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.
Relay Block - I/P C4
2008 Pontiac Grand Prix BaseSECTION Relay Block - I/P C4
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Relay Block - I/P C4 Connector Parts Information
Connector Part Information
|
Relay Block - I/P C4 Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| A | BN/WH | 230 | Instrument Panel Lamps Dimming Control |
| BN/WH | 230 | Instrument Panel Lamps Dimming Control (CF5) | |
| B | PK | 1691 | Automatic Day/Night Mirror Low Reference |
| C | GY | 1690 | Automatic Day/Night Mirror Signal |
| D | D-GN | 734 | Inside Air Temperature Sensor Signal |
| E | BN | 718 | Low Reference |
| F | WH/BK | 5515 | Inside Air Temperature Sensor Assembly Control |
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.