1995 Buick LeSabre Logo
Posted on Apr 16, 2009
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Fuses or switches or motors?

1995 Buick LeSabre Limited. All Power Door locks, both rear windows and trunk release don't work. Front window work fine. I have checked the fuses under the driver dash area and the maxifuses in the engine compartment. They all measure fine. Any suggestions

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  • Posted on Apr 17, 2009
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The wirring that goes to the door may have breaks in it, if so they will need to be repaired. would start to look at the drivers door.

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2answers

1997 Buick Park Ave, passenger side and rear windows stopped working.

You say the driver window works? wouldn't be a main fuse or fusible link then -driver door locks and window wouldn't work either. Each door has a module inside (computer) . The driver door has a circuit breaker power feed an a fuse DDM fuse 10amp located in rear junction block circuit breaker is located in under hood maxi fuse block. The circuit breaker also feeds battery voltage to the other door modules too. PDM - passenger door module fuse 10amp located in the instrument panel fuse box and the RDM - rear door module RDM fuse 10amp located in the rear fuse box - under the back seat.

Each power window is connected to a permanent magnet motor. The motor raises or lowers the glass when the door module applies voltage to the motor. The direction the motor turns depends on the polarity of the supply voltage provided by the associated door module. The 2 front doors have their own separate modules. The rear seat contains a single module, which controls both of the rear power windows.
A serial digital communications link, called the simple bus interface, is used for communications between door modules and the driver's door power window switches. The use of serial digital communications allows the use of a single wire to convey switching information between the power door lock switch and the driver's door module (DDM). The serial communication is also used in order to transmit switching information from the DDM to the other 2 door modules.
The door modules apply battery voltage of the correct polarity to the respective window motor when any local, or power door lock switch, UP switch is operated, driving the window up. Battery voltage is applied to the respective window motor in the opposite polarity when any local, or power window switch, DOWN switch is operated, driving the window down.

Driver Door Module (DDM)
The driver's door module (DDM) directly controls the driver's door window motor and the express down window feature. The DDM sends window UP/DOWN messages received from the power door lock switch to the passenger door module (PDM) and to the rear door module (RDM) over the simple bus interface (SBI) line. The DDM also contains a class 2 data link which communicates with the other vehicle system modules. The left front power door locks and the outside power mirror are also controlled through the DDM.
Passenger Door Module (PDM)
The passenger door module (PDM) controls the passenger's door window motor. The PDM controls the passenger's door window directly from the right front power window switch or from instructions over the simple bus interface (SBI). The right front power door locks and the outside power mirror are also controlled through this module.
Rear Door Module (RDM)
The rear door module (RDM) controls both of the rear door window motors. The RDM controls the rear windows directly from the rear door window switches or from instructions over the simple bus interface (SBI).
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1answer

