LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Land Rover >> 2010 >> LR4 Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> DTC Index & General Information (1 Of 3) >> General Information >> Description & Operation >> DTC: Driver/Passenger Front Seat Module (DSM/PSM) >> Driver/Passenger Front Seat Module (DSM/PSM) >> DTC's
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Driver/Passenger Front Seat Module (DSM/PSM): DTC's

DTC Description Possible Causes Action
B1060-11 Seat Headrest Motor Output - Circuit short to ground
  • Circuit short to ground
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat headrest motor circuit
B1060-15 Seat Headrest Motor Output - Circuit short to battery or open
  • Circuit short to battery or open
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat headrest motor circuit
B1064-31 Seat Headrest Motor Sensor - no signal
  • Harness/connector problem
  • No signal from sensor
  • Sensor/motor malfunction
  • Check the seat wiring harness/connectors for security/integrity
  • Refer to the electrical circuit diagrams and check the seat headrest motor sensor circuit. Repair circuit as required. Clear DTC and retest
B106D-24 Headrest Up Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B106E-24 Headrest Down Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1087-83 LIN Bus "A" - value of signal protection calculation incorrect
  • LIN bus checksum error, value of signal protection calculation incorrect
  • Generic LIN bus failure
 Check for other LIN Bus related DTCs. Refer to the electrical circuit diagrams and check the LIN Bus circuit
B1087-86 LIN Bus "A" - Signal invalid
  • Generic LIN bus failure
  • Signal invalid
  • LIN bus Bit error / Parity Error /Synch Error
 Check for other LIN Bus related DTCs. Refer to the electrical circuit diagrams and check the LIN Bus circuit
B1087-87 LIN Bus "A" - missing message
  • Generic LIN bus failure
  • Missing message
  • Slave not responding or LIN bus short circuit to ground or power
 Check for other LIN Bus related DTCs. Refer to the electrical circuit diagrams and check the LIN Bus circuit
B1B86-11 Seat Height Motor Relay - Circuit short to ground
  • Circuit short to ground
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat height motor circuit
B1B86-15 Seat Height Motor Relay - Circuit short to battery or open
  • Circuit short to power, open circuit
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat height motor circuit
B1B87-31 Seat Height Motor Speed/Position Sensor - no signal
  • Harness/connector problem
  • No signal from sensor
  • Sensor/motor malfunction
  • Check the seat wiring harness/connectors for security/integrity
  • Refer to the electrical circuit diagrams and check the seat height motor sensor circuit. Repair circuit as required. Clear DTC and retest
B1B88-11 Seat Slide Motor Relay - Circuit short to ground
  • Circuit short to ground
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat slide motor relay circuit
B1B88-15 Seat Slide Motor Relay - Circuit short to battery or open
  • Circuit short to power or open circuit
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat slide motor relay circuit
B1B89-31 Seat Slide Motor Speed/Position Sensor - no signal
  • Harness/connector problem
  • No signal from sensor
  • Sensor/motor malfunction
  • Check the seat wiring harness/connectors for security/integrity
  • Refer to the electrical circuit diagrams and check the seat slide motor speed sensor circuit. Repair circuit as required. Clear DTC and retest
B1B90-11 Seat Tilt Motor Relay - Circuit short to ground
  • Circuit short to ground
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat tilt motor relay circuit
B1B90-15 Seat Tilt Motor Relay - Circuit short to battery or open
  • Circuit short to power or open circuit
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat tilt motor relay circuit
B1B91-31 Seat Tilt Motor Speed/Position Sensor - no signal
  • Harness/connector problem
  • No signal from sensor
  • Sensor/motor malfunction
  • Check the seat wiring harness/connectors for security/integrity
  • Refer to the electrical circuit diagrams and check the seat slide motor speed sensor circuit. Repair circuit as required. Clear DTC and retest
B1B92-11 Seat Recline Motor Relay - Circuit short to ground
  • Circuit short to ground
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat recline motor relay circuit
B1B92-15 Seat Recline Motor Relay - Circuit short to battery or open
  • Circuit short to power or open circuit
 Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the seat recline motor relay circuit
B1B93-31 Seat Recline Motor Speed/Position Sensor - no signal
  • Harness/connector problem
  • No signal from sensor
  • Sensor/motor malfunction
  • Check the seat wiring harness/connectors for security/integrity
  • Refer to the electrical circuit diagrams and check the seat recline motor speed sensor circuit. Repair circuit as required. Clear DTC and retest
B1B94-24 Seat Height Up Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1B95-24 Seat Height Down Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1B96-24 Seat Slide Forward Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1B97-24 Seat Slide Backward Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1B98-24 Seat Tilt Up Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1B99-24 Seat Tilt Down Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1C00-24 Seat Recline Up Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1C01-24 Seat Recline Down Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1C02-24 Memory Store Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1C03-24 Memory #1 Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1C04-24 Memory #2 Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
B1C05-24 Memory #3 Switch - Signal stuck high
  • Signal stuck high
  • Switch malfunction
 Check the switch function. Check the seat wiring harness/connectors for security/integrity. Refer to the electrical circuit diagrams and check the switch circuit
U0010-88 Medium speed CAN Communication Bus - Bus off
  • CAN signal fault.
  • Possible open circuit.
  • Faulty Control module.
 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
U0140-00 Lost Communication With Body Control Module - No sub type information
  • No sub type information
 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 Central Junction Box and Seat Control Module
U0142-00 Lost Communication With Body Control Module "B" - No sub type information
  • No sub type information
 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 Central Junction Box and Seat Control Module
U0155-00 Lost Communication With Instrument Panel Cluster (IPC) Control Module - No sub type information
  • No sub type information
 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 Instrument Panel Cluster and Seat Control Module
U0199-00 Lost Communication With "Door Control Module A" - No sub type information
  • No sub type information
 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 Door Control Module and Seat Control Module
U0300-00 Software Incompatibility - No sub type information
  • No sub type information
 Check the module configuration using the approved diagnostic system. Check that the module software versions are the latest release and update as necessary
U1A14-49 CAN Initialization Failure - internal electronic failure
  • Module internal electronic failure
 Suspect Seat Control Module. Refer to the warranty policy and procedures information if a module is suspect
U1A4C-00 Build / End of Line mode Active - No sub type information
  • Vehicle configuration incorrect
 Check the module configuration using the approved diagnostic system
U3000-49 Control Module - Internal electronic failure
  • Internal electronic failure

    Internal RAM/ROM error

 Renew the Control module. Refer to the warranty policy and procedures information if a module is suspect
U3001-46 Control Module Improper Shutdown - calibration / parameter memory failure
  • Calibration/parameter memory failure
  • Any motor activation (slide, height and recline axis) has been interrupted by an control module power disconnection while in manufacturing mode
 Clear the DTC and retest. If the problem persists, configure the module using the manufacturers approved diagnostic system
U3002-81 Vehicle Identification Number - invalid serial data received
  • Invalid serial data received
 Configure the module using the manufacturers approved diagnostic system
U3003-16 Battery Voltage - Circuit voltage below threshold
  • Battery voltage below threshold (8 volts)
 Check vehicle battery and charging system. Refer to the relevant information. Refer to the electrical circuit diagrams and check the power supply circuits to the module
U3003-17 Battery Voltage - Circuit voltage above threshold
  • Battery voltage above threshold
 Check vehicle battery and charging system. Refer to the relevant information. Refer to the electrical circuit diagrams and check the power supply circuits to the module
scientia non olet · About LEMON Manuals