Circuit Testing
- Turn ignition on. Using a voltmeter, backprobe between ground and pin No. 12 (Red /Black wire) at master power window switch. If battery voltage is present, go to next step. If reading is not as specified, repair open or short to ground in Red /Black wire between PWIND fuse and master power window switch. Retest system.
- Turn ignition off. Using an ohmmeter, backprobe between ground and pin No. 7 (Black wire) at master power window switch. If continuity is present, replace master power window switch. If no continuity is present, repair open in ground circuit (Black wire) between master power window switch and chassis ground. Retest system.