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 MANUALSBUICK2006RAINIER 4.2 S, AWDREPAIR AND DIAGNOSISELECTRICALMOTORS, SWITCHES, RELAYSOEM CONNECTOR END VIEWS (4 OF 5)LIGHTING SYSTEMS CONNECTOR END VIEWSHEADLAMP SWITCH CONNECTOR END VIEW
2006 Buick Rainier 4.2 S, AWD
Headlamp Switch Connector End view
2006 Buick Rainier 4.2 S, AWDSECTION Headlamp Switch Connector End view
Headlamp Switch C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | GY | 705 | 5-Volt Reference |
| B | BN/WH | 230 | Instrument Panel Lamps Dimming Control |
| C | BK | 2250 | Ground |
| D | WH | 103 | Headlamp Switch Headlamps On Signal |
| E | GY/BK | 308 | Park Lamp Switch On Signal |
| F | L-GN | 5462 | DRL Defeat Switch Signal |
| G | OG/BK | 2090 | Courtesy Lamps Dimming Input |
| H | GY/BK | 2226 | Instrument Panel Lamps Dimmer Switch Low Reference |
| J | D-BU/WH | 1495 | Courtesy Lamp On Signal |
| K | PU/WH | 1382 | LED Dimming Signal |
| L | PK | 1348 | Headlamp On Indicator Control |
| M | PU | 328 | Interior Lamp Defeat Switch Signal |
Headlamp Switch C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | OG | 192 | Front Fog Lamp Switch Signal (T96) |
| B | L-BU | 187 | Rear Fog Lamp Switch Signal (T79) |
| C | D-GN/WH | 1317 | Front Fog Lamp Relay and Indicator Control (T96) |
| D | YE | 1977 | Rear Fog Lamp Relay and Indicator Control (T79) |
| E | TN | 5463 | Daytime Running Lamp Override Indicator |
| F | D-GN | 189 | Headlamp Leveling Motor Supply Voltage (TR6) |
| G | PK | 639 | Ignition 1 Voltage (TR6) |
| H | BN/WH | 1871 | Headlamp Washer Switch Signal (CE4) |
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.