Initial Inspection and Diagnostic Overview

1. The power windows system is a Generic Electronic Module (GEM) controlled system.
2. Verify the customer concern by operating the power window system.
3. Visually inspect for obvious signs of mechanical and electrical damage.

VISUAL INSPECTION CHART

Mechanical
^ Window regulator electric drive
^ Window glass
^ Vent window motor

Electrical
^ Central Junction Box (CJB) Fuse:
- 6 (5 A)
- 8 (5 A)
- 15 (5 A)
- 17 (10 A)
- 18 (5 A)
- 20 (5 A)
^ Battery Junction Box (BJB) Fuse:
- 103 (50 A)
- 110 (30 A)
- 116 (40 A)
- 601 (30 A)
^ Relay(s)
^ Window regulator control switch
^ Window regulator electric drive
^ Vent window switch
^ Vent window motor
^ Heated mirror
^ Heat grid switch
^ Heat backlite grid
^ CJB
^ GEM
^ Circuitry
^ Wiring harness
^ Loose or corroded connector(s)

4. If the concern remains after the inspection connect 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 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.
5. If NGS still does not communicate with the vehicle, refer to New Generation STAR Manual.
6. 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 RESP/NOT EQUIP for the 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.
7. If the DTCs retrieved are related to the concern, go to the GEM DTC Index to continue diagnostics. Diagnostic Trouble Code Tests and Associated Procedures
8. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures