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.
Turn Signal/Multifunction Switch Connector End view
2006 Buick Rainier 4.2 S, AWDSECTION Turn Signal/Multifunction Switch Connector End view
Turn Signal/Multifunction Switch C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | L-GN | 1427 | Right Turn Signal Switch Signal |
| B | PK | 639 | Ignition 1 Voltage |
| C | D-GN | 1428 | Left Turn Signal Switch Signal |
| D | OG | 57 | Left Cornering Lamp Supply Voltage (T87) |
| E | BN | 2309 | Front Park Lamps Supply Voltage |
| F | BK | 58 | Right Cornering Lamp Supply Voltage (T87) |
| G | BK/YE | 28 | Horn Relay Control |
| H | WH | 111 | Hazard Switch Signal |
Turn Signal/Multifunction Switch C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TN | 751 | Ground |
| B | YE/BK | 307 | Flash To Pass Signal |
| C | L-GN | 11 | Headlamp High Beam Supply Voltage |
| D-E | - | - | Not Used |
Turn Signal/Multifunction Switch C3
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| G | - | - | Not Used |
| H | PK | 94 | Windshield Washer Switch Signal 1 |
| J | GY | 478 | Windshield Wiper Switch Supply Voltage |
| K | D-BU/WH | 477 | Windshield Wiper Switch High Signal |
| L-N | - | - | Not Used |
Turn Signal/Multