Question about 1987 GMC Jimmy
Anything can go bad, but to my knowledge circuit breakers seldom do. If you have a test light, pull the circuit breaker and probe both terminals for a power signal, with the key on. One terminal should show voltage with key on. If not, check the power distribution box for a blown maxi-fuse, or the wiring from that box to your fuse panel.
BTW, no, no relays are in the window circuit. So if the circuit breaker has power to it, put it back in and check for power on the driver's door master switch-one wire on the master should have voltage with key on. If no hot wire to the master switch, check inside the door openings for a broken wire. If you do have one hot wire there. check the power windows ground-the ground wire for the power windows originates at the master switch and goes back into the cabin to a nearby ground. Put one lead of the test light on the hot wire (key on), and probe the ground terminal at the master switch-if your ground is good, the test light will light up. If the ground is lost, no light. Check for a broken ground wire in the door opening, and/or find the ground and see if it is bad. If the master switch has a hot wire and a good ground wire, replace the master switch.
Posted on Apr 25, 2013
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Posted on Jan 02, 2017
SOURCE: 2000 Jimmy power windows
I work on these all the time, Your switch is bad Drivers door, go pick one up at a wrecking yard is the cheapest way, We do this daily, Or go to car-parts.com and order it
Posted on Jan 31, 2009
well the wiring for the doors and the windows run of ontop the floor by the rocker panel. opem the driver door remove the bottom plastic trim piece that follows the weather stripping and carpet, check the wiring for damage such as water chaffed wiring or cut wiring, i dont think it would be under the seat as the power door lock wiring will not be under there
Posted on Sep 27, 2009
Try this research site. Site requires a log-on. Just get a library card from your local library and enter the code. Great info site as well as wiring schematics!
Posted on Oct 17, 2009
if they only stoped working on the passengers side I would check the wirring going into passengers side door for a broken wire, or right at the passengers side kick panel.
Posted on Nov 18, 2009
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