Initial Inspection and Diagnostic Overview

1. Verify customer concern by operating the power seat system.
2. Visually inspect the components of the power seat system.

Mechanical
- Damaged air tubes/hoses.
- Improper air hose routing.
- Damaged front seat back pad adjuster or front seat connectors bolster pad adjuster.
- Damaged lumbar/bolster support switch.

Electrical
- Blown fuse:
+ 30 A POWER SEAT.
- Damaged wiring.
- Damaged switches.
- Damaged motors.

3. Check the wiring harness for obvious signs of shorts, opens, bad connections, or damage.
4. If one of the power seat position functions (slide, tilt, lift) does not work, check for opens/damage in the pigtail circuit wires coming off the seat back control switch that lead to the seat regulator motors.
5. Check the lumbar/bolster support system for disconnected, kinked, or damaged air tubes/hoses. Also, look for a leaking/damaged front seat back pad adjuster or front seat bolster pad adjuster.
6. If an obvious cause for malfunction can be found, correct the cause of the malfunction (if possible) before proceeding further.
7. If the fault is not visually evident, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures