| Sign of malfunction | Possible reason | Action |
| There is no movement of the driver's seat by command from the driver's seat switch panel (including the position stored in memory is not activated) and there is no movement of the passenger's seat by command from the passenger's seat switch panel | The comfort function relay, which blocks the driver's seat and passenger seat control functions, is disabled | Insert the key and turn on the ignition. Check the operation of the seat control functions by command from the driver's seat and passenger's seat switch panels |
| The driver's seat does not move when commanded from the driver's seat switch panel (including the position stored in memory is not activated) | Driver Seat Switch Panel Ground Circuit Open | Check SW 1 ground connection between driver seat switch panel and DSM for open |
| The driver's seat does not move along one or more axes when commanded from the switch panel or the position memory function does not work correctly | Seat switch jammed or short to battery + or ground at seat switch panel/DSM connection | Check for the following DTC codes for the DSM module. B1B9424-seat lift switch. B1B9524-seat lowering switch. B1B9624-switch for moving the seat forward. B1B9724-switch for moving the seat backwards. B1C0024-seat tilt up switch. B1C0124-seat tilt down switch. B1C0224-memory entry switch. B1C0324 - Memory cell switch # 1. B1C0424 - Memory cell switch # 2. B1C0524 - Memory cell switch # 3. Check if the driver's seat switch is jammed or if there is a short circuit to the battery voltage or to the ground connections of the driver's seat switch panel/DSM module |
| The axial movement of the driver's seat on command from the switch panel occurs in a discrete mode with a delay (the seat moves along the axis for a short distance when the switch is pressed for more than 2 seconds, and then stops. This condition can occur on ANY axis of the seat, i.e. when moving forward/backward, down/up, or changing the angle of inclination). | The Hall sensor of the drive motor of the corresponding axis is not connected or does not receive the expected signals | Check for the following DTCs associated with the DSM: B1B8731 - Seat Height/Tilt Motor Speed Sensor B1B8931 - Seat Pan Motor Speed/Position Sensor B1B9331 - Seat Tilt Motor Speed/Position Sensor If present, check the Hall Effect sensor feedback connection(s) between the seat motor(s) and the seat module, and check the Hall Effect sensor ground connections for the affected axis. After correcting the Hall Effect sensor connection, press and hold the affected axis travel switch for more than 2 seconds. Now, when the switch is held down, the axis should move as long as the switch is pressed. Recalibrate the affected seat. |
| The driver's seat axial movement on command from the switch panel occurs in discrete mode. When a command to move the seat on any axis is received from the seat switch panel, the seat immediately moves on the requested axis for a short distance and then stops. This condition occurs on a command to move the seat on ALL axes (horizontal, height or tilt). Communication via MS CAN network is not possible | The vehicle has a faulty MS CAN network | Perform CAN network integrity tests using the manufacturer approved diagnostic system. |
| The driver's seat movement on command from the switch panel occurs in a discrete mode. When a command to move the seat along any axis is received from the seat switch panel, the seat immediately moves along the requested axis for a short distance and then stops. This condition occurs when a command to move the seat along ALL axes (horizontal, height or tilt) is received. | DSM module is disconnected from MS CAN bus | Check for DTC U020808 for Instrument Cluster: Lost Communication with Driver Seat Module. If this DTC is present, check the driver seat module CAN bus connections. |
| The driver's seat movement on command from the switch panel occurs in a discrete mode. When a command to move the seat along any axis is received from the seat switch panel, the seat immediately moves along the requested axis for a short distance and then stops. This condition occurs when a command to move the seat along ALL axes (horizontal, height or tilt) is received. | Driver Door Module (DDM) is disconnected from the CAN bus | Check for DTC U019900 for DSM: Lost Communication with DDM. If this DTC is present, check the DDM CAN bus connections. |
Table of signs of malfunction (Freelander 2)
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