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. |
Note. Prior to carrying out any diagnosis, ensure the vehicle battery is in a good serviceable condition, refer to the battery care manual.
- Verify the customer concern.
- Visually inspect for obvious signs of damage and system integrity. Visual Inspection Mechanical Electrical Seat runners Seat frames Seat movement switch condition and installation Seat heater switch condition and installation Seat motor(s) condition and installation Battery condition and state of charge Fuses Harnesses and connectors Seat movement switch(es) Seat heater switch(es) Seat heater elements Seat motor(s) Seat module(s) Memory control module(s) Ignition switch Battery junction box Central junction box LIN circuit
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to the symptom chart, alternatively check for diagnostic trouble codes (DTCs) and refer to the DTC Index.
- Check DDW for open campaigns. Refer to the corresponding bulletins and SSM's which may be valid for the specific customer complaint and carry out the recommendations as needed.
SYMPTOM CHART
| Symptom | Possible Cause | Action |
|---|---|---|
| No seat movement from switchpack (including no memory recall) | Seat module has gone into sleep mode Seat switchpack LIN, power or ground circuit - Open circuit Seat switchpack LIN, power or ground circuit - Short circuit to ground, short circuit to power | Set ignition ON. Re-check seat function from switchpack. Check for DTC B1A98-87 and refer to DTC relevant DTC index. Check for DTC B1A98-88 and refer to relevant DTC index |
| Seat movement from switchpack occurs in inch mode (after 2 second delay from switch operation) - When seat axis movement is requested from the seat switchpack the requested seat axis moves a short distance (after a 2 second delay from switch operation) then stops. This behavior could occur on any seat axis (slide, height, squab, tilt or cushion) | Motor hall sensor on affected axis is not connected or not receiving expected signals | Check for DTCs, B1B87-31, B1B91-31, B1B89-31, B1B93-31, B1063-31 and refer to relevant DTC index. Re-calibrate affected seat |
| Seat movement from switchpack occurs in inch mode - When seat axis movement is requested from the seat switchpack the requested seat axis moves a short distance then stops. This behavior will occur on ALL seat axis (slide, height, squab, tilt and cushion) | Medium speed CAN fault | Check instrument cluster and driver/passenger door module(s) for DTCs, U0208-00, U0126-00, U0155-00, U0199-00, U0142-00 and refer to relevant DTC index. Check CAN network integrity using manufacturer approved diagnostic system. Re-calibrate affected seat |
| Seat moves forward/rearwards via the slide axis when the seat squab is tipped forwards/rearwards | Seat module is in manufacturing mode | Re-configure the affected seat module as a 'New Module' using the manufacturer approved diagnostic system |
| When seat squab axis is moved to its maximum recline position the squab makes contact with the rear quarter casing causing the squab to twist and bend | Seat is out of calibration | Re-calibrate the affected seat. Check for DTC U3001-46 and refer to relevant DTC index |
| Front seat fore/aft movement not functioning | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test A . |
| Front seat excessive fore/aft free play | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test B . |
| Front seat fore/aft movement noisy | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test C . |
| Front seat height, tilt and/or seat extension motor movement not functioning | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test D . |
| Front seat height, tilt and/or extension movement noisy | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test E . |
| Heating And Cooling - Inoperative | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test F . |
| Heating And Cooling - Noisy Operation | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test G . |
| Heating And Cooling - Poor Heat Or Cool Efficiency | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test H . |
| Heating And Cooling - Heat Or Cool Operation Slow | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test I . |
| Heating And Cooling - Intermittent Operation | Carry out the pinpoint test associated to this Symptom | GO to Pinpoint Test J |
PINPOINT TEST A: FRONT SEAT FORE/AFT MOVEMENT NOT FUNCTIONING
Pinpoint Test A
A1
CHECK FOR FRONT SEAT FORWARD-REARWARD SEAT MOTOR OPERATION
- Set ignition status to ' ON'
- From the switch pack, operate the front seat forward-rearward seat motor switch and listen for evidence of the motor operating
Does the motor operate?
A2
CHECK FRONT SEAT FORWARD-REARWARD SEAT MOTOR DRIVE BAR
- Check front seat drive bar for correct installation and condition
Is the front seat drive bar correctly installed and in a serviceable condition?
YES Re-check for correct front seat forward-rearward movement. Remove seat to allow for further investigation if required.
NO Correctly install front seat forward-rearward seat motor drive bar, or replace if required.
A3
CHECK FRONT SEAT FORWARD-REARWARD SEAT MOTOR
- Set ignition status to 'OFF'.
- Disconnect front seat forward-rearward seat motor connector. NOTE: It may be that the seat has been driven to the limit of travel along the relevant axis, and when the link harness is connected, the seat will remain in the same position. If this is the case, a jolt may be felt from the motor. To confirm the motor operation, swap the link harness to alternate motor pin connections and the seat should travel in the opposite direction.
