Initial Inspection and Diagnostic Overview

Note: The FEM must be reconfigured upon replacement.

1. Verify the customer's concern by operating the vehicle to duplicate the condition.

Visual Inspection Chart:

2. Inspect to determine if one of the above mechanical or electrical concerns apply.
3. If the concern remains after the inspection, connect the 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 the NGS Tester 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 Tester still does not communicate with the vehicle, refer to the New Generation STAR Tester manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If NGS Tester responds with:
- CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network.
- 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 the self-test diagnostics for the FEM.
6. If the DTCs retrieved are related to the concern, go to FEM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics.Symptom Related Diagnostic Procedures