All Windows Do Not Operate
- Disconnect master window switch connector C2. Turn ignition switch to RUN position. Connect test light between ground and master window switch and harness connector C2, terminal "C" (Brown wire). See Fig 1
. If test light illuminates, go to next step. If test light does not illuminate, go to step 3).
- Connect test light between master window switch connector terminals "A" (Black wire) and "C" (Brown wire). If test light illuminates, go to step 4). If test light does not illuminate, go to step 5).
- Using test light connected to ground, backprobe right instrument panel wiring junction harness block connector C3, terminal A8 (Brown wire). If test light illuminates, go to step 6). If test light does not illuminate, go to step 7).
- Replace master window switch. Recheck system operation.
- Repair open in Black wire between master window switch and ground splice pack G301. Recheck system operation.
- Repair open in Brown wire between right instrument panel wiring harness junction block and master window switch. Recheck system operation.
- Replace right instrument panel wiring harness junction block. Recheck system operation.
Courtesy of GENERAL MOTORS CORP.