Flow of Diagnosis

1. Verify the customer concern by operating the system in question.
2. Visually inspect for obvious signs of electrical damage.

Electrical
^ Damaged wiring harness.
^ Loose or corroded connections.
^ Damaged 4-Wheel Anti-Lock Brake System (4WABS) module.
^ Damaged Remote Anti-Theft Personality (RAP) module.
^ Damaged Generic Electronic Module (GEM).
^ Damaged Integrated Air Bag Module (IABM).
^ Damaged Powertrain Control Module (PCM).

3. If the concern is not visually evident, perform the System Precheck. System Precheck