Test A: The Power Seat Is Inoperative - Vehicles Without SIR

PINPOINT TESTS

CAUTION: Electronic modules are sensitive to electrostatic discharge. If exposed to these charges, damage may result.

Refer to Inspection and Verification and the Symptom Chart for direction to the appropriate Pinpoint Test. Inspection and Verification Symptom Related Diagnostic Procedures

PINPOINT TEST A: THE POWER SEAT IS INOPERATIVE - VEHICLES WITHOUT SIR

A1:

A2:

Normal Operation
The seat control switch is powered by battery voltage to seat control switch circuit 566 (DG) (driver) or circuit 51 (BK/WH) (passenger) and is supplied ground on circuit 57 (BK). The seat control switch supplies switched battery power and ground directly to the seat bidirectional motors.

Possible Causes
An inoperative power seat can be caused by:
- fuse.
- circuit 566 (DG) (driver) or circuit 51 (BK/WH) (passenger) open or short to ground.
- circuit 57 (BK) open.
- seat control switch.