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 MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 550 (KEYLESS ENTRY SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B3102: KEYLESS ENTRY DATA LINK CIRCUIT LOWCONDITIONS FOR CLEARING THE DTC
1999 GMC Forward Control 5.7 R, Automatic
Conditions for Clearing the DTC
1999 GMC Forward Control 5.7 R, AutomaticSECTION Conditions for Clearing the DTC
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- A current DTC will clear when the fault is no longer present and the ignition switch is cycled.
- A history DTC will clear after 100 consecutive ignition cycles without a fault present.
- A scan tool may be used to clear history and current DTC(s).
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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.