firerunner

First post. 90 4runner 3.0. Pwoer windows, wipers and gauges not working. checked all fuses, relays and circuit breaker. no power to the gauge or wiper fuses. I stumped, hoping you guys can help me out.

RJR

The ignition switch has two contacts on it. Contact #1 supplies power to all of the things you've mentioned plus a few more. Contact #2 supplies power to the ECU and ignition system so the engine will run.

There are separate fuses for each contact. A 40amp fuse for #1 and a 30 amp fuse for #2. I think they are in the underhood fuse box on the passenger side fender. I'd start by checking there. If those fuses are good you may just have a bad ignition switch. Try tracing the wiring as far as you can to see where the voltage gets lost.

Measure the voltage at the fuses. It should be a steady 12V. If 12V isn't present on one of the 40A fuse terminals, then suspect the 80-100amp fusible link has blown. That's just a piece of special wire, not really a fuse. Not quite sure where it's located, but there's info on this forum about it.

firerunner

Thanks i will look into that