Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the multifunction or ignition switch.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical and electrical damage.

The integrated multifunction switch is mounted to the LH side of the steering column and controls the turn signals, hazard flasher, windshield wiper/washer control, and headlamp dimmer/flash-to-pass.

The key release button is equipped with manual transmissions only.

The ignition switch is mounted below the steering column and is activated by rotating the key lock cylinder on the steering column.
3. If the concern remains after the inspection, connect the 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 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 manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If the NGS responds with:
- CKT914, CKT915 or CKT70=ALL ECUS NO RESP/NOT EQUIP, diagnose Multiplex Communication Network concerns.
- NO RESP/NOT EQUIP for GEM, go to Pinpoint Test A. Test A: No Communication With Generic 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 GEM.
6. If the DTCs retrieved are related to the concern, go to GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics. Diagnostic Trouble Code Tests and Associated Procedures
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures