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 1046 (LIGHTING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESINTERIOR BACKLIGHTING MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2006 Pontiac G6 GTP, 2D Coupe, Standard
Circuit/System Verification
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Circuit/System Verification
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 ON, observe the driver door switch while commanding the Driver Door Switch Integrated Sw. Backlighting Test ON and OFF with a scan tool. The switch backlighting should turn ON and OFF between commanded states.
- If the backlighting does not turn On and OFF or remains always ON, replace the driver door switch.
- Observe the driver heated and cooled seat switch while commanding the Driver Door Switch Non-Integrated Sw. Backlighting Test ON and OFF with a scan tool. The switch backlighting should turn ON and OFF between commanded states.
- If the backlighting does not turn On and OFF or remains always ON, refer to Front Door Switch Backlighting Circuit Test .
- Observe the passenger door switch while commanding the Passenger Door Switch Integrated Sw. Backlighting Test ON and OFF with a scan tool. The switch backlighting should turn ON and OFF between commanded states.
- If the backlighting does not turn On and OFF or always remains ON, replace the passenger door switch.
- Observe the passenger heated and cooled seat switch while commanding the Passenger Door Switch Non-Integrated Sw. Backlighting Test ON and OFF with a scan tool. The switch backlighting should turn ON and OFF between commanded states.
- If the backlighting does not turn On and OFF or remains always ON, refer to Front Door Switch Backlighting Circuit Test .
- Observe the scan tool BCM Dimming Control Signal parameter while operating the dimmer switch from high to low. The reading should change from a high percent to a low percent as the switch is rotated.
- If the reading does not change, refer to Dimmer Switch Circuit Test .
- If the scan tool dimmer control operates normal, refer to Interior Backlighting Circuit Test .
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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.