Diagnostic Routine A

Diagnostic Routine A

Diagnostic Overview

The Power Seat is Inoperative - Driver, Without Power Recline

Refer to Wiring Diagram Set 120 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

When the driver seat control switch is activated, voltage and ground is supplied to the applicable seat track motor to move the seat to the desired position.

Visual Inspection and Diagnostic Pre-checks

Verify BJB (Battery Junction Box) fuse 23 (30A) is OK.

Pinpoint Test

NOTE: The SRS (Supplemental Restraint System) must be fully operational and free of faults before releasing the vehicle to the customer.

1. CHECK THE DRIVER SEAT CONTROL SWITCH FOR VOLTAGE

1. WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

Ignition OFF.

2. Disconnect: Driver Seat Side Air Bag C3051.

3. Disconnect: Driver Seat Control Switch C360.

4. Measure:





Is the voltage greater than 11 volts?








2. CHECK THE DRIVER SEAT CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN

1. Measure:





Is the resistance less than 3 ohms?








3. CHECK FOR SRS (Supplemental Restraint System) DTCs (Diagnostic Trouble Codes)

1. WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

Ignition OFF.

2. Connect: Driver Seat Side Air Bag C3051.

3. Connect: Driver Seat Control Switch C360.

4. Ignition ON.

5. Using a scan tool, clear the RCM (Restraints Control Module) DTCs (Diagnostic Trouble Codes).

6. Cycle the ignition OFF then ON.

7. Using a scan tool, perform RCM (Restraints Control Module) self-test.

Are any RCM (Restraints Control Module) DTCs (Diagnostic Trouble Codes) retrieved during self-test?