Test W: LFC 49/DTC C1981 - Seat Track Position Sensor Circuit Fault

PINPOINT TEST W: LFC 49/DTC C1981 - DRIVER SEAT TRACK POSITION SENSOR CIRCUIT FAULT

W1-W2:

W2-W3:

W4-W7:

W8:

Normal Operation
The seat track position sensor informs the restraints control module (RCM) of the driver seat position.

The RCM monitors the driver seat track position sensor circuits. If the RCM detects an open or short to battery, it will store diagnostic trouble code (DTC) C1981 in memory and flash lamp fault code (LFC) 49 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A driver seat track position sensor open circuit or short to battery fault can be caused by:
- wiring, terminals or connectors.
- a faulty seat track position sensor.
- a faulted RCM.