- Using a locally made fused link harness and power supply, connect power and ground to forward-rearward seat motor.
PINPOINT TEST B: FRONT SEAT EXCESSIVE FORWARD-REARWARD FREE PLAY
Pinpoint Test B
B1
CHECK FRONT SEAT FOR EXCESSIVE FORWARD-REARWARD FREE PLAY
- Check all accessible front seat frame fixings are installed and to the correct torque.
Are all accessible front seat frame fixings installed and to the correct torque?
YES Go to B 2 . → B2
NO Install and tighten all accessible front seat frame fixings to correct torque and re-check for excessive free play.
B2
COMPARE THE FRONT SEAT FORWARD-REARWARD FREE PLAY AGAINST A SIMILAR SEAT
- Compare the front seat forward-rearward free play against a similar seat.
Is the front seat forward-rearward free play excessive when compared to a similar seat?
YES Go to B 3 . → B3
NO The front seat frame is operating correctly. Submit Electronic Product Quality Report (EPQR) with any further query.
B3
CHECK REMAINING FRONT SEAT FRAME FIXINGS
- Remove front seat and/or any seat covers/trim to allow access to check remaining front seat frame fixings are all installed and to the correct torque.
Are all remaining front seat frame fixings installed and to the correct torque?
YES Replace front seat frame. Refer to the relevant section of the service information.
NO Install and tighten all remaining front seat frame fixings to correct torque and re-check for excessive free play.
PINPOINT TEST C: FRONT SEAT FORWARD-REARWARD MOVEMENT NOISY
Pinpoint Test C
C1
COMPARE FRONT SEAT FORWARD-REARWARD MOVEMENT NOISE TO OTHER FRONT SEAT
- Compare the front seat forward-rearward movement noise to other front seat.
Is the front seat forward-rearward movement noise excessive when compared to other front seat?
C2
COMPARE FRONT SEAT FORWARD-REARWARD MOVEMENT NOISE TO FRONT SEAT IN OTHER VEHICLE
- Compare the front seat forward-rearward movement noise to front seat in other vehicle.
Is the front seat forward-rearward movement noise excessive when compared to front seat in other vehicle?
YES Go to C 3 . → C3
NO The front seat frame is operating correctly. Submit Electronic Product Quality Report (EPQR) with any further query.
C3
CHECK FOR DEBRIS OBSTRUCTING SEAT MOVEMENT
- Check for debris obstructing seat movement.
Is the front seat forward-rearward movement obstructed by debris?
YES Remove obstruction and re-check for noisy forward-rearward seat movement.
NO Go to C 4 . → C4
C4
RE-ALIGN FRONT SEAT FRAME
- Loosen front seat frame fixings.
- Set ignition status to 'ON'.
- Using the front seat switch pack drive the front seat fully forward then fully rearward.
- Tighten front seat frame fixings to the correct torque.
- Re-check for noisy seat movement.
Is the front seat forward-rearward movement still noisy?
YES Go to C 5 . → C5
NO The front seat frame is now operating correctly.
C5
CHECK FRONT SEAT FORWARD-REARWARD SEAT MOTOR DRIVE BAR
- Check front seat drive bar for correct installation and condition.
Is the front seat drive bar correctly installed and in a serviceable condition?
YES Replace front seat forward-rearward seat motor. Refer to relevant section of service information.
NO Correctly install front seat forward-rearward seat motor drive bar, or replace if required.
PINPOINT TEST D: FRONT SEAT HEIGHT, TILT AND/OR SEAT EXTENSION MOTOR MOVEMENT NOT FUNCTIONING
Pinpoint Test D
D1
CHECK FRONT SEAT HEIGHT, TILT OR EXTENSION MOTOR
- Set ignition status to ' OFF'.
- Disconnect front seat height, tilt or extension motor connector. NOTE: It may be that the seat has been driven to the limit of travel along the relevant axis, and when the link harness is connected, the seat will remain in the same position. If this is the case, a jolt may be felt from the motor. To confirm the motor operation, swap the link harness to alternate motor pin connections and the seat should travel in the opposite direction.
- Using a locally made fused link harness and power supply, connect power and ground to relevant motor.
PINPOINT TEST E: FRONT SEAT HEIGHT, TILT AND/OR EXTENSION MOVEMENT NOISY
Pinpoint Test E
E1
COMPARE THE HEIGHT, TILT OR EXTENSION MOVEMENT NOISE WITH THE OTHER FRONT SEAT
- Compare the front seat movement noise to other front seat.
Is the front seat height, tilt or extension movement noise excessive when compared to other front seat?
E2
COMPARE FRONT SEAT HEIGHT, TILT OR EXTENSION MOVEMENT NOISE TO FRONT SEAT IN OTHER VEHICLE
- Compare the front seat height, tilt or extension movement noise to front seat in other vehicle.
