YodaPala

nothing works at all. even the back glass wont roll down. i got a new master switch and installed it and nothing. what are the common problems for the 3rd gen 4runners? (its not locked out btw)

FJHammerHead

iTrader: (1)

Broken wires between body and hatch. I'm sure you will find what your looking for....

YodaPala

Where at? I pulled up those rubber grommets and all wiring looks good so far, is there a particular area to inspect?

TheDurk

First, don't rely on a visual check of fuses. Use a known good fuse or put a test light or meter to BOTH ends of the fuse. Check 30A POWER fuse and 10A ECU-IG fuse.

If no joy, try swapping POWER relay with another relay. Failing that, I can take you through some real troubleshooting but I need your year, model, engine. You list your mods but not your rig.

This may help:

wyoming9

iTrader: (1)

So after swapping out your non working Master Switch you still have another problem.

Have you checked the power sources and the grounds??

looked for corroded or arced wires where they attach to switches and relays??

Just what parts of the circuit have you tested??

YodaPala

There is 12 volts at about 4 terminals at the molded plug. There was a little green corrosion (copper in the upper left side of the plug, but not too bad)

YodaPala

Where exactly are the relays located? It is a 1999 4runner sr5 power windows, locks, mirrors, and heated mirrors. 5vz engine.

YodaPala

Where are the power window relays located in a 1999 4runner?????

YodaPala

Bump, srsly? No one knows?

TheDurk

Patience, grasshopper. See p. 24 of attached, top right corner of panel. That relay should interchange with several relays in the engine relay box, such as FOG, DEFOG, PWR OUTLET, etc. Also EFI, but don't use that one.

Bikeveloce

I've got the exact same problem now, and this thread is very helpful! This should be in a sticky somewhere.

Bikeveloce

One more thing: I think people reading this thread should see this one: https://www.yotatech.com/forums/f2/9...please-132635/