DTC: Driver Seat Module (DSM)

NOTE: If a control module or component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures information or determine if any prior approval program is in operation, before the replacement of a component.

NOTE: 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).

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

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.

The table below lists all Diagnostic Trouble Codes (DTCs) that could be logged in the driver seat module / passenger seat module, for additional Diagnosis and Testing information refer to the relevant Diagnosis and Testing Information. For additional information, refer to: SEATS .

DRIVER SEAT MODULE (DSM).

DTC	Description	Possible Cause	Action
B1060-11	Seat Headrest Motor Output - Circuit short to ground	Head restraint motor circuit short circuit to ground	Refer to the electrical circuit diagrams and test the head restraint motor circuit for short circuit to ground
B1060-15	Seat Headrest Motor Output - Circuit short to battery or open	Head restraint motor circuit short circuit to power Head restraint motor circuit open circuit	Refer to the electrical circuit diagrams and check seat headrest motor circuit for short circuit to power, open circuit Refer to the electrical circuit diagrams and test the head restraint motor circuit for open circuit
B1064-31	Seat Headrest Motor Sensor - No signal	Head restraint position sensor circuit open circuit Head restraint position sensor circuit high resistance Head restraint position sensor internal failure	Refer to the electrical circuit diagrams and test the head restraint position sensor circuit for open circuit Refer to the electrical circuit diagrams and test the head restraint position sensor circuit for high resistance Install a new head restraint position sensor as necessary
B106D-24	Headrest Up Switch - Signal stuck high	Head restraint up switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the head restraint up switch circuit for short circuit to power
B106E-24	Headrest Down Switch - Signal stuck high	Head restraint down switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the head restraint down switch circuit for short circuit to power
B1087-83	LIN Bus "A" - Value of signal protection calculation incorrect	Seat memory switchpack internal failure	Install a new seat memory switchpack as necessary
B1087-86	Lin Bus "A" - Signal invalid	Seat memory switchpack internal failure	Install a new seat memory switchpack as necessary
B1087-87	Seat Height Motor Relay - Circuit short to ground	Seat memory switchpack circuit open circuit Seat memory switchpack internal failure	Refer to the electrical circuit diagrams and test the seat memory switchpack circuit for communication fault Install a new seat memory switchpack as necessary
B1B86-11	Seat Height Motor Relay - Circuit short to ground	NOTE: Circuit reference HEIGHT UP / HEIGHT DOWN Seat height motor circuit short circuit to ground	Refer to the electrical circuit diagrams and check seat height motor circuit for short circuit to ground
B1B86-15	Seat Height Motor Relay - Circuit short to battery or open	NOTE: Circuit reference HEIGHT UP / HEIGHT DOWN Seat height motor circuit short circuit to ground Seat height motor circuit open circuit	Refer to the electrical circuit diagrams and test the seat height motor circuit for short circuit to power Refer to the electrical circuit diagrams and test the seat height motor circuit for open circuit
B1B87-31	Seat Height Motor Speed/Position Sensor - No signal	NOTE: Circuit reference HEIGHT SENSE+ Seat height speed/position sensor circuit open circuit Seat height speed/position sensor circuit high resistance Seat height speed/position sensor internal failure	Refer to the electrical circuit diagrams and test the seat height speed/position sensor circuit for open circuit Refer to the electrical circuit diagrams and test the seat height speed/position sensor circuit for high resistance Install a new seat height speed/position sensor as necessary
B1B88-11	Seat Slide Motor Relay - Circuit short to ground	NOTE: Circuit reference SLIDE FORWARD / SLIDE BACK Seat forward/rearward motor circuit short circuit to ground	Refer to the electrical circuit diagrams and test the seat forward/rearward motor circuit for short circuit to ground
B1B88-15	Seat Slide Motor Relay - Circuit short to battery or open	NOTE: Circuit reference SLIDE FORWARD / SLIDE BACK Seat forward/rearward motor circuit short circuit to power Seat forward/rearward motor circuit open circuit	Refer to the electrical circuit diagrams and test the seat forward/rearward motor circuit for short circuit to power Refer to the electrical circuit diagrams and test the seat forward/rearward motor circuit for open circuit