Is the front seat height, tilt or extension movement noise excessive when compared to front seat in other vehicle?
YES Go to E 3 . → E3
NO The front seat frame is operating correctly. Submit Electronic Product Quality Report (EPQR) with any further query.
E3
CHECK FOR DEBRIS OBSTRUCTING SEAT MOVEMENT
- Check for debris obstructing seat movement.
Is the front seat height, tilt or extension movement obstructed by debris?
YES Remove obstruction and re-check for noisy height, tilt or extension seat movement.
NO Go to E 4 . → E4
E4
CHECK FOR HEIGHT, TILT OR EXTENSION MOVEMENT MECHANISM LUBRICATION
- Check and apply manufacturer approved lubrication to seat height, tilt or extension movement mechanism and re-test for noise.
Is the front seat height, tilt or extension noise still apparent?
YES Replace the relevant motor. Refer to relevant section of service information.
NO The front seat height, tilt or extension motor is operating correctly.
PINPOINT TEST F: HEATER AND COOLING - INOPERATIVE
Pinpoint Test F
F1
CHECK FOR STORED DTC
- Check the Climate Controlled Seat Module for stored DTC's.
Are there any stored DTC's?
YES For information on stored DTC's refer to the information in the Climate Controlled Seat Module DTC index.
NO Go to F 2 . → F2
F2
DRIVER OR FRONT PASSENGER SEAT BACKREST CLIMATE ASSEMBLY - FUNCTIONALITY CHECK
- Check the heat and cool function of the backrest.
Does the backrest heat and cool function operate correctly?
F3
DRIVER OR FRONT PASSENGER SEAT CUSHION CLIMATE ASSEMBLY - FUNCTIONALITY CHECK
- Check the heat and cool function at the cushion.
Does the cushion heat and cool function operate correctly?
YES If there are no faults evident, verify the customer concern.
NO Go to F 4 . → F4
F4
CUSHION BELLOWS
- Check the condition of the bellows.
Are the bellows obstructed, have they collapsed?
YES Remove the obstruction or replace collapsed bellows.
NO Suspect an internal fault with the Seat Climate Assembly. Replace as required, refer to the Warranty Policy and Procedures manual (section B1.2). Prior to installing a new component.
F5
BACKREST BELLOWS DUCT
- Check the security of the bellows duct.
Is the bellows duct correctly installed?
YES Go to F 6 . → F6
NO Securely reconnect the bellows duct.
F6
BACKREST BELLOWS
- Check the security of the bellows.
Are the bellows obstructed, have they collapsed?
YES Remove the obstruction or replace collapsed bellows.
NO Suspect an internal fault with the Seat Climate Assembly. Replace as required, refer to the Warranty Policy and Procedures manual (section B1.2). Prior to installing a new component. Follow the link below to check operation of the Driver or Front Passenger Seat Cushion Climate Assembly. Go to F 2 . → F2
PINPOINT TEST H: HEATING AND COOLING - POOR HEAT OR COOL EFFICIENCY
Pinpoint Test H
H1
CHECK FOR STORED DTC
- Check the Climate Controlled Seat Module for stored DTC's.
Are there any stored DTC's?
YES For information on stored DTC's refer to the information in the Climate Controlled Seat Module DTC index.
NO Go to H 2 . → H2
H2
DRIVER OR FRONT PASSENGER SEAT BACKREST CLIMATE ASSEMBLY - FUNCTIONALITY CHECK
- Check the heat and cool function of the backrest.
Does the backrest heat and cool function operate correctly?
H3
DRIVER OR FRONT PASSENGER SEAT CUSHION CLIMATE ASSEMBLY - FUNCTIONALITY CHECK
- Check the heat and cool function at the cushion.
Does the cushion heat and cool function operate correctly?
YES If there are no faults evident, verify the customer concern.
NO Go to H 4 . → H4
H4
CUSHION BELLOWS
- Check the condition of the bellows.
Are the bellows obstructed, have they collapsed?
YES Remove the obstruction or replace collapsed bellows.
NO Go to H 7 . → H7
H5
BACKREST BELLOWS DUCT
- Check the security of the bellows duct.
Is the bellows duct correctly installed?
YES Go to H 6 . → H6
NO Securely reconnect the bellows duct.
H6
BACKREST BELLOWS
- Check the security of the bellows.
Are the bellows obstructed, have they collapsed?
YES Remove the obstruction or replace collapsed bellows.
NO Suspect an internal fault with the Seat Climate Assembly. Replace as required, refer to the Warranty Policy and Procedures manual (section B1.2). Prior to installing a new component. Follow the link below to check operation of the Driver or Front Passenger Seat Cushion Climate Assembly. Go to H 2 . → H2
H7
DRIVER OR FRONT PASSENGER SEAT BACKREST CLIMATE ASSEMBLY - EFFICIENCY COMPARISON
- Compare the efficiency of the suspect climate seat assembly to another climate seat assembly.
Is the efficiency equal between the two seats?
YES The efficiency is standard and comparable to the design intent.
NO Suspect an internal fault with the Seat Climate Assembly. Replace as required, refer to the Warranty Policy and Procedures manual (section B1.2). Prior to installing a new component.
Pinpoint Test J
J2
Visual inspection
- Visual inspection
- Mechanical Electrical Seat heater switches condition and installation Fuses Harnesses and connectors Seat heater module Seat heater switches Seat heater mat
Note. 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 program is in operation, prior to the installation of a new module/component.
Note. 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).
Note. When performing electrical 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.
Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
Note. Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
Note. 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.
| CAUTION | When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00. |
DTC INDEX
For a complete list of all diagnostic trouble codes that could be logged on this vehicle, please refer to GENERAL INFORMATION - DIAGNOSTIC TROUBLE CODE (DTC) INDEX (1 OF 3) .
Note. To ensure an accurate resistance reading, calibrated test equipment must be used
PINPOINT TEST A: SEAT HEATER MAT
Pinpoint Test A
A1
CHECK FOR DTC'S
- Where possible use the manufacturer approved diagnostic system to review any logged seat heater mat DTC's
Were any seat heater mat DTC's logged?
A2
MANUAL CHECK
- If required operate the vehicle air conditioning on full for 10 minutes to reduce the in vehicle ambient temperature
- Operate the seat heater on full power
Does the seat heater operate correctly?
YES Clear any stored DTC's and retest. If seat heater operation is correct no further action required
NO Go to A 3 . → A3
A3
SHORT CIRCUIT TO GROUND
- Refer to the electrical circuit diagrams and the seat heater mat application chart (see above) to identify the connector
- Disconnect the connector
- Refer to the electrical circuit diagrams and check the seat heater mat heater circuit and the NTC resistor circuit for short circuit to ground
Are either of the circuits short circuit to ground?
YES Repair the circuit or replace the seat heater mat as required. Refer to the warranty policy and procedures manual, or determine if any prior approval program is in operation, prior to the installation of a new module/component. Clear any stored DTC's and retest
NO Go to A 4 . → A4
A4
CIRCUIT CONTINUITY TEST
- Refer to the electrical circuit diagrams and check the seat heater mat (heater circuit) for circuit continuity
Does the seat heater mat heater circuit pass the continuity test?
YES Go to A 5 . → A5
NO Repair the circuit or replace the seat heater mat as required. Refer to the warranty policy and procedures manual, or determine if any prior approval program is in operation, prior to the installation of a new module/component. Clear any stored DTC's and retest
A5
Power Consumption
- Reconnect the connector
- Operate the vehicle air conditioning on full for 10 minutes to reduce the in vehicle ambient temperature
- Refer to the electrical circuit diagrams and check the seat heater mat (heater circuit) using a current clamp
- Operate the seat heater on full power
- Use the chart above to calculate typical value (V/R=I) ( Volts divided by Resistance equals Current in Amps )
- Examples (12 volts / 0.5 ohms =24 amps) (12 volts / 1 ohms = 12 amps) (12 volts / 2 ohms = 6 amps)
Does the seat heater mat consume the correct level of current?
YES Clear any stored DTC's and retest. If operation correct, no further action required
NO Go to A 6 . → A6
A6
RESISTANCE CHECK
- Refer to the electrical circuit diagrams and the seat heater mat application chart (see above) to identify the terminals
- Disconnect the connector
- Using a multimeter, carry out a resistance check of the seat heater mat heater circuit and the NTC resistor circuit . Record the results
- Compare the results to the chart (see above)
| 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 checked and/or the donor vehicle |
Note. 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 program is in operation, prior to the installation of a new module/component
Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests
Note. 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
Note. The DTC index containing an actions list is for guidance only any reference to "check and install new blower unit" should only be carried out following failure confirmation using the pin out diagnostics and/or the over temperature and fluid/air leak diagnostics contained below. The recording of a DTC does NOT signify a permanently failed unit
Note. The climate system functions in a manner that means any detected error state either intermittent or permanent will shut down the complete seat climate system until the next ignition cycle, this does not mean that both climate units within the one seat have failed. This shut down is design intent to protect the system to ensure that the fault detected does not damage the units, it is possible that both units are functioning correctly and that the fault lies elsewhere within the system. The following process can be carried out without removing either the seats or the climate units from the vehicle and should correctly identify any
Pinpoint Test A
A2
Visual Inspection
- Visual Inspection
- Mechanical Electrical Seat heater switch condition and installation Battery condition and state of charge Fuses Harnesses and connectors Seat heater switch(es) Seat heater elements Seat module(s) Ignition switch Battery junction box Central junction box LIN circuit
OVER TEMPERATURE AND FLUID/AIR LEAK DIAGNOSTICS
| Check For Air Flow Specific DTCs | Diagnostic Guidance Notes |
|---|---|
| B120F-98 B122E-98 B122F-98 B1230-98 B1231-7A B1232-7A | Once the diagnostic process detailed above has been carried out and it has been identified that there has not been a failure of any of the climate units, then refer back to the relevant climate system DTC codes that have been recorded DTC codes listed that end in 7A or 98 indicate a possible air leak or air flow restriction within the system In these circumstances, starting with the seat base check all ducting connections for correct engagement and inspect ducting for signs of damage which could result in an air leak (for connection issues re-connect and test system). Only in the event of finding damage to the ducting of one of the units should the unit be replaced. Note that only the specific unit should be replaced Due to the design function of the system, both climate units in any one seat operate integrally. Therefore, if an issue is detected in one of the units then both units are shut down to protect the system until next ignition cycle. Under these circumstances, only replace the damaged unit and DO NOT replace both units |
Climate Controlled Seat Module
| CAUTION | When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00. |
Note. 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 program is in operation, prior to the installation of a new module/component.
Note. 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).
Note. When performing electrical 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.
Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
Note. Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
Note. 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.
| DTC | Description | Possible Cause | Action | |
|---|---|---|---|---|
| B10B9-13 | Blower Control - Circuit open | LH fans pwr circuit, open circuit LH fans rtn circuit, open circuit Connectors disconnected Connector pin damage Blower motor assembly open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check LH fans pwr circuit for open circuit. Check LH fans rtn circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check blower motor assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 LH fans pwr circuit, short to ground LH fans rtn circuit, short to ground Blower motor assembly, short to ground Climate Control Seat Module failure | Check for mechanical restriction or debris in blower motor assembly. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check LH fans pwr circuit for short to ground. Check LH fans rtn circuit for short to ground. Check blower motor assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B1157-13 | Blower Control "B" - Circuit open | RH fans pwr circuit, open circuit RH fans rtn circuit, open circuit Connectors disconnected Connector pin damage Blower motor assembly open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check RH fans pwr circuit for open circuit. Check RH fans rtn circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check blower motor assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 RH fans pwr circuit, short to ground RH fans rtn circuit, short to ground Blower motor assembly, short to ground Climate Control Seat Module failure | Check for mechanical restriction or debris in blower motor assembly. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check RH fans pwr circuit for short to ground. Check RH fans rtn circuit for short to ground. Check blower motor assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B120E-13 | Right Thermal Electric Device Control - Circuit open | RH seat back thermal electric device + circuit, open circuit RH seat back thermal electric device - circuit, open circuit RH seat cushion thermal electric device + circuit, open circuit RH seat cushion thermal electric device - circuit, open circuit Connectors disconnected Connector pin damage Climate seat backrest thermal electric device assembly, open circuit Climate seat cushion thermal electric device assembly, open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat back thermal electric device + circuit for open circuit. Check RH seat back thermal electric device - circuit for open circuit. Check RH seat cushion thermal electric device + circuit for open circuit. Check RH seat cushion thermal electric device - circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check climate seat backrest thermal electric device assembly for open circuit. Check climate seat cushion thermal electric device assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 | RH seat back thermal electric device + circuit, short to ground RH seat back thermal electric device - circuit, short to ground RH seat cushion thermal electric device + circuit, short to ground RH seat cushion thermal electric device - circuit, short to ground Climate seat backrest thermal electric device assembly, short to ground Climate seat cushion thermal electric device assembly, short to ground Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat back thermal electric device + circuit for short to ground. Check RH seat back thermal electric device - circuit for short to ground. Check RH seat cushion thermal electric device + circuit for short to ground. Check RH seat cushion thermal electric device - circuit for short to ground. Check climate seat backrest thermal electric device assembly for short to ground. Check climate seat cushion thermal electric device assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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-4B | Right Thermal Electric Device Control - Over temperature | Restriction in thermal electric device airpath RH seat back thermal electric device + circuit, short to ground RH seat back thermal electric device - circuit, short to ground RH seat cushion thermal electric device + circuit, short to ground RH seat cushion thermal electric device - circuit, short to ground Climate seat backrest thermal electric device assembly, short to ground Climate seat cushion thermal electric device assembly, short to ground Climate Control Seat Module failure | Check for blockage or restriction in thermal electric device airpath. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat back thermal electric device + circuit for short to ground. Check RH seat back thermal electric device - circuit for short to ground. Check RH seat cushion thermal electric device + circuit for short to ground. Check RH seat cushion thermal electric device - circuit for short to ground. Check climate seat backrest thermal electric device assembly for short to ground. Check climate seat cushion thermal electric device assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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-13 | Left Seat Cushion - Circuit open | The Climate Control Seat Module LH cushion sensor input circuit - open circuit Temperature sensor failure Climate Control Seat Module failure | Refer to the electrical circuit diagrams and check left seat cushion temperature sensor circuit for open circuit. Check and install a new sensor/module as required, refer to the new module/component installation note at the top of the DTC Index | |
