Flow of Diagnosis

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

VISUAL INSPECTION CHART

Electrical
^ Fuse junction panel Fuse 3 (20 A)
^ Damaged wiring harness
^ Loose or corroded connections
^ Electronic Automatic Temperature Control (EATC) module
^ Driver Seat Module (DSM)
^ Remote Anti-theft Personality (RAP) module
^ Generic Electronic Module (GEM)
^ Restraint Control Module (RCM)
^ Powertrain Control Module (PCM)
^ Air suspension control module
^ Anti-lock brake control module
^ Instrument cluster

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 the 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 position.
If NGS Tester still does not communicate with the vehicle, go to Pinpoint Test M. M: No Module /Network Communication - No Power To NGS
4. Go to Pinpoint Test PC. System Precheck