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 MANUALSPONTIAC1997GRAND PRIX GTP, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 7 (BODY CONTROL MODULE)DIAGNOSIS & REPAIRDTC B2802, RFA LINK CIRCUIT (SHORT TO GROUND)TESTING
1997 Pontiac Grand Prix GTP, 4D Sedan
DTC B2802, RFA Link Circuit (Short To Ground): Testing
1997 Pontiac Grand Prix GTP, 4D SedanSECTION Testing
WARNING: This page is about a different car, the 1997 Buick Regal and 1997 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- If BCM diagnostic system check was performed, go to next step. If BCM diagnostic system check was not performed, go to BCM DIAGNOSTIC SYSTEM CHECK .
- Turn ignition off. Disconnect BCM 32-pin connector C1. Turn ignition on. Using DVOM, check voltage between battery voltage and BCM harness connector C1 terminal C15 (Black wire). If reading is 9-14 volts, go to next step. If reading is not 9-14 volts, go to step 4).
- Turn ignition off. Reinstall all components and connectors. Turn ignition on. Clear DTCs. Check for DTCs. If DTC B2802 sets again, go to step 8). If DTC B2802 does not set again, system is operating properly.
- Disconnect RCDLR, located above right side of instrument cluster. Using DVOM, check resistance between ground and BCM harness connector C1 terminal C15 (Black wire). If resistance is infinite, go to step 6). If resistance is not infinite, go to next step.
- Repair short to ground in Black wire between BCM connector C1 and RCDLR. Go to step 7).
- Replace RCDLR. Go to step 7).
- Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Perform BCM DIAGNOSTIC SYSTEM CHECK .
- Turn ignition off. Replace BCM. See REMOVAL & INSTALLATION . Reprogram BCM. See BCM PROGRAMMING. Go to step 7).
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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.