Electric Window Stumper
Thread Starter
Instructor
Joined: Jun 2008
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From: Palm Coast Florida
Electric Window Stumper
I have power to both sides of the plug that goes into the power window motor, however the motors won't work. If I take a lead from the positive side of the battery and touch either terminal on the window motor, the window will go up and down. Any thoughts or suggestions would be greatly appreciated.
Former Vendor
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From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Wow.. You might have a ground issue with the motor. run a separate ground from the motor and try it. If you get the same results, then see what the voltage is on the connector.
Willcox
Willcox
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From: Palm Coast Florida
I ran a ground wire from the battery to the ground wire at the relay, no luck. I have at least 12.3 volts on both sides if the plug at the motor. I'm starting to think that this is one of those mysteries of life that we're not supposed to understand or figure out. 
Race Director
Joined: May 2006
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From: Dayton, Ohio
If you get the motor to run using a jumper from the pos post to the motor connection then I'm guessing you have wiring or relay issues.
A voltmeter will tell you your voltage at the connector but won't tell the amperage available. I think your losing amperage some where in the relay ,wiring or window switch. Try jumpering the relay and then operating the window switch,if that doesn't work then jumper the switch.
You should be able to narrow it down pretty quick.
Burning Brakes
Joined: Jul 2001
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From: Foxfield, Co
Could be bad contacts in the switch, that is what was wrong with mine. It will pass 12 volts with no load but when the window motor is hooked up and you tried the switch the voltage at the motor would drop to 0. Jump out the switch and see if the windows work.
Greg
By the way mine needed both switches.
Greg
By the way mine needed both switches.
Thread Starter
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From: Palm Coast Florida
Okay, the relay has two plugs going into it. One hot with two terminals and one with one terminal which goes out to the switches. I jumped from the top terminal [which is hot] to the single that goes to the switches, and the motor worked. Does that mean that the relay is bad?
Burning Brakes
Joined: Jul 2001
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From: Foxfield, Co
Okay, the relay has two plugs going into it. One hot with two terminals and one with one terminal which goes out to the switches. I jumped from the top terminal [which is hot] to the single that goes to the switches, and the motor worked. Does that mean that the relay is bad?
greg
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Instructor
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From: Palm Coast Florida
Thanks Greg, I'll check the volts at both terminals, check to fuse [which I believe is that big 30 amp on the firewall], and order a new relay just to be safe. Hopefully, case closed! 
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Race Director
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From: Dayton, Ohio
The pink/black will have a 10 amp but the orange/black will have a 30-40 amp breaker.
Make sure the pink/black has voltage as Greg said with the key on AND make sure the relay itself is grounded.
When the relay "pulls in" the orange/black is connected to the red/white.
Does the relay click when the key is turned to on ?
Make sure the pink/black has voltage as Greg said with the key on AND make sure the relay itself is grounded.
When the relay "pulls in" the orange/black is connected to the red/white.
Does the relay click when the key is turned to on ?
Thread Starter
Instructor
Joined: Jun 2008
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From: Palm Coast Florida
The orange/black has 12 volts always, the pink/black has 12 volts with the key on, and the red/black has 12 volts with the key on. The case of the relay has ground continuity.
Last edited by Silver 73; Jan 30, 2010 at 09:18 PM.
