Question about 2002 Chevrolet TrailBlazer

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Driver side window controller replaced and still dosen't operate. was informed that I need to re program the body computer. How do I go about doing this?

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  • cwatkins707 Sep 04, 2008


    • Drivers Side Door Control Panel, click like trying to lock while I am driving, Then the windows and lock will stop working, After a bit will work again, Always works when you first get in the car, but after driving it about 10 min they stop working again, What is causing this, and how do I fix it?

  • Anonymous Oct 19, 2008

    Yes, I have the same problem. Don't want to spend the $100 diognostic fee because it is so intermittant, that it suddenly works when I drive to the dealership.



    Could it be a partialy burned fuse?

  • Anonymous Jan 10, 2009

    I too have the same issue with my 2002 Trail Blazer only the drivers side control panel. Mine is fine all year until the outside temperature goes down lower then 30 degrees.Then in the morning the doors lock and unlock repeatedly for 10 minutes and the windows won't go down until the vehicle warms up then they work fine until the temp drops again. When spring comes there is no sign of the problem until fall.

  • Anonymous Jan 13, 2009

    2002 Chev Trailblazer, driver side controls no power, is this fused under passenger seat or under hood fuse box?

  • yadayada
    yadayada May 11, 2010

    Informed by who? if the switch was the issue you would need to do nothing but replace it, how do you know the window motor isn't defective?

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1 Answer

If infact the dr. door switch assembly is the problem, then the switch will need to be programmed- not the body controller. The switch assembly is also refered to as the Driver Door Module (DDM). Anew or used module will not function properly until it is programmed to your vehicle. This is a dealer service that will cost approx. 1/2 hour labor.
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Posted on Nov 04, 2008

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2000 le sabre, power windows, door locks, side mirrors, not working all of a sudden


All - driver - passenger - front an back ? Look for broken wires inside the rubber boot from the body to the door ,driver side !

Power Windows Operation
Power Windows
The vehicle is equipped with power windows controlled by the door modules. The DDM receives a window switch request, over the SBI serial data, from either the passenger door module wired to the window switch pressed or from the driver door switch assembly. The DDM checks the Class 2 serial data to see if the status information is correct (i.e. ignition switch position) to permit window operation.
If the status information to permit window operation is correct, the DDM sends the command to the door module controlling the window to move the window as requested.
Windows Power and Ground
The windows are powered by discreet power and ground circuits. These circuits are in the same dedicated connector as the window motor drive circuits.

PWR/WDO 30 amp circuit breaker located in the rear fuse box ,DRVMDL fuse 10amp located in the same rear fuse box . This power the driver door module (computer )

The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door. The driver door module (DDM) is the master control for the door lock system but the rear integration module (RIM) contains the program that determines when the lock functions are permitted.
The exterior key cylinders are wired to either the DDM or the passenger door module (PDM), depending on the location of the key cylinder. The interior lock switches are wired to the driver door switch assembly (DDSA) and the PDM. The DDSA and the PDM send the lock switch requests to the DDM over the simple bus interface (SBI) serial data circuit. The DDM then sends the lock requests to the RIM over the Class 2 serial data circuits.
The door lock operation modes are controlled by the rear integration module (RIM). The RIM examines the requested function from the DDM, or the remote function actuator (RFA), as well as the transmission shift selector position and the ignition switch position information available over the Class 2 serial data circuits. The RIM determines if a locking function is permitted, and commands the DDM to perform the function permitted. The DDM then sends commands to the rest of the door modules via the SBI to implement the selected locking function.
All programmable modes of lock system operation are stored in the RIM. The RIM checks the lock function program selected against the lock requests, the transmission selection and ignition key switch condition to determine if the requested function is permitted. If the requested function is permitted, the RIM then commands the DDM to perform the lock function over the Class 2 serial data circuits. The DDM commands the individual door modules to perform the lock function over the SBI serial data circuit.


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I hsve a 2008 saturn sky base 2.4L. The dealer says I need a new body control module. My question does the new BCM require reprogramming? If it doesn't then I will replace myself. Thanks


Body Control Module (BCM) Replacement and Reprogramming
If the BCM is replaced or requires reprogramming, the following procedures must be performed in the specified order:
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BPP Sensor Calibration--Refer to Brake Pedal Position Sensor Calibration
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How would you replace a BCM, Body Control Module


Preliminary Procedure Remove the knee bolster. Refer to Knee Bolster Replacement
1
Body Control Module
Tip
  1. Remove the BCM cover.
  2. Disconnect the electrical connectors.
  3. Press on the tabs to release the body control module.
  4. If a replacement module is installed, program the module. Refer to Control Module References .
  5. A new body control module (BCM) must be programmed with the latest operating software and vehicle calibrations. Ensure that the following conditions exist in order to prepare for BCM programming:
  6. The battery is fully charged.


    ?€¢
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    ?€¢
    The data link connector (DLC) is accessible.


    ?€¢
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1 Answer

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it depends on what model and what options your Journey is equipped with. if it has a dual zone control climate control, it sounds like the blending actuators are not aligning properly or the blend doors are not adjusting to cooperate with the main climate control system. the temp. of the vehicle is controlled by Blend doors in the h/vac system that is thereby controlled by the body control module of the vehicle. the module is a computer that controls all functions within the body of the vehicle. the module should have problem codes that should isolate the area that needs attention.
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usually its just a blend door actuator that needs replacing. to rule out heater core issues, if there is no excessive condensation on the windows and coolant on the carpet, then most like it's a module or blend door issue. if it's a single mode climate control, the same is true but puzzling b/c in that case, both passenger and driver h/vac system is designed to push out a consistent temp for both side without the option of variation on either side. again most likely a blend door issue.

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Then look at the backside of the drivers' window control switch and see if anything is melted. It could have melted the lock button too!

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Hi!

To resolve the issue you are facing with you need to check the following parts—

1. Battery voltage at window switch. If no battery voltage at that switch, check for broken wire between door and body it means the motor of the window has gone bad.

2. If window can be operated by driver switch or individual switch it means window switch has gone bad.

3. If the pin connectors are broken then it means the switch connector of the window has become unserviceable and need replacement. If none of the non-driver switch is working then it is a bad lockout switch.

Please check all the above possibilities and repair/replace whatever is gone bad.

Thanks for using FixYa

Please revert for further assistance.

Thanks
Rylee

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