| B120F-98 | Left Seat Cushion - Component or system over temperature | The Climate Control Seat Module LH cushion sensor input circuit temperature exceeds 65 Degrees C continuously for more than 4 seconds during cooling The Climate Control Seat Module LH cushion sensor input circuit temperature is greater than 110 Degrees C for more than 4 seconds during heating Blocked or restricted thermal electric device fan exhaust vent Restricted thermal electric fan movement | Check for blockage or restriction in thermal electric device fan exhaust vent. Check for restricted thermal electric fan movement. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B1223-13 | Right Seat Cushion Temperature Sensor - Circuit open | RH seat cushion sensor circuit, open circuit RH seat cushion sensor rtn circuit, open circuit Connectors disconnected Connector pin damage Climate seat cushion temperature sensor assembly, open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat cushion sensor circuit for open circuit. Check RH seat cushion sensor rtn circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check Climate seat cushion temperature sensor assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 | LH seat back thermal electric device + circuit, open circuit LH seat back thermal electric device - circuit, open circuit LH seat cushion thermal electric device + circuit, open circuit LH seat cushion thermal electric device - circuit, open circuit Connectors disconnected Connector pin damage Climate seat backrest thermal electric device assembly, open circuit Climate seat cushion thermal electric device assembly, open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat back thermal electric device + circuit for open circuit. Check LH seat back thermal electric device - circuit for open circuit. Check LH seat cushion thermal electric device + circuit for open circuit. Check LH seat cushion thermal electric device - circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check climate seat backrest thermal electric device assembly for open circuit. Check climate seat cushion thermal electric device assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| B1224-19 | Left Thermal Electric Device Control - Circuit current above threshold | LH seat back thermal electric device + circuit, short to ground LH seat back thermal electric device - circuit, short to ground LH seat cushion thermal electric device + circuit, short to ground LH seat cushion thermal electric device - circuit, short to ground Climate seat backrest thermal electric device assembly, short to ground Climate seat cushion thermal electric device assembly, short to ground Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat back thermal electric device + circuit for short to ground. Check LH seat back thermal electric device - circuit for short to ground. Check LH seat cushion thermal electric device + circuit for short to ground. Check LH seat cushion thermal electric device - circuit for short to ground. Check climate seat backrest thermal electric device assembly for short to ground. Check climate seat cushion thermal electric device assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 airpath LH seat back thermal electric device + circuit, short to ground LH seat back thermal electric device - circuit, short to ground LH seat cushion thermal electric device + circuit, short to ground LH seat cushion thermal electric device - circuit, short to ground Climate seat backrest thermal electric device assembly, short to ground Climate seat cushion thermal electric device assembly, short to ground Climate Control Seat Module failure | Check for blockage or restriction in thermal electric device airpath. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat back thermal electric device + circuit for short to ground. Check LH seat back thermal electric device - circuit for short to ground. Check LH seat cushion thermal electric device + circuit for short to ground. Check LH seat cushion thermal electric device - circuit for short to ground. Check climate seat backrest thermal electric device assembly for short to ground. Check climate seat cushion thermal electric device assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 | RH seat back sensor circuit, open circuit RH seat back sensor rtn circuit, open circuit Connectors disconnected Connector pin damage Climate seat back temperature sensor assembly, open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat back sensor circuit for open circuit. Check RH seat back sensor rtn circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check Climate seat back temperature sensor assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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 | LH seat back sensor circuit, open circuit LH seat back sensor rtn circuit, open circuit Connectors disconnected Connector pin damage Climate seat back temperature sensor assembly, open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat back sensor circuit for open circuit. Check LH seat back sensor rtn circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check Climate seat back temperature sensor assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) 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-11 | Right Seat Cushion Blower Speed Sensor - Circuit short to ground | RH cushion fan speed, circuit short to ground Blower motor assembly, short to ground Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH cushion fan speed for circuit short to ground. Check blower motor assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122A-12 | Right Seat Cushion Blower Speed Sensor - Circuit short to battery | RH cushion fan speed, circuit short to power Blower motor assembly, short to power Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH cushion fan speed for circuit short to power. Check blower motor assembly for short to power. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122B-11 | Right Seat Back Blower Speed Sensor - Circuit short to ground | RH seat back fan speed, circuit short to ground Blower motor assembly, short to ground Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat back fan speed for circuit short to ground. Check blower motor assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122B-12 | Right Seat Back Blower Speed Sensor - Circuit short to battery | RH seat back fan speed, circuit short to power Blower motor assembly, short to power Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, RH seat back fan speed for circuit short to power. Check blower motor assembly for short to power. