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Discussion Starter · #1 ·
2004 Alero BCM will not allow the programming of the keyless entry transmitter. Transmitter is ok, works with the original BCM that had a key off drain problem. Anyone have any ideas?
 

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Service Information
2004 Oldsmobile Alero | Alero, Grand Am (VIN N) Service Manual | Document ID: 1333833
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Body Control Module (BCM) Programming/RPO Configuration
The body control module (BCM) must be set up with the proper regular production option (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.

• All accessories are turned OFF.

• The data link connector (DLC) is accessible.

• All modules and devices are connected.

To setup a new BCM, access the SPECIAL FUNCTIONS menu on the scan tool. Select NEW BCM SETUP and follow the instructions on the scan tool.
If the BCM fails to accept the setup options, perform the following steps:
• Inspect all BCM connections.

• Verify that the scan tool has the latest software version.

Passlock Learn Procedure -- Domestic Vehicles Only
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 Passlock sensor

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

• The powertrain control module (PCM)

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

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

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Discussion Starter · #3 ·
Hey, we have this procedure and all the options are programmed (no ABS, no foglights, etc). Everything works and goes thru fine until you have to hold the buttons on the transmitter and then it stops and says programming failed. Have tried a different transmitter and reciever module with no difference.
 

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Discussion Starter · #5 ·
Tried a second new BCM, same result.
If our scanner does not have the very latest update would it cause such problems? It does 98% of the programming for the BCM and the car is a 2004. I'm about out of ideas!?
 

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The transmitters might not be programed through the BCM.First off how are you programming a new BCM?I am assuming you have a Tech2 right?If so make sure that the options are set up correctly when you set up the new BCM.You might need to program the transmitters through the RFA screen.Remote Function Actuation.
 
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