Test A - Power Seat Inoperative
- Turn ignition off. Check POWER SEAT (30-amp) fuse located in underhood fuse panel. If fuse is okay, go to step 4). If fuse is blown, go to next step.
- Replace POWER SEAT (30-amp) fuse. If fuse blows again, go to next step. If fuse does not blow, go to step 4).
- Turn ignition off. Disconnect both power seat switch connectors. Remove 30-amp POWER SEAT fuse. Measure resistance of White/Black wire between fuse panel and seat back control switch connector. Measure resistance of White/Black wire between seat back control switch connector and ground. If resistance is less than 5 ohms between fuse box and switch, and more than 10 k/ohms between switch and ground, replace POWER SEAT fuse and go to next step. If resistance is more than 5 ohms between fuse panel and switch, and less than 10 k/ohms between switch and ground, repair White/Black wire for open or short to ground. See WIRING DIAGRAM .
- Test power seat switch. See POWER SEAT SWITCH under COMPONENT TESTS. If switch tests okay, go to next step. If switch faulty, replace seat control switch and housing.
- Turn ignition off. Disconnect power seat back control switch connector. Measure voltage between ground and power seat back control switch connector White/Black wire. If voltage is more than 10 volts, repair Black wire between connector and ground. If voltage is less than 10 volts, repair open in White/Black wire. See WIRING DIAGRAM .