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Tests AC: DTC C1946 - Driver Seat Track Position Sensor Circuit Open

PINPOINT TEST AC: DTC C1946 - DRIVER SEAT TRACK POSITION SENSOR CIRCUIT OPEN


AC1-AC2:






AC2-AC5:






AC5-AC7:






Lamp Fault Codes (LFCs)







The lamp fault code (LFC) indicates the specific fault associated with diagnostic trouble code (DTC) C1946:

NOTE: The secondary warning chime will be activated along with the primary warning indicator when a fault is detected.

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 circuit fault, it will store DTC C1946 in memory, flash a LFC on the air bag indicator and the secondary air bag warning chime will be activated.

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