rear window switch bad. window wont roll down?
Could be switch or motor. Test motor with 12v power applied to terminals.
My '88 rear window became non functional. THanks to the 4runner tips and tricks page I realised most circuits operate by grounding out the circuit. in other words - the window switches don't apply power - they complete the circuit by grounding. So i pulled out my rear window switch and clipped my $6 tester (a clip, connected to a wire, connected to a screwdriver looking thing with a lightbulb in the handle) to a ground and touched the connections on THE BACK of the switch. That is how I operate my window now. Very dependable.
You can try Switch Doctor, they have free life warranties on all aftermarket 4runner switches: http://www.switchdoctor.net/index.php?p=catalog&mode=search&search_in=all&search_str=4runner
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