2005 Buick Lesabre driver window inoperative

Power Windows Description and Operation
Power Windows System Components
The following components are used to control the power windows:
• Driver Door Module (DDM)
• Passenger Front Door Module (PDM)
• LH Rear Door Module (LRDM)
• RH Rear Door Module (RRDM)
• Driver Door Switch Assembly (DDSA)
• RH Front Power Window Switch
• LH Rear Power Window Switch
• RH Rear Power Window Switch
• LH Front Power Window Motor
• RH Front Power Window Motor
• LH Rear Power Window Motor
• RH Rear Power Window Motor
• Class 2 serial data circuit
• Power door serial data circuit
• PWR WDO 30 Amp Circuit Breaker
• DRVMDL Fuse (10 amp)
Driver Door Switch Assembly and Driver Door Module logic, Driver Door Module internal driver operation
• PASS MDL Fuse (10 amp)
Front Passenger Door Module logic and internal driver operation
• RRDR MDL Fuse (10 amp)
Left Rear Door Module and Right Rear Door Module logic and internal driver operation
Power Windows Operation
The vehicle is equipped with power windows controlled by the door modules. Each passenger door window can be operated, either from a switch built into the driver door switch assembly (DDSA), or from a switch mounted locally to its associated door. The driver door window can be operated only from the driver door window switch built into the DDSA.
When a window is operated from the DDSA, the DDSA interprets the window switch signal as a specific window switch request and sends the information to the driver door module (DDM) via the power door serial data circuit. The DDM examines the request and checks to see if it has received any class 2 serial data messages from any of the other vehicle modules (i.e. ignition switch position) prohibiting the movement of the window. If the window being operated is the driver door window, and if no prohibitive class 2 messages have been received, the DDM then applies voltage and ground to the driver door window motor to move the window glass as requested. If the window being operated is a passenger door window, and no prohibitive class 2 messages have been received, the DDM sends the request, via the power door serial data circuit, to the appropriate passenger door module. The passenger door module then applies voltage and ground to the passenger door window motor to move the window glass as requested.
When a passenger door window is operated from the power window switch mounted locally to its associated door, the passenger door module first checks to see if the DDM has received any prohibitive class 2 serial data messages. If there are no prohibitive messages, the passenger door module powers the associated passenger door window motor.
Both front door windows have the express down feature. This allows the front door windows to be fully opened by momentarily pulling the appropriate window switch lever to the second detente and then releasing.

Did you hook up a scan tool an check for DTC'S in the driver door module ?

DTC B3142, B3147, B3152, or B3157

The switch that failed and generated this diagnostic trouble code (DTC) is wired to either the driver door switch assembly (DDSA) or the passenger door module (PDM). The DDSA or the PDM includes the switch state in the message it sends to the driver door module (DDM) via the power door serial data circuit. The DDM sends the switch message to the rear integration module (RIM), which is the master of all lock operations, as a class 2 message. The RIM checks all conditions and if all conditions are correct, sends its OK to the DDM. When the OK message is received, the DDM sends the required signal to all other door modules via the power door serial data message system.
0helpful
1answer

Where is the body control module located in 2005 Lincoln las.

There is no BODY CONTROL module,but there is a Front Electronic module FEM, and a rear electronic module,REM (not the rock group,LOL!).
The FEM is located behind the driver's kick panel and the FEM is located on the right side down in the trunk.
The REM controls: Rear windows, , all rear lights, trunk opening, fuel door release, rear window defrost grid, trunk ajar switch, front passenger door lock, , front passenger door lock switch,rear door locks, trunk light, fuel pump, fuel level senders, antenna booster.

Hope this helps? don-ohio (:^)
0helpful
1answer

Loss of power to control switches to power windows/locks/mirror/trunk release

Have the problem system checked for proper ground. It may be at the fuse box if it got wet. Electricity and water mean corrosion when there are two metals present - usually copper and iron. When electrical boxes or connections get 'warm' it means that there is added resistance in the circuit causing the heat. (like a light bulb without the light)
0helpful
1answer

Buick 2002 LaSabre Custom all windows do not go up and down, door lock/unlock switch drivers side does not work(passenger & rear doors lock/unlock door switches work, trunk release button does n

coulb be the control switch on your panel you can take the door panel off and check for loose connections and try to test for continuity. if you dont know how take it to a shop and have them diagnose the electrical. im quite sure it the switch that burnt out
0helpful
2answers

Windows, side mirrors and door locks suddenly stopped working on 2002 Buick Lesabre Limited

The first thing to do would be to hook up a factory or professional type scan tool an check for DTC'S - diagnostic trouble code's . This vehicle has very complex electronic's. Serial data communication network,class2 data bus . There are electronic modules inside the door's that control the lock's ,power window's , power mirror's . Your best bet ,take it to a qualified repair shop . Not a fuse problem , driver an passenger door module each have thier own power supply. Two circuit breakers ,PWR/WDO circuit breaker 30 amp. You could check DRVMDL 10amp fuse ,located in the rear fuse box , PASSMDL 10amp fuse rear fuse box , RRDR/MDL 10 amp fuse rear fuse box . Rear fuse box is under the back seat . None of the window's , lock's etc.. work from any door switch ?
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