Test U: DTC C1948 - Front Driver's Seat Track Position Switch Circuit Resistance Out of Range

PINPOINT TEST U: DTC C1948 - FRONT DRIVER'S SEAT TRACK POSITION SWITCH CIRCUIT RESISTANCE OUT OF RANGE

U1-U3:

U4-U5:

CAUTION: When installing a new restraints control module (RCM), always make sure the correct RCM is being installed. The RCM 40-pin connector is keyed differently for vehicles with side air curtains and side air bags than the 40-pin connector for vehicles without side air curtains and side air bags. Do not force the 40-pin connector onto the RCM. If the connector is forced onto the RCM, damage to the RCM and/or connector will occur.

NOTE: Due to the seat track position sensor being a Hall-effect type sensor, this pinpoint test will be diagnosing a current out of range fault instead of the current DTC definition for a resistance out of range fault.

Normal Operation
The restraints control module (RCM) monitors the driver seat track position sensor circuits. If the RCM detects a current out of range condition, it will store diagnostic trouble code (DTC) C1948 in memory and illuminate the air bag indicator.

Possible Causes
A driver seat track position sensor circuit resistance out of range fault can be caused by:
- damaged wiring, terminals or connectors.
- a faulty driver seat track position sensor.
- RCM is faulted.