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.
Junction Block - Wire Entry
2008 Pontiac Grand Prix BaseSECTION Junction Block - Wire Entry
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.
Junction Block- I/P C1 Connector Parts Information
Connector Part Information
|
Junction Block - Wire Entry Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 2A | D-GN | 117 | Right Front Speaker Output (-) |
| D-GN | 117 | Right Front Speaker Output (-) | |
| 2B | L-GN | 200 | Right Front Speaker Output (+) |
| L-GN | 200 | Right Front Speaker Output (+) | |
| 2C-2E | - | - | Not Used |
| 2F | BK | 1050 | Ground |
| 3A-3F | - | - | Not Used |
| 4A | BK | 1050 | Ground |
| 4B | GY/BK | 2337 | Lower Right Air Temperature Sensor Signal |
| 4C | BN | 718 | Low Reference |
| 4D | RD | 542 | Battery Positive Voltage |
| 4E | PU | 1838 | Recirculation Door Position Signal |
| 4F | PU/WH | 760 | Blower Motor Speed Control |
| 4G-4H | - | - | Not Used |
| 4J | L-BU/BK | 1688 | 5-Volt Reference |
| 4K | - | - | Not Used |
| 4L | YE | 1791 | Low Reference |
| 4M | - | - | Not Used |
| 5A | - | - | Not Used |
| 5B | L-GN | 2275 | Mode Door Position Signal |
| 5C | TN | 2273 | Mode Door Control |
| 5D | D-BU | 1199 | Left Air Temperature Door Control |
| 5E | L-BU | 733 | Left Air Temperature Door Position Signal |
| 5F | - | - | Not Used |
| 6A | - | - | Not Used |
| 6B | BN | 2409 | Interior Park Lamps Supply Voltage |
| 6C | BK | 1050 | Ground |
| 6D-6F | - | - | Not Used |
| 7A | - | - | Not Used |
| 7B | TN | 1047 | PDM Class 2 Serial Data |
| 7C | OG | 4240 | Battery Positive Voltage |
| 7D | - | - | Not Used |
| 7E | OG | 1340 | Battery Positive Voltage |
| 7F | - | - | Not Used |
| 8A | WH/BK | 2339 | Lower Left Air Temperature Sensor Signal |
| 8B | - | - | Not Used |
| 8C | BN | 341 | Ignition 3 Voltage |
| 8D | D-BU | 1646 | Right Air Temperature Door Position Signal |
| 8E | WH/BK | 1236 | Right Air Temperature Door Control |
| 8F | D-GN | 1614 | Recirculation Door 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.