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122C-11 | Left Seat Cushion Blower Speed Sensor - Circuit short to ground | LH cushion fan speed, circuit short to ground Blower motor assembly, short to ground Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH cushion fan speed for circuit short to ground. Check blower motor assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122C-12 | Left Seat Cushion Blower Speed Sensor - Circuit short to battery | LH cushion fan speed, circuit short to power Blower motor assembly, short to power Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH cushion fan speed for circuit short to power. Check blower motor assembly for short to power. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122D-11 | Left Seat Back Blower Speed Sensor - Circuit short to ground | LH seat back fan speed, circuit short to ground Blower motor assembly, short to ground Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat back fan speed for circuit short to ground. Check blower motor assembly for short to ground. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122D-12 | Left Seat Back Blower Speed Sensor - Circuit short to battery | LH seat back fan speed, circuit short to power Blower motor assembly, short to power Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat back fan speed for circuit short to power. Check blower motor assembly for short to power. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122E-13 | Right Seat Cushion - Circuit open | Refer to the electrical circuit diagrams an The Climate Control Seat Module RH cushion sensor input circuit - open circuit Temperature sensor failure Climate Control Seat Module failure d check right seat cushion temperature sensor circuit for open circuit. Check and install a new sensor/module as required, refer to the new module/component installation note at the top of the DTC Index | ||
| B122E-98 | Right Seat Cushion - Component or system over temperature | The Climate Control Seat Module RH cushion sensor input circuit temperature exceeds 65 Degrees C continuously for more than 4 seconds during cooling The Climate Control Seat Module RH cushion sensor input circuit temperature is greater than 110 Degrees C for more than 4 seconds during heating Blocked or restricted thermal electric device fan exhaust vent Restricted thermal electric fan movement | Check for blockage or restriction in thermal electric device fan exhaust vent. Check for restricted thermal electric fan movement. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B122F-13 | Right Seat Back - Circuit open | Right seatback temperature sensor circuit - open circuit Temperature sensor failure Climate Control Seat Module failure | Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. Refer to the electrical circuit diagrams and check right seatback temperature sensor circuit for open circuit. Check and install a new sensor/module as required, refer to the new module/component installation note at the top of the DTC Index | |
| B122F-98 | Right Seat Back - Component or system over temperature | The Climate Control Seat Module RH seat back sensor input circuit temperature exceeds 65 Degrees C continuously for more than 4 seconds during cooling The Climate Control Seat Module RH seat back sensor input circuit temperature is greater than 110 Degrees C for more than 4 seconds during heating Blocked or restricted thermal electric device fan exhaust vent Restricted thermal electric fan movement | Check for blockage or restriction in thermal electric device fan exhaust vent. Check for restricted thermal electric fan movement. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B1230-13 | Left Seat Back - Circuit open | Left seatback temperature sensor circuit - open circuit Temperature sensor failure Climate Control Seat Module failure | Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. Refer to the electrical circuit diagrams and check left seatback temperature sensor circuit for open circuit. Check and install a new sensor/module as required, refer to the new module/component installation note at the top of the DTC Index | |
| B1230-98 | Left Seat Back - Component or system over temperature | The Climate Control Seat Module LH seat back sensor input circuit temperature exceeds 65 Degrees C continuously for more than 4 seconds during cooling The Climate Control Seat Module LH seat back sensor input circuit temperature is greater than 110 Degrees C for more than 4 seconds during heating Blocked or restricted thermal electric device fan exhaust vent Restricted thermal electric fan movement | Check for blockage or restriction in thermal electric device fan exhaust vent. Check for restricted thermal electric fan movement. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B1231-7A | Right Seat - Fluid leak or seal failure | The Climate Control Seat Module has detected an input temperature difference greater than expected between RH seat back sensor and RH cushion sensor Climate seat back assembly airpath leaking Climate seat cushion assembly airpath leaking Seat assembly damaged | Check for blockage or restriction in seat back thermal electric device fan ducts. Check seat back thermal electric device fan exhaust vent is clear. Check for blockage or restriction in seat cushion thermal electric device fan ducts. Check seat cushion thermal electric device fan exhaust vent is clear. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B1232-7A | Left Seat - Fluid leak or seal failure | The Climate Control Seat Module has detected an input temperature difference greater than expected between LH seat back sensor and LH cushion sensor Climate seat back assembly airpath leaking Climate seat cushion assembly airpath leaking Seat assembly damaged | Check for blockage or restriction in seat back thermal electric device fan ducts. Check seat back thermal electric device fan exhaust vent is clear. Check for blockage or restriction in seat cushion thermal electric device fan ducts. Check seat cushion thermal electric device fan exhaust vent is clear. