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#1
07-06-2004, 08:53 PM
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RKE/ Power door locks HELP!!?!
I am having trouble with my RKE/PDL. I have a 99 Yukon with RKE (loaded minus leather). MY driver side door lock stopped working, the lock/unlock switch still operates the other doors, and the other door lock/unlock button still works all but driver door. My remote will not lock the driver door but does the others just fine. It will unlock the driver door (it has driver priority unlock) as well as the other doors. I checked the voltage to the driver side accuator and tan wire to ground is 12volts during unlock and the gray wire to ground has 12volts to ground during lock. the tan wire to gray wire has no voltage present in either lock/unlock. I naturally assumed I must have a bad relay (2-wire accuator uses relay to swap polarity) so I replaced the relay (under dash near radio amp and remote reciever) NOTHING CHANGED! Please HELP! Any info will be greatly apreaciated, where can I find a wiring diagram to help find this needle in a haystack? Thanks for reading this long winded question(just wanted to give as much info as possible).
Thanks again,Tim 
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#2
07-07-2004, 05:48 AM
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Sound like you may have a bad lock solenoid.
If you have 12v at both lock and unlock at the connector, then that only leaves the lock solenoid itself. Try changing that, or find a known good one and plug it in to the connector and see if it "fires" both ways. Hope this helps.
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#3
07-07-2004, 09:16 PM
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GMCTech,
Thanks for your reply, but that isn't the problem. I think that I have a relay problem since the solenoid is bidirectional (2-wire solenoid swaps polarity to change direction of accuater). I have however been WRONG before so I used your suggestion and tested the solenoid by grounding one of the leads. Unlock works, I then grounded the other lead and lock works. My test lead got hotter than hell!! This also makes me think that the relay (wherever that might be) has a contact that is not operating properly, as I said before I have already changed the one relay I could find. Thanks for your input. More info and/or schematic would be greatly appreciated. 
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