All power windows don't work
You may have to keep looking for another broken wire. To the driver's master switch, a tan wire looks like the hot wire (feed) for the switch. And a black wire is ground, originating at the master switch and going back into the cabin with the wire harness, and then to a nearby ground source, probably behind the left kick panel. If you pull the master switch off, key on,, check for power on the tan wire terminal of the switch connector. Use a test light or a voltmeter. Now if you have a hot wire on the connector, put one volt meter lead on the hot wire terminal and the negative lead onto the black wire terminal. If ground is good, voltmeter will read battery voltage. If ground is lost, voltmeter will show nothing. Same with test light-check for a hot wire with key on. If yes, put test light lead on hot wire and use probe to touch ground-if ground is good, tester will light up. Alternatively, you could remove the left kick panel and check the security of the ground to frame there.
The only place I know for a wiring diagram would be a repair manual. Haynes manuals are about the best (about $25 at parts stores), short of a factory service manual for big bucks.
If still no luck with windows, and no hot wire with key on, pull the circuit breaker for the windows on the fuse panel under dash. With key on,. one of those terminals for the circuit breaker should show power. Ground a test light and probe both terminals to check for power. If no power there, check under hood fuses or fuse links that feed the fuse box. If CB has power available, well, that's the feed for the tan wire-sounds like either the tan wire or the black ground wire may have a break. If power to switch, check ground wire.
As a last resort, try a new circuit breaker if powered at CB terminal but nothing at driver's switch. If power is to switch on tan wire, and ground is working, consider that you may have gotten a defective master switch-not likely, but known to happen.
May 09, 2013 |
2003 Jeep Grand Cherokee