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 1074 (OBJECT DETECTION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B356ACIRCUIT/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.
- Ignition OFF for 120 seconds, disconnect the harness connector at the headlamp switch.
- Ignition ON, verify the scan tool Mode Switch parameter is Inactive.
- If not the specified value, test the signal circuit terminal 9 for a short to ground. If the circuit tests normal, replace the VDAAW module.
- Install 3A fused jumper wire between the signal circuit terminal 9 and ground. Verify the scan tool Mode Switch parameter is Active.
- If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the VDAAW module.
- If all circuits test normal, test or replace the headlamp switch.
IMPORTANT:
Before disconnecting the harness connector at the VDAAW module, ensure that the ignition has been OFF for at least 120 seconds. Failure to do so may result in component damage.
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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.