Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2004RAINIER AWD V8-5.3L VIN PREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULETESTING AND INSPECTION
2004 Buick Rainier AWD V8-5.3L VIN P
Body Control Module: Testing and Inspection
2004 Buick Rainier AWD V8-5.3L VIN PSECTION Testing and Inspection
BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION
INTRODUCTION
The procedures below are designed to set-up the body control module (BCM) correctly during BCM related service. Before you start, read these procedures carefully and completely.
IMPORTANT: The following procedures must be followed:
1. Programming the BCM
2. Programming Theft Deterrent System Components
3. Relearn Restraints ID
PROGRAMMING THE BCM
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to a default setting. Inform the customer that the personalization must be set again.
Refer to Service Programming System (SPS) in Programming.
PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS
Perform the Programming Theft Deterrent System Components in Theft Deterrent after successfully finishing the Setup New BCM procedure. If the Programming Theft Deterrent System Components in the Theft Deterrent procedure is not performed after a BCM replacement, one of the following conditions will occur:
- The vehicle will not be protected against theft by the PASSLOCK system.
- The engine will not crank nor start.
RELEARN RESTRAINTS ID
Perform the special function for BCM "Setup SDM Serial Number in BCM" with the scan tool.
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.
INTRODUCTION
The procedures below are designed to set-up the body control module (BCM) correctly during BCM related service. Before you start, read these procedures carefully and completely.
IMPORTANT: The following procedures must be followed:
1. Programming the BCM
2. Programming Theft Deterrent System Components
3. Relearn Restraints ID
PROGRAMMING THE BCM
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to a default setting. Inform the customer that the personalization must be set again.
Refer to Service Programming System (SPS) in Programming.
PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS
Perform the Programming Theft Deterrent System Components in Theft Deterrent after successfully finishing the Setup New BCM procedure. If the Programming Theft Deterrent System Components in the Theft Deterrent procedure is not performed after a BCM replacement, one of the following conditions will occur:
- The vehicle will not be protected against theft by the PASSLOCK system.
- The engine will not crank nor start.
RELEARN RESTRAINTS ID
Perform the special function for BCM "Setup SDM Serial Number in BCM" with the scan tool.
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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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.