PASSANGER POWER WINDOW WON'T GO DOWN, BUT WILL GO UP.
2003 Chevrolet Venture • 165,000 miles
The motor turns only in one direction. Multi-meter shows switch works both ways (+12vdc and -12vdc) but when motor is connected, the voltage drops off when motor is activated in the non-functioning direction, doesn't fail in the functioning direction. I know the motor is good. System fail's this way from both driver and passenger switches.
June 17, 2012.
June 17, 2012.
For a passenger window current goes through both the passenger switch and the released part of the driver's switch so either one can have a bad contact. Also look for frayed or broken wires between the door hinges although the symptoms will usually be a little different at each switch. To add to the misery, GM used to build in relays into some of their switches. If you still have the more simple, reliable heavy switch contacts, you can usually clean them with some fine sandpaper.
A lot of newer vehicles need insane computers added to the circuit to make them work. In that case there may be relays under the dash that can be swapped as a test. Sometimes they're built into a sealed box to insure you have to buy an expensive replacement part. The clue there is there will only be three wires on any window switch, the feed and one for up and one for down. The older, more common sense circuits will have six wires for each switch. Each switch has two switches built in and each of those have two positions; pressed and released. Between the passenger switch and the driver's switch, there are four sets of contacts. All four should read continuity to ground when all of them are released. Depending on which switch is pressed, and whether it's up or down, one of those four contacts will have 12 volts applied and the other three will stay at ground.
What you need to do is have someone hold one of the switches in the dead direction, THEN do your voltage measurements. Use the body as ground for the meter, find the wire at the motor that's missing the 12 volts and follow it back through any switches to find where that 12 volts isn't making it through a switch contact or wire.
Jun 17, 2012.
Jun 17, 2012.
2005 Honda Odyssey EXL. Sorry I have a few questions. Q-My drivers window intermittently worked prior, replaced motor and switch, now it does not work at all. What else can I do? Q-Does...
1 answer • 2005 Honda Odyssey • 130,000 miles
I have a 1994 saturn sl1. The driver's window was smashed in and I have been learning through the video's how to take everything off to get to the window. I can't afford the $260 to get...
6 answers • 1994 Saturn SL1 • 155,000 miles
I just recently bought a 1998 Oldsmobile Intrigue when I bought it I was told that 3 of the power windows did not work. The guy said that he thought the rear two motors were bound up. ...
4 answers • 1998 Oldsmobile Intrigue • 165,000 miles