Question about 1991 Toyota Celica
Passenger headlight door is up. Driver headlight door is down. Turn on lights, and they switch positions. How do I get them so they are BOTH down when off, and up when on?
The most common cause of this is the headlight motors are wearing out.
Posted on Dec 15, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Front Passenger door lock switch
Body Control Module (BCM)
Relays: Driver Door Unlock--if equipped, Door Unlock, and Door Lock
Door Lock fuse 15A
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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
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