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| B1235-13 | Left Seat Cushion Temperature Sensor - Circuit open | LH seat cushion sensor circuit, open circuit LH seat cushion sensor rtn circuit, open circuit Connectors disconnected Connector pin damage Climate seat cushion temperature sensor assembly, open circuit Climate Control Seat Module failure | Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm the fault is present. Refer to the electrical circuit diagrams and check, LH seat cushion sensor circuit for open circuit. Check LH seat cushion sensor rtn circuit for open circuit. Check for any disconnected connectors or damaged connector pins. Check Climate seat cushion temperature sensor assembly for open circuit. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| U0001-88 | High Speed CAN Communication Bus - Bus off | High 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. Refer to the electrical circuit diagrams and check the CAN network. 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. Refer to the electrical circuit diagrams and check the CAN network. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| U0140-00 | Lost Communication With Body Control Module - No sub type information | CAN harness link between Climate Control Seat Module and Central Junction Box malfunction The Climate Control Seat Module has not received the expected CAN signal from the Central Junction Box within the specified time interval | Using the manufacturer approved diagnostic system, check Central Junction Box for DTCs and refer to the relevant DTC Index. Using the manufacturer approved diagnostic system, carry out network integrity test. Refer to the electrical circuit diagrams and check Central Junction Box power and ground circuits for open circuit. Check CAN harness between Climate Control Seat Module and Central Junction Box, repair as necessary. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| U0142-00 | Lost Communication With Body Control Module "B" - No sub type information | CAN harness link between Climate Control Seat Module and Rear Junction Box malfunction The Climate Control Seat Module has not received the expected CAN signal from the Rear Junction Box within the specified time interval | Using the manufacturer approved diagnostic system, check Rear Junction Box for DTCs and refer to the relevant DTC Index. Using the manufacturer approved diagnostic system, carry out network integrity test. Refer to the electrical circuit diagrams and check Rear Junction Box power and ground circuits for open circuit. Check CAN harness between Climate Control Seat Module and Rear Junction Box, repair as necessary. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| U0155-00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module - No sub type information | CAN harness link between Climate Control Seat Module and Instrument Cluster network malfunction The Climate Control Seat Module has not received the expected CAN signal from the Instrument Cluster within the specified time interval | Using the manufacturer approved diagnostic system, check Instrument Cluster for DTCs and refer to the relevant DTC Index. Using the manufacturer approved diagnostic system, carry out network integrity test. Refer to the electrical circuit diagrams and check Instrument Cluster power and ground circuits for open circuit. Check CAN harness between Climate Control Seat Module and Instrument Cluster, repair as necessary. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| U0156-00 | Lost Communication With Information Center "A" - No sub type information | CAN harness link between Climate Control Seat Module and Information and Entertainment Control Module network malfunction The Climate Control Seat Module has not received the expected CAN signal from the Information and Entertainment Control Module within the specified time interval | Using the manufacturer approved diagnostic system, check Information and Entertainment Control Module for DTCs and refer to the relevant DTC Index. Using the manufacturer approved diagnostic system, carry out network integrity test. Refer to the electrical circuit diagrams and check Information and Entertainment Control Module power and ground circuits for open circuit. Check CAN harness between Climate Control Seat Module and Information and Entertainment Control Module, repair as necessary. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |
| U0300-00 | Internal Control Module Software Incompatibility - No sub type information | Incorrect or invalid software has been installed | Using the manufacturer approved diagnostic system, re-configure the Climate Control Seat Module and the Rear Junction Box. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. | |
| 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. | Using the manufacturer approved diagnostic system, check Engine Control Module for DTCs and refer to the relevant DTC Index. | |
| U2101-00 | Control Module Configuration Incompatible - No sub type information | Calibration incomplete/corrupt | Using the manufacturer approved diagnostic system, re-configure the Climate Control Seat Module and the Rear Junction Box. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. | |
| U3000-04 | Control Module - System internal failures | Climate Control Seat Module failure Climate Control Seat Module microprocessor failed internal ROM and/or RAM checksum test | Refer to the new module/component installation note at the top of the DTC Index if the Climate Control Seat Module is suspect. | |
| U3003-62 | Battery Voltage - Signal compare failure | Mismatch in battery voltage of 2 volts or more between the measured battery voltage at the Climate Control Seat Module and the battery voltage signal sent from the Rear Junction Box | Refer to the electrical circuit diagrams and check that power supply voltage at Climate Control Seat Module and Rear Junction Box is not different by more than 2 volts. Rectify as required. Carry out On Demand Self Test (ODST) using manufacturer approved diagnostic system to confirm rectification. Alternatively carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. | |