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 759 (SEAT BELT SYSTEM)COMPONENT LOCATORSEAT BELT CONNECTOR END VIEWS

1999 GMC Forward Control 5.7 R, Automatic

Seat Belt Connector End Views

1999 GMC Forward Control 5.7 R, AutomaticSECTION Seat Belt Connector End Views

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Seat Belt Switch Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047663 2 Way M Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK/WHT	238	Seat Belt Switch Signal - Driver
B	BLK	150	Ground

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.