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 MANUALSPONTIAC1998FIREBIRD V8-5.7L VIN GREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULESERVICE AND REPAIRBODY CONTROL MODULE (BCM) REPLACEMENT
1998 Pontiac Firebird V8-5.7L VIN G
Body Control Module (BCM) Replacement
1998 Pontiac Firebird V8-5.7L VIN GSECTION Body Control Module (BCM) Replacement
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Remove the I/P insulator.
3. Unsnap the BCM (3) from the HVAC duct bracket (1).
4. Disconnect the BCM electrical connectors (2).
INSTALLATION PROCEDURE
1. Connect the BCM electrical connectors (2).
2. Snap the BCM (3) to the HVAC duct bracket (1).
3. Install the I/P insulator.
4. Connect the negative battery cable.
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Remove the I/P insulator.
3. Unsnap the BCM (3) from the HVAC duct bracket (1).
4. Disconnect the BCM electrical connectors (2).
INSTALLATION PROCEDURE
1. Connect the BCM electrical connectors (2).
2. Snap the BCM (3) to the HVAC duct bracket (1).
3. Install the I/P insulator.
4. Connect the negative battery cable.
RENDER: 1.0x
NO RELATED
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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.