Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the wiper/washer system.
2. Visually inspect for obvious signs of mechanical and electrical damage.

VISUAL INSPECTION CHART

Mechanical
^ Hoses to windshield washer pump
^ Wiper linkage

Electrical
^ CJB Fuse 39 (5 A)
^ CJB Fuse 26 (30 A)
^ Wiring harness
^ Loose or corroded connector(s)
^ Relays
^ Motors
^ Multifunction switch
^ [1][2][3][4]Generic Electronic Module (GEM)

3. If the concern remains after the inspection, connect New Generation STAR (NGS) Tester to the data link connector activated beneath the instrument panel and select the vehicle to be tested from the NGS menu. If 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 NGS Tester still does not communicate with the vehicle, review 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 Information Bus.
^ NO RESPONSE/NOT EQUIPPED for GEM, go to Pinpoint Test A. 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 to GEM 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