check power 
and ground supplies to restraints control module. Carry 
out CAN network integrity test using the manufacturer 
approved diagnostic system U0300-00 
Internal Control 
Module Software 
Incompatibility - 
No sub type 
information  
Master car configuration 
file ID does not 
correspond  
Check correct occupancy seat module is installed for 
vehicle specification. Check rear junction box for related 
diagnostic trouble codes and refer to relevant diagnostic 
trouble code index U2016-51 
Control Module 
Main Software - 
Not programmed  
Main software not 
programmed  
Check and install a new occupancy seat module as 
required. 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 U201A-51 
Control Module 
Main Calibration 
Data - Not 
programmed  
Main calibration data not 
programmed  
Check and install a new occupancy seat module as 
required. 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  
Page 205 of 3039
 
DTC Description Possible Causes Action U3000-04 
Control Module - 
System Internal 
Failures  
Occupancy seat module 
internal electronic failure  
Check and install a new occupancy seat module as 
required. 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 U3000-54 
Control Module - 
Missing calibration  
This diagnostic trouble 
code is set if a 'calibrate 
occupancy seat module 
empty seat offset' 
routine is requested and 
fails due to one of the 
pre-conditions to 
execute the routine  
Check the following criteria have all been achieved: 
Ignition status set to RUN/START. Verify seat is always 
empty after power-up before re-zero is requested. The 
occupancy seat module has gone through the seat 
assembly plant calibration. No collision event received 
from the restraints control module during the current 
ignition cycle. No faults present in the current ignition 
cycle. The trigger message for calibrate empty seat 
offset has been received from the diagnostic tool. 
Occupancy seat module has enough time to begin 
classification. Temperature is between 6C (42F) and 36C 
(97F) U3003-16 
Battery Voltage - 
Circuit voltage 
below threshold  
Circuit voltage below 
threshold  
Check battery is in fully charged and serviceable 
condition. Check integrity of charging system U3003-17 
Battery Voltage - 
Circuit voltage 
above threshold  
Circuit voltage above 
threshold  
Check battery is in fully charged and serviceable 
condition. Check integrity of charging system