2001 Buick Lesabre passenger door

[JimmyDean71]

I have a 2001 lesabre custom and I have a problem with front passenger door. The window doesn't work, the power lock doesn't work, and the power mirror doesn't work, all others work. Only front passenger doesn't. I've checked fuses and wires voltages but can't seem to figure out problem. Thinking maybe it's passenger door module. Does anyone know anything about this? Or can anyone help me with this problem please?

 

[2007LucerneCXL]

Here's a similar problem on a PA that may help in additional information.

Driver door module ? 2001 PA

2001 PA Ultra 111,000 miles. California car. Driver door: No lock control. No window control. No mirror control. Removed door panel. Getting steady battery voltage @ pin # 11 on 20 pin connector(C1) and pin A on 4 pin connector(C2) @Door module. Im assuming this proves that I need to...

buickforums.com

 

[imidazol97]

Did you check for both battery voltage inputs at the module? Both are orange
and one is C1 11 which I would take to mean connector 1 line 11.
The other is C3 A, which I would take as connector 3 input A.

The fuse and breaker are under the rear seat PASS MDL fuse 25 10 amp
and PWR WDO circuit breaker 57.

Do the door locks on that door operate from the driver side?

There is a communication wire from the driver's door module that goes under the driver seat and is partially inside a plastic housing but apparently can be found at the rear of the area under the seat where there is a connector binding the 4 wires from the 4 doors together. They are all tan with white stripe. Some have had trouble with corrosion at that clip due to moisture? Any water issues on the rear floor or front?

I'm not an expert, but I would think if the serial communication between teh doors is lost there, the switches on the passenger door would still operate some things on that door.

I could find passenger door modules for H-bodies (leSabre, Bonneville) on Ebay but couldn't on rockauto.com. Not too expensive

 

[JimmyDean71]

Did you check for both battery voltage inputs at the module? Both are orange
and one is C1 11 which I would take to mean connector 1 line 11.
The other is C3 A, which I would take as connector 3 input A.

The fuse and breaker are under the rear seat PASS MDL fuse 25 10 amp
and PWR WDO circuit breaker 57.

Do the door locks on that door operate from the driver side?

There is a communication wire from the driver's door module that goes under the driver seat and is partially inside a plastic housing but apparently can be found at the rear of the area under the seat where there is a connector binding the 4 wires from the 4 doors together. They are all tan with white stripe. Some have had trouble with corrosion at that clip due to moisture? Any water issues on the rear floor or front?

I'm not an expert, but I would think if the serial communication between teh doors is lost there, the switches on the passenger door would still operate some things on that door.

I could find passenger door modules for H-bodies (leSabre, Bonneville) on Ebay but couldn't on rockauto.com. Not too expensive

I did not check voltage at module I only checked at switch. But I was wrong, the rear passenger window also does not work. The rear door lock works but window doesn't.

 

[JimmyDean71]

I did not check voltage at module I only checked at switch. But I was wrong, the rear passenger window also does not work. The rear door lock works but window doesn't.

Also lock doesn't work from either side, and I did not notice any water issues but I will have to check that connection under seat. Thank you

 

[2007LucerneCXL]

You may want to check the drivers master control as having multiple problems on other doors it's at least a suspect.

 

[imidazol97]

To diagnose the DD console test to be sure the RR window won't operate from the DD buttons Nor the RR window button on the door. Make sure the RR door lock operates from the DD console. Just diagnosing. Hopefully the tan wires hidden under the driver seat and carpet in the middle with the corroding connector isn't the problem for you. People with that problem usually have a wet carpet problem as well at some time.

Without a scanner to read the communication abilities between the driver door module and the passenger side two doors, I'd start diagnosing the the power windows.
They both use the power window relay #57 in rear fuse block. The LEFT REAR door also uses the relay #57. So if the left door window goes up and down, there's no reason to suspect the relay #57; only a connection problem for it to the passenger side doors.

Do you hear a light click at the passenger door when the window switch is pressed for up or down? That would indicate the switch is commanding the module to go up or down.

No? So take out the switch panel and test for power there with the car key ON.
Also if you see how to take the switch apart, I'd clean the contacts if it doesn't
seem to make good connection: the contacts can fret or corrode lightly.

The White wire is grounded. The black/white stripe is the "down" command to module when connected to white wire by the switch. Connect the two with some kind of jumper on the wires to the module inside the door. No reaction?

Then it's off to the window motor to see if it will work. Remove the motor to where you can connect it to a grounded wire and a fused wire supplying 12 volts from battery.

If you want to see diagrams, I can post after taking pictures of them.

 

[imidazol97]

Which lock doesn't work from either side in your post? What
do you mean by "either side."

Does that mean the rear door locks don't work when commanded from
either of the front doors? And that neither of the rear locks operate
while the front locks do operate?