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1988 Chev 1500 Pick-up Failing - Windows & Glass
Question: passenger side power window will not go up or down. Power door locks will not work on both sides. Checked fuses, repaced switches. no luck. using a 12v. charger attached to the window motor; it will work. the charger works the door locks on both doors. Is there a relay I cannot find?
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Technican: Hello, You have already checked the fuses and replaced the switches. Have you verified that battery voltage is actually present at these switches?
The passenger window switch gets its power through the driver's power window switch. Windows are circuit breaker protected. Since the driver's window works we can believe the circuit breaker to be good. But, if even the driver cannot roll down the right window and power is present at the driver's switch, there is likely a broken wire in the rubber flex boot between the hinges on either door. You would have to slice the boot open and look at the area the wires bend the most frequently for a break. Such a break is easily repaired by splice and solder and I recommend heat shrink to weather tight the repair.
Door locks are fuse protected. Switches are new, fuses are stated to be good, so verify battery voltage is present at the switch. If it is not, repeat the above wire search inside the door flex boot as needed for a broken wire relative to door locks.
There is a door lock relay that could be bad. If there is power at the door lock switches, look for the door lock relay behind the right verticle kick panel under the dash and just forward of the right door. It is important to know that some models put the relay on the driver's side behind the kick panel. You may have to check both sides.
Technican: Hello, Will you please take a moment and give me an update on this question? Thanks!
Merry Christmas,
Owner: , I have the door locks working from both sides. This is a great imporvement for me. The drivers window will not work from either side. I am working on the broken wire theory. There are no relays behind pannels on either side. Will keep cheking wires for now. Thanks for all the help and have a Blessed Christmas and a Greater New Year. Paul
Technican: Since the door locks are working now you could find the relay by tracing the sound it makes when it works if you want to. No need..
Do you have 12VDC at the driver's power window switch? If you unplug the driver side window motor you can check to see if the switch is sending the volts to the motor by checking for switched power at the connector.
Merry Christmas to you and a prosperous New Year!,
Owner: I have the 12v at the driver's power window switch and also at the pass. switch. No lick so far. The new switches were from a e-bay bid and may also be defective. I have ardered new switches and hope this will fix. Paul
Technican: Have you disconnected the connector at the window motor, turned the key ON, tested each wire in the connector for the window motor for power when you actuate the switch? Test each wire while actuating the window switch "UP" and "DOWN." One wire in the connector should show volts when the window switch calls for "UP" and the other wire should show volts when the window switch calls for "DOWN."
Power in each wire sent there by the switch would mean a bad motor. Power in only one wire at the motor connector can be double checked by testing the same color wire leaving the back of the window switch for switched power output. If power leaves the switch but doesn't arrive at the motor connector you likely have a broken wire in the flex boot.
Please try these tests before you replace the switches again.
Owner: BIG THANKS and I will try these steps. Have a great New Years celebration. Paul
Technican: Happy New Year!! Let me know if you need further assistance on this question.
Owner: I think you have about covered all the bases on this one. The only thing left to do is the time comsuming testing of each wire and making sure the voltage is reaching the window motor. Thaks again for all the advice and suggestions. Paul
Technican: , Sir. I hope I've provided the advice that gets you to the problem source.
If you are ready to, please close this question so that I may be paid. Thank you for your business.
Owner: Great job. I do not know how to close the question. Please send info. and I will get you paid asap. Paul
Technican: You should see on your screen "Are you satisfied with the answer? Click "OK" to pay the mechanic." And a red "OK" box should be there.
There should also be a sentence "Reply for more information" and a red "Reply" button if you desire more info.
If you don't see these boxes, log out and log back in without using the link that comes in your email. When you log in the long way you should see what I'm trying to explain.
Thanks!,
Owner: , I have logged on both ways and no red button and no "are you statisfied with your answer." Internet is slow at this time and I will try again later. Paul
p.s. I have voltage to both wires going to the window motor. Polarity reversen as switch is moved. No motor movement. disconnect the wires from the switch and use the battery charger window goes up and down. The voltage from the battery charger and the voltage from the switch are both 12 volts. I guess a new motor must be in order. Paul
Technican: Sounds like a motor failure to me too. If you remove the window regulator and change the motor yourself be very careful. That spring on the regulator is there to assist the motor when raising the window. It is tensioned even when the window regulator is full "up". Clamp the regulator in a vice in such a way that when you remove the motor, the regulator arm can't move from the springs' tension. I have seen some scary injuries from not addressing what the regulator arm will do when you remove the motor. Use a vice. Do not trust vice grips!!
Owner: , All I can get is a blank screen to type on and a send button. I would be glad to close if only I had the red button to use. I will try any suggestions. Thanks for your patience, Paul Here's How To Get Guaranteed Solutions In Minutes
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