BCM replacement

DUSTIN MILLS

MEMBER
2003 SATURN VUE
330,000 MILES

I have bought the car listed above v6. It has a bad BCM 1. GM tech said if I buy my a used one it would have to be reprogrammed. Then another GM tech said it's not possible to reprogram. Then another told me as long as the part number matched I can use it or as long as it has the same options.

2 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon.

You need a new BCM and yes, it must be programmed to your car. The other two guys are incorrect.

Roy

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Thursday, October 10th, 2019 AT 1:29 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

I attached the procedure for you and the programming procedure for you to follow.

Let me know if you have any other questions.

Roy

BODY CONTROL MODULE REPLACEMENT

REMOVAL PROCEDURE

IMPORTANT: Service programming is required when replacing the BCM. Refer to "Saturn Service Stall" user's guide.

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1. Remove the radio bezel.
2. Disconnect the body control module (BCM) electrical harnesses.
3. Remove the BCM from the I/P retainer:
1. Pry the BCM tabs from the locking tabs on the underside of the restraint.
2. Slide the BCM out of the retainer.

INSTALLATION PROCEDURE

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1. Install the BCM.
2. Install the radio bezel.
3. Slide the BCM tabs into the slots in the I/P retainer until the tabs lock into place.
4. Connect the electrical connectors.
5. Program a new or a remanufactured BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration. See: Vehicle > Programming and Relearning

Programming procedure.

BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION

1. The body control module (BCM) must be programmed with the proper RPO configurations. The BCM stores the information regarding the vehicle options and if the BCM is not properly configured with the correct RPO codes, the BCM will not control all of the features properly. Ensure that the following conditions exist in order to prepare for BCM programming:
The battery is fully charged.
The ignition switch is in the ON position.
The data link connector (DLC) is accessible.
All disconnected modules and devices are reconnected before programming.
2. To setup a new BCM, use the Tech 2 in conjunction with the Saturn Service Stall System. Refer to Service Programming System (SPS) in Programming.
3. If the BCM fails to accept the program, perform the following steps:
Inspect all BCM connections.
Verify that the scan tool has the latest software version.

Passlock Learn Procedures

IMPORTANT: If any module or device listed is replaced, programming of the module must be done prior to performing the Passlock Learn procedure.

Perform the Learn Procedure if any of the following components have been replaced:
The body control module (BCM)
The ignition switch
The engine control module (ECM)

Refer to Programming Theft Deterrent System Components in Theft Deterrent for the proper procedure.

IMPORTANT: After programming, perform the following to avoid future misdiagnosis:

1. Turn the ignition OFF for 10 seconds.
2. Connect the scan tool to the data link connector.
3. Turn the ignition ON with the engine OFF.
4. Use the scan tool in order to retrieve history DTCs from all modules.
5. Clear all history DTCs.

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