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.
HVAC Control Module X4 (C69)
2008 Pontiac Grand Prix BaseSECTION HVAC Control Module X4 (C69)
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.
Connector Part Information
|
Terminal Part Information
|
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | - | - | Not Used |
| 2 | 0.35 GY | 596 | 5-Volt Reference |
| 3 | 0.35 OG | 2215 | Auxiliary Mode Door Control |
| 4 | 0.35 GY | 2614 | Auxiliary Air Temperature Door Control |
| 5 | - | - | Not Used |
| 6 | 0.35 GY/BK | 1798 | Ground |
| 7-9 | - | - | Not Used |
| 10 | 0.35 D-GN | 2211 | Auxiliary Blower Motor Speed Control |
| 11-16 | - | - | Not Used |
RENDER: 1.0x
NO RELATED
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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.