B1B89-31	Seat Slide Motor Speed/Position Sensor - No signal	NOTE: Circuit reference SLIDE SENSOR+ Seat forward/rearward speed/position sensor circuit open circuit Seat forward/rearward speed/position sensor circuit high resistance Seat forward/rearward speed/position sensor internal failure	Refer to the electrical circuit diagrams and test the seat forward/rearward speed/position sensor circuit for open circuit Refer to the electrical circuit diagrams and test the seat forward/rearward speed/position sensor circuit for high resistance Install a new seat forward/rearward speed/position sensor as necessary
B1B90-11	Seat Tilt Motor Relay - Circuit short to ground	NOTE: Circuit reference TILT UP / TILT DOWN Seat tilt motor circuit short circuit to ground	Refer to the electrical circuit diagrams and test the seat tilt motor circuit for short circuit to ground
B1B90-15	Seat Tilt Motor Relay - Circuit short to battery or open	NOTE: Circuit reference TILT UP / TILT DOWN Seat tilt motor circuit short circuit to power Seat tilt motor circuit open circuit	Refer to the electrical circuit diagrams and test the seat tilt motor circuit for short circuit to power Refer to the electrical circuit diagrams and test the seat tilt motor circuit for open circuit
B1B91-31	Seat Tilt Motor Speed/Position Sensor - No signal	NOTE: Circuit reference TILT SENSE Seat tilt speed/position sensor circuit open circuit Seat tilt speed/position sensor circuit high resistance Seat tilt speed/position sensor internal failure	Refer to the electrical circuit diagrams and test the seat tilt speed/position sensor circuit for open circuit Refer to the electrical circuit diagrams and test the seat tilt speed/position sensor circuit for high resistance Install a new seat tilt speed/position sensor as necessary
B1B92-11	Seat Recline Motor Relay - Circuit short to ground	NOTE: Circuit reference RECLINE / INCLINE Seat backrest recline motor circuit short circuit to ground	Refer to the electrical circuit diagrams and test the seat backrest recline motor circuit for short circuit to ground
B1B92-15	Seat Recline Motor Relay - Circuit short to battery or open	NOTE: Circuit reference RECLINE / INCLINE Seat backrest recline motor circuit short circuit to power Seat backrest recline motor circuit open circuit	Refer to the electrical circuit diagrams and test the seat backrest recline motor circuit for short circuit to power Refer to the electrical circuit diagrams and test the seat backrest recline motor circuit for open circuit
B1B93-31	Seat Recline Motor Speed/Position Sensor - No signal	NOTE: Circuit reference RECLINE SENSE Seat backrest recline speed/position sensor circuit open circuit Seat backrest recline speed/position sensor circuit high resistance Seat backrest recline speed/position sensor internal failure	Refer to the electrical circuit diagrams and test the seat backrest recline speed/position sensor circuit for open circuit Refer to the electrical circuit diagrams and test the seat backrest recline speed/position sensor circuit for high resistance Install a new seat backrest recline speed/position sensor as necessary
B1B94-24	Seat Height Up Switch - Signal stuck high	NOTE: Circuit reference HEIGHT UP Seat height up switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat height up switch circuit for short circuit to power
B1B95-24	Seat Height Down Switch - Signal stuck high	NOTE: Circuit reference HEIGHT DOWN Seat height down switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat height down switch circuit for short circuit to power
B1B96-24	Seat Slide Forward Switch - Signal stuck high	NOTE: Circuit reference SLIDE FORE Seat slide forward switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat slide forward switch circuit for short circuit to power
B1B97-24	Seat Slide Backward Switch - Signal stuck high	NOTE: Circuit reference SLIDE BACK Seat slide rearward switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat slide rearward switch circuit for short circuit to power
B1B98-24	Seat Tilt Up Switch - Signal stuck high	NOTE: Circuit reference TILT UP Seat tilt up switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat tilt up switch circuit for short circuit to power
B1B99-24	Seat Tilt Down Switch - Signal stuck high	NOTE: Circuit reference TILT DOWN Seat tilt down switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat tilt down switch circuit for short circuit to power
B1C00-24	Seat Recline Up Switch - Signal stuck high	NOTE: Circuit reference RECLINE RAISE Seat backrest recline up switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat backrest recline up switch circuit for short circuit to power
B1C01-24	Seat Recline Down Switch - Signal stuck high	NOTE: Circuit reference RECLINE LOWER Seat backrest recline down switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the seat backrest recline down switch circuit for short circuit to power
B1C02-24	Memory Store Switch - Signal stuck high	NOTE: Circuit reference MEMORY STORE Memory store switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the memory store switch circuit for short circuit to power
