Communications Network

INSPECTION AND VERIFICATION

1. Verify the customer concern.
2. Visually inspect for obvious signs of electrical damage.

VISUAL INSPECTION CHART

Electrical
- Central junction box (CJB) Fuse ROOM (10A)
- Wiring harness
- Connectors
- Instrument cluster (IC)
- Anti-lock brake system (ABS) control module
- Restraint control module (RCM)
- Generic electronic module (GEM)
- Powertrain control module (PCM)

3. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position is in RUN.

If the diagnostic tool still dues not communicate with the vehicle, go to Pinpoint Test H. Test H

4. Go to Pinpoint Test PC. Pinpoint Test PC (Precheck)