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.
Circuit/System Testing
2008 Pontiac Grand Prix BaseSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, verify the scan tool Memory Recall Switches parameter is approximately 2.74 volts while pressing the memory 1 switch.
- If the parameter is not the specified value, perform the Memory Switch component test. If the switch tests normal, replace the driver door switch.
- Verify the scan tool Memory Recall Switches parameter is approximately 1.78 volts while pressing the memory 2 switch.
- If the parameter is not the specified value, replace the memory switch.
- Verify the scan tool Memory Recall Switches parameter is approximately 0.96 volts while pressing the EXIT switch.
- If the parameter is not the specified value, replace the memory switch.
- If all circuits test normal, replace the memory seat module.
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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.