B1C03-24	Memory #1 Switch - Signal stuck high	NOTE: Circuit reference MEMORY 1 Memory 1 switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the memory 1 switch circuit for short circuit to power
B1C04-24	Memory #2 Switch - Signal stuck high	NOTE: Circuit reference MEMORY 2 Memory 2 switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the memory 2 switch circuit for short circuit to power
B1C05-24	Memory #3 Switch - Signal stuck high	NOTE: Circuit reference MEMORY 3 Memory 3 switch circuit short circuit to power	Refer to the electrical circuit diagrams and test the memory 3 switch circuit for short circuit to power
U0010-88	Medium Speed CAN Communication Bus - Bus off	Medium speed CAN bus circuit fault	Using the manufacturer approved diagnostic system, complete a CAN network integrity test Refer to the electrical circuit diagrams and test the CAN network
U0140-00	Lost Communication With Body Control Module - No sub type information	Lost communication with the central junction box	Refer to the electrical circuit diagrams and test the power and ground connections to the central junction box Using the manufacturer approved diagnostic system, complete a CAN network integrity test Refer to the electrical circuit diagrams and test the CAN network between the driver/passenger seat module and the central junction box
U0155-00	Lost Communication With Instrument Panel Cluster (IPC) Control Module - No sub type information	Lost communication with instrument panel control module	Refer to the electrical circuit diagrams and test the power and ground connections to the instrument cluster Using the manufacturer approved diagnostic system, complete a CAN network integrity test Refer to the electrical circuit diagrams and test the CAN network between the driver/passenger seat module and the instrument cluster
U0199-00	Lost Communication With "Door Control Module A" - No sub type information	Lost communication with door control module	Refer to the electrical circuit diagrams and test the power and ground connections to the driver door module Using the manufacturer approved diagnostic system, complete a CAN network integrity test Refer to the electrical circuit diagrams and test the CAN network between the driver/passenger seat module and the driver door module
U0300-00	Internal Control Module Software Incompatibility - No sub type information	Driver/passenger seat module is not configured correctly	Using the manufacturer approved diagnostic system, install the latest relevant level of software to the driver/passenger seat module. Clear the diagnostic trouble code and re-test
U1A14-49	CAN Initialization Failure - Internal electronic failure	Driver/passenger seat module internal failure	Using the manufacturer approved diagnostic system, install the latest relevant level of software to the driver/passenger seat module. Clear the diagnostic trouble code and re-test If fault persists, install a new driver/passenger seat module
U1A4C-00	Build / End of Line mode Active - No sub type information	Error/mismatch in car configuration file	Using the manufacturer approved diagnostic system, check and up-date the car configuration file as necessary. Clear the DTC and re-test If fault persists, install a new driver/passenger seat module
U3000-49	Control Module - Internal electronic failure	Driver/passenger seat module internal failure	Install a new driver/passenger seat module
U3001-46	Control Module Improper Shutdown - Calibration / parameter memory failure	Event information Driver/passenger seat module power has been disconnected while in manufacturing mode	DTC for information only. Clear the DTC and retest. If the problem persists, renew the driver/passenger seat module
U3002-81	Vehicle Identification Number - Invalid serial data received	Error/mismatch in car configuration file The driver/passenger seat module has previously been installed to another vehicle	Using the manufacturer approved diagnostic system, check and up-date the car configuration file as necessary. Clear the DTC and re-test Install the original, or a new driver/passenger seat module
U3003-16	Battery Voltage - Circuit voltage below threshold	Driver/passenger seat module supply voltage below threshold	Test the vehicle battery and charging system, repair as necessary. Refer to the relevant workshop information. Refer to the electrical circuit diagrams and test the power and ground supply circuits to the driver/passenger seat module. Clear the DTC and re-test
U3003-17	Battery Voltage - Circuit voltage above threshold	Driver/passenger seat module supply voltage above threshold	Test the vehicle battery and charging system, repair as necessary. Refer to the relevant workshop information. Refer to the electrical circuit diagrams and test the power and ground supply circuits to the driver/passenger seat module. Clear the DTC and re-test