Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the horn.
2. Visually inspect for obvious signs of mechanical and electrical damage.







VISUAL INSPECTION CHART

3. If the concern remains after the inspection, connect the New Generation STAR (NGS) Tester to the data link connector located beneath the instrument panel and select the vehicle to be tested from the NGS menu. If the NGS 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.

4. If the NGS still does not communicate with the vehicle, refer to the New Generation STAR Tester.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If the NGS responds with:
^ CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network (Information Bus).
^ NO RESP/NOT EQUIP for instrument cluster, GO to Pinpoint Test B. Test B: No Communication With the Instrument Cluster
^ NO RESP/NOT EQUIP for FEM, GO to Pinpoint Test A. Test A: No Communication With the Front Electronic Module
^ SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster and FEM. FEM Diagnostic Trouble Code (DTC) Index

6. If the DTCs retrieved are related to the concern,
go to the Instrument Cluster DTC Index Instrument Cluster Diagnostic Trouble Code (DTC) Index
or go to the FEM DTC Index to continue diagnostics. FEM Diagnostic Trouble Code (DTC) Index
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures

NOTE: The FEM and instrument cluster must be reconfigured upon replacement. Refer to Module Communications Network (Information Bus).