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 1024 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESCRUISE CONTROL INOPERATIVE/MALFUNCTIONINGCIRCUIT/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 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector C3 at the BCM.
- Ignition ON, verify that a test lamp does not illuminate between the cruise control cancel signal circuit terminal 6 and ground.
- If the test lamp illuminates, test the cruise control cancel signal circuit for a short to voltage. If the circuit tests normal, test or replace the cruise control switch assembly.
- Ignition ON, cruise control switch ON. While depressing the CANCEL switch, measure for 10 volts or greater between the cruise control cancel signal circuit terminal 6 and ground.
- If less than 10 volts, test the cruise control cancel signal circuit and the cruise control supply voltage circuit for an open/high resistance, or a short to ground. If the circuits test normal, test or replace the cruise control switch assembly.
- Ignition OFF, connect the harness connector C3 at the BCM. Disconnect the harness connector at the cruise control switch assembly.
- Ignition ON, verify that a test lamp illuminates between B+ and the cruise control cancel signal circuit terminal 3.
- If the test lamp does not illuminate, test the cruise control cancel signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
- Ignition OFF, test for an open/high resistance, a short to ground, or a short to voltage in the cruise control switch signal circuit.
- If the circuit tests normal, test the component. If the circuits and the component tests are normal, replace the ECM.
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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.