Flow of Diagnosis

1. Verify the customer concern.
2. Visually inspect for obvious signs of electrical damage. Refer to the following chart:

VISUAL INSPECTION CHART

Electrical
^ Fuses
^ Damaged wiring harness
^ Loose or corroded connectors
^ Four-Wheel Anti-lock Brake System (4WABS) module
^ Electronic Crash Sensor (ECS) module
^ Generic Electronic Module (GEM)/Central Timer Module (CTM)
^ Powertrain Control Module (PCM)
^ Remote Anti-theft Personality (RAP) module

3. If the concern remains after the inspection, connect New Generation STAR (NGS) Tester to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from NGS Tester menu. If NGS Tester does not communicate with the vehicle:
^ Check that the program card is properly installed.
^ Check the connections to the vehicle.
^ Check the ignition switch is in RUN.

If NGS Tester still does not communicate with the vehicle, go to Pinpoint Test G. G: No Module/Network Communication

4. Go to Pinpoint Test PC. System Precheck