Question about 2002 Saturn L-Series
The passenger window will not go down but it will go up, when i check for power i find that i have both power on both wires going to the motor when i push the switch for up and down. when i pulled the motor off the window can be pushed down easily. and the motor will only turn in one direction when i push the switch to go up but will not work when i push it to go down even when it shows power is going to that terminal. passenger side window will go up fine but will not go down. I replaced the motor but still have the same problem.I checked and have power going to the motor in both the up and down positions.I sususpect I'm not getting enough current in the down position.I'm going to replace the relay,if that works I'll let you know.
If you have only two wires going to the motor, I bet that you have power to only one of the two terminals when you put the switch to the down position. The reason is that the other terminal is then connected to ground. This situation reverese when you want the window to go up. If you have power in both wires, you are missing a ground. The relay is a good place to go next.
Posted on Feb 09, 2009
Tips for a great answer:
Feb 09, 2016 | Toyota Cars & Trucks
Nov 04, 2015 | Cars & Trucks
Jun 14, 2015 | GMC Cars & Trucks
Passenger Door Module (PDM)
Body Control Module (BCM)
RR power window switch
Window up and window down relays in each of the rear passenger window switches
Window lockout switch
Reversible power window motors in each of the doors (circuit breaker protected)
LT DOOR CB 25A (System power for left windows)
RT DOOR CB 25A (System power for right windows)
The DDM contains four power window switches which are integral components. Closing any of the normally open, rocker type switches provides the DDM with a request for power window operation. The switches for the two front windows have three positions UP, Down and Express Down, while the switches for the rear windows have only two positions, UP and Down. Each of these switches and their positions is a direct input into the DDM. Upon receiving a request for power window operation, the DDM, transmits a Class 2 message indicating the switch and it's changed position.
The PDM contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDM with a request for the front passenger power window operation. The switch for the front passenger window has two positions Up and Down. Each of these switch positions is a direct input to the PDM.
The two rear passenger doors have there own switches. Each of the switches contain a power window up and down relay. A switch activation alone can control the up and down functions of the rear windows. However the BCM, upon receiving a Class 2 message from the DDM, can control the set of relays which will activate the rear window motors.
You need a scan tool to diagnose these systems
Power Window Inoperative - Driver Door
Did you perform the Door Systems Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Door Systems
Operate the driver power window in the UP and DOWN directions.
Does the driver power window operate properly?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3
Mar 24, 2015 | Cars & Trucks
Jan 16, 2014 | Toyota Cars & Trucks
Nov 20, 2013 | 2002 Hyundai Accent
Feb 27, 2010 | 1999 Dodge Ram
Jan 26, 2010 | 1995 Honda Accord
Jul 30, 2009 | Ford Explorer Cars & Trucks
244 people viewed this question
Usually answered in minutes!