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 MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1039 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0073CIRCUIT/SYSTEM TESTING
2006 Pontiac G6 GTP, 2D Coupe, Standard
Circuit/System Testing
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The seat belt buckle switch is not serviced separately. The seat belt buckle with the seat belt buckle switch must be serviced as a complete unit. When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
- SDM
- Seat belt buckle switch wiring harness connector
- Seat belt buckle switch
- SDM wiring harness connector
- Ignition OFF, disconnect the harness connector of the seat belt switch.
- Test for less than 1.0 ohm between low reference terminal A and ground.
- If greater than specified, test the low reference circuit for open/high resistance. If the circuit tests normal, replace the SDM.
- Ignition ON. Test for 1.0-1.6 volts between the signal circuit terminal B and ground.
- If less that the specified range, test the signal circuit for open/high resistance or a short to ground. If the circuit tests normal, replace the SDM.
- If greater that the specified range, test the signal circuit for a short to voltage.
- If the circuits test normal, replace the seat belt buckle.
RENDER: 1.0x
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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.