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Cadillac Repair/Front Power windows on 1993 Cadillac STS
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Question
The two front power windows quit working on my 1993 STS. I replaced the master door switch on the drivers door just as a possibility with no success. The passenger window does not work with either switch. Because of them both failing at the same time I'm thinking possibly a relay somewhere? Any suggestions on where to go from here?
Hello,
The first thing you need to do is check and trace the wiring.
As for the wiring, you need to see if you even have power going to the main switch. If you don't, that would also explain why the other switch doesn't work. The one thing I stress because I have repaired hundreds of times is these are notorious for breaking wires inside the rubber boot at the front of the door at the pinch point.
When people are trying to fix these old cars I highly recommend the factory service manual. This way you get diagnostics, wiring schematics and everything you need to do your own repairs. Could cost hundreds if you can even find one. You can do what I do. I can download the manual for a year for $30. How much did you spend on the switch that did not fix the problem?
Go here http://www.alldata.com
http://www.autotheftexpert.com
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| Rating(1-10) | Knowledgeability = 10 | Clarity of Response = 10 | Politeness = 10 |
| Comment | Thanks for the feedback. The car only has 25,000 miles and has hardly been driven in it's 18 years, however it sounds like "the broken wire in the door jam" is the most suspect. I'll hit it with a meter and go from there. I was hoping broken wires in the door jam was ancient history in the modern age. I guess GM just wants to hold on to some of their old heritage. Thanks again. | ||
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Rob Painter
Expertise
Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?
Experience
Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.
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