Driver Seat Module (DSM) fault code (Freelander 2)

Driver's seat unit

NOTE: If a module or component failure is suspected and the vehicle remains under manufacturer's warranty, refer to the Warranty Guide (Section B1.2) or determine if there is a previously approved special program in effect before replacing the component.

NOTE: Generic scan tools may not be able to read the codes listed or may only be able to read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7-digit code to identify the fault (the last 2 digits provide additional information readable by the manufacturer-approved diagnostic system).

NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) with three decimal places of accuracy and a valid calibration certificate. When testing resistance, be sure to include the resistance of the DMM leads.

NOTE: Before starting diagnostic programs using fault location tests, check and correct basic faults.

NOTE: Inspect the connectors for signs of water ingress and their pins for damage and/or corrosion.

NOTE: If DTCs are set and the fault is not present after performing the troubleshooting tests, an intermittent problem may be the cause. Be sure to check for loose connections and corroded terminals.

Description and operation

For a detailed description of the driver's seat system, refer to the relevant section "Description and Operation" of the workshop manual. For additional information, refer to the chapter: Seats (501-10 Seat, Description and Operation).

DTC	Description	Possible reason	Action
B1C02-24	Save settings button	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1C03-24	Memory cell button 1	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1C04-24	Memory cell button 2	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1C05-24	Memory cell button 3	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B94-24	Seat lift button	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B95-24	Seat down button	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B96-24	Seat forward movement button	Constantly high signal level	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B97-24	Seat Backward Move Button	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1C00-24	Seat backrest recline switch	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1C01-24	Seat backrest tilt increase switch	The switch in the switch block is stuck. Short circuit to ground.	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B86-15	Seat Vertical Adjustment Motor Relay	Seat Height Adjustment Motor Circuit - Short to Power	Refer to the electrical diagrams to check the seat height adjustment motor circuit for a short to power.
B1B86-11	Seat Vertical Adjustment Motor Relay	Seat Height Adjustment Motor Circuit Short to Ground	Refer to the electrical diagrams to check the seat height adjustment motor circuit for a short to ground.
B1B88-15	Relay for electric motor of longitudinal adjustment of the seat	Seat longitudinal adjustment motor circuit - short circuit to power supply	Refer to the electrical diagrams to check the seat forward/back adjustment motor circuit for a short to power.
B1B88-11	Relay for electric motor of longitudinal adjustment of the seat	Seat Longitudinal Adjustment Motor Circuit - Short to Ground	Refer to the electrical diagrams to check the seat fore/aft adjustment motor circuit for a short to ground.
B1B92-15	Seat back recline motor relay	Seat Recline Motor Circuit - Short to Power	Refer to the electrical diagrams to check the seat recline motor circuit for a short to power.
B1B92-11	Seat back recline motor relay	Seat Recline Motor Circuit Short to Ground	Refer to the electrical diagrams to check the seat recline motor circuit for a short to ground.
B1B87-31	Electric seat height adjustment speed/position sensor	No signal	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B89-31	Electric seat longitudinal adjustment speed/position sensor	No signal	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
B1B93-31	Seat back tilt adjustment speed/position sensor	No signal	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
U1A14-49	CAN initialization failure	Internal failure of electronic equipment	Install a new driver seat module, refer to the new module installation note at the top of the DTC index.
U0010-88	Medium speed CAN communication bus	Bus shutdown	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
U0140-00	Lost connection with central distribution box	Lost connection with central distribution box	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
U0199-00	Lost Communication with Driver Door Module (DDM)	Lost Communication with Driver Door Module (DDM)	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
U1A4C-68	The installation/configuration mode is active when the vehicle leaves the assembly line.	Factory mode was not removed	Place the driver seat module in user mode using the manufacturer approved diagnostic system.
U3000-49	Control unit	Internal failure of electronic equipment	Install a new driver seat module, refer to the new module installation note at the top of the DTC index.
U3003-16	Battery voltage	Circuit voltage below limit	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.
U3003-17	Battery voltage	Circuit voltage is above limit	Using the manufacturer approved diagnostic system, perform the troubleshooting tests for this DTC.