Question about 1994 Lexus GS 300

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My power seats and power windows aren't working, and apparently there's some wiring that powers both. The wiring is burnt out, and the switches may be as well. My mechanic can't find the parts anywhere for a reasonable price. I have a 94 GS300. Any recommendations?

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The best place I've found is to order them on eBay. Here you can find most parts and aftermarket alternatives for a lot cheaper than from you local dealer or auto parts store.

Posted on Jun 27, 2009

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Posted on Jan 02, 2017

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1 Answer

Power windows, sunroof, nor power seat works anymore. Why is that?


I think you may have burnt out the control module.

Mar 20, 2014 | Cars & Trucks

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Where is the relay switch for power windows in 2006 dodge stratus


There is no relay for the windows, if all windows aren't working, check the fuse (#2). It could also be a faulty windows on/off switch on the drivers side.

Feb 12, 2012 | 2006 Dodge Stratus

1 Answer

I have a 2008 Chevrolet Silverado 1500, extended cab, automatic truck.......PROBLEM, the drivers side has a power seat, it will not move in any direction and the passenger side front and rear power windows...


How to diagnose this problem ? Viewing wiring diagrams to see what all is invovled in these electrical circuit's , check power supply's an ground connection's using a DMM - digital multimeter !
What type power seat's ? does it have memory ,heated an cooled etc ?
Power Seats System Description and Operation
There are 2 options of power seat systems available in full size trucks. The first is 6 way driver and passenger power seats without memory. The second is an 8-way driver seat plus 4-way lumbar with memory, heat and optional cool function. While the passenger has 8-way power seats with heat and optional cool function. For the driver memory seat operation, refer to Memory Seats Description and Operation. Power seats without memory are completely controlled through the power seat switch. Battery voltage is supplied to the power seat switch through the power seat circuit breaker. While the seat adjuster switches are in an inactive state the switch contacts are closed to the power seat switch ground circuit. When a power seat switch is pressed to an active state the switch contact is closed to the battery voltage supply circuit. Each seat adjuster motor is controlled by the power seat switch through 2 motor control circuits. The seat adjuster motors are bidirectional and the direction of adjuster motor rotation is determined by which of the adjuster motor control circuits is switched to battery voltage while the other remains grounded.

If it has memory seat's there is a control module !
Battery voltage is supplied to the driver seat module through a 25 A circuit breaker. The driver seat module supplies the seat adjuster switch assembly with a battery positive reference voltage. While the seat adjuster switches are in an inactive state the switch contacts are closed to the adjuster switch common circuit.
Both right side windows have a seperate power supply from the left side window's ,has RT DOORS circuit breaker CB1 - 25amp. location left instrument panel fuse block . Circuit breaker's very rarely fail .Do the door lock's work on that side of the vehicle ? The windows won't work with their own switche's ?
The DDS controls the passenger window through a GMLAN message to the PDS. When a power window switch is activated in the up or down positions the PDS supplies power and ground to the window motor control circuits to drive the window motor in the required direction. Prior to activating a power window motor the PDS will supply the control circuit with a low current bias voltage in order to determine that a short to ground condition does not exist, and during window motor operation the PDS continues to monitor the motor current to verify proper window motor operation. (Scan tool support is available for this system)
Check PDM fuse 4 15 amp ,this supply's B+ voltage to the DOORLOCK/WINDOW switch passenger side . Check for broken wires inside the flex boot from the body to the passenger door .

Nov 18, 2017 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

I need to know the power source for the driverside master window control unit. is it afuse or relay? and where is it and its not in the fusebox underdash---driverside


Hello: The power source is a circuit breaker located in the fuse box under the driver side dash. There are 2 circuit breakers (about 1 inch long and 1/4 inch wide. The top one is for the windows, swap the two breakers, If the windows work then you have a bad breaker. If windows don't work the remove the window switch assembly from the door. on the back side of the window switch assembly you will have a heavy pink wire, that is power to the windows. with a test light check to see if you have power. If you don't the it could be a broken wire where the wire comes from the body to the door. If no broken wire then it could be a burnt fusible link that comes off the starter. ALSO BELOW the window circuit breaker is a black connector that supplies power to the windows, the trunk release and the sunroof if equipped. This information straight out of a 1988 CADILLAC service manual. Check that black connector for burnt wires and make sure its plugged in tight. Do any of the windows work from the individual switches in the door.

Aug 29, 2011 | 1988 Cadillac Brougham

1 Answer

I need a wiring diagram of the power seat for a 97 chevy venture van


CHECK POWER SEAT FUSE.IF FUSE OKAY.CHECK FOR POWER AT SEAT SWITCH IF YES.HOT WIRE POWER SEAT MOTOR STILL DONT WORK. POWER SEAT MOTOR FAULTY.NO POWER TO SWITCH AND FUSE GOOD CHECK FOR A OPEN OR BROKE WIRE FROM THE FUSE BOX TO THE POWER SEAT SWITCH.

Oct 17, 2010 | Chevrolet Venture Cars & Trucks

1 Answer

2008 saturn vue power seat stopped working. changed 20 amp breaker but was not the problem.


look under seat and check wiring and connections if good check power to the switches and test power to the motor- repair or replace damaged or burnt out part

Mar 26, 2010 | 2008 Saturn VUE

3 Answers

1995 jaguar driver seat won't move.


You might want to try disconnecting the negative battery cable for 5 minutes and then reconnecting it. This procedure fixed my seat that was not working. It works fine now. I know it sounds too good to be true but it usually works

Jan 23, 2010 | 1995 Jaguar XJ6

1 Answer

I've a 1996 Jeep Grand Cherokee Limited, both of the front power seats have stopped working, I suspect a short. I have a strong smell of burnt wire or varnish in the vehicle. Is there a master controller...


First of all: Ground your car till you fixed this problem! A short can cause a fire and, believe me you can't stop it!
Next: check the complete wiring for the seat first, then remove the seat and check wiring and switch inside. After that, check the motor(s). If there is no problem with the seat and the wiring in and to the seat, remove the dash board (you need to remove it complete! This will take a day, if you don't do this every day). Use a wiring diagram and check the wiring for a short or broken wire. The electrical system is not as simple as it was in the later 80' . Cars with ODB systems uses wires not only for a special system, like power seat. The same wire can be uses to activate other systems so it is not easy to find the electrical cramlin right at the point you think it have to be! Searching for a short can cost you days or, in some cases weeks.

Jan 04, 2010 | 1994 Jeep Grand Cherokee

1 Answer

Power windows won't work on 98 el dorado etc


check to see if you have power to the window motor.. if so then the window motor is bad, if not the switch is bad...good luck keith...

Apr 04, 2009 | 1998 Cadillac Eldorado

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