Diagnostic Test

1) WINDOW REGULATOR MODULE
With the scan tool, read DTCs.

Are there any Power Window System DTC's?

Yes
1. Refer to the DTC in DIAGNOSTIC CODE INDEX table and perform the appropriate test.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE - BODY VERIFICATION TEST - VER 1) , also see (STANDARD PROCEDURE - PCM/ECM/SKREEM PROGRAMMING) .
No
1. Go to step 2).
2) WINDOW REGULATOR MODULE
Does the window drop or jerk during opening?

Yes
1. Replace the Window Regulator Module Assembly according to Service Information.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE - BODY VERIFICATION TEST - VER 1) , also see (STANDARD PROCEDURE - PCM/ECM/SKREEM PROGRAMMING) .
No
1. No problem found at this time. Try the Power Window several times and verify customers complaint.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE - BODY VERIFICATION TEST - VER 1) , also see (STANDARD PROCEDURE - PCM/ECM/SKREEM PROGRAMMING) .