Test W

PINPOINT TEST W: LFC 49/DTC C1948 - SEAT TRACK POSITION SWITCH CIRCUIT RESISTANCE OUT OF RANGE

Test W1-W2:

Test W2-W4:

Test W5-W7:

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 seat track position sensor informs the RCM of the driver seat position.

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 flash lamp fault code (LFC) 49 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A seat track position sensor current out of range fault can be caused by:
- a faulty seat track position sensor.
- RCM is faulted.