Flow of Diagnosis

1. Verify the customer's concern by operating the windshield wiper and washer system to duplicate the condition.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:

VISUAL INSPECTION CHART

Mechanical
- Windshield wiper blade missing or damaged.
- Binding windshield wiper pivot arm.
- Binding windshield wiper mounting arm and pivot shaft.
- Empty windshield washer reservoir.
- Kinked or broken windshield window washer hoses.

Electrical
- Open Fuse: fuse junction panel Fuse 10 (30A).
- Damaged windshield wiper motor.
- Damaged windshield washer pump.
- Open connectors.
- Corroded connectors.
- Inoperative multi-function switch.
- Thermal breaker internal to the wiper motor.
- Circuitry.

3. If inspection reveals obvious concerns that are readily identified, service as required.
4. If the concern remains after inspection, connect the Rotunda New Generation Star (NGS) Tester to the Data Link Connector (DLC) located beneath the instrument panel to perform DATA LINK DIAGNOSTIC TEST. If the New Generation Star Tester responds with NO RESPONSE/NOT EQUIPPED for steering column/ignition/lighting control module, go to Pinpoint Test A. A: No Comm. with (SCIL) Control Mod.
If the DATA LINK DIAGNOSTIC TEST is passed for the Steering Column/Ignition/Lighting Control Module, retrieve continuous Diagnostic Trouble Codes (DTCs) and execute Self Test Diagnostics for Steering Column/Ignition/Lighting Control Module.
5. If self test is passed and no diagnostic trouble codes are retrieved, go to the Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures
6. If diagnostic trouble codes are retrieved, go to the Steering Column/Ignition/Lighting Control Module Diagnostic Trouble Code Index to continue diagnostics. Diagnostic Trouble Code Tests and Associated Procedures
7. If the steering column/ignition/lighting control module cannot be accessed by the New Generation Star Tester, go to Pinpoint Test A. A: No Comm. with (SCIL) Control Mod.