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Strange window regulator behavior - Need troubleshooting help

jammy

New member
'99 GP GT Sedan

I replaced LR window regulator because the old one stopped working. New one doesn't work either, but I now remember that it has the same problem as the old one.

Switch in LR door will allow the window to go down, but not up! Regulator is now fully down. I can hear a motor click if I press the "down" side of the switch, but there is no sound when I press the "up" side. HOWEVER, the switch at the driver's panel does nothing - no sound up or down.

Driver's door lock switch works for LR door. All three other regulators are working fine.

Does anyone have a wiring diagram for the window regulators? I'm suspecting the driver's switch for LR window or a loose wire somewhere between.

Also, if someone can tell me how to hotwire the LR regulator motor to check it out independent from the switches and wiring harnesses, I could eliminate the regulator.

TIA
 


Fixed! It was a bad switch. I used the switch from the RR side to verify.

I disassembled the switch and found that one of the contacts was oxidized. Scraped off the oxidization and ... bang, it's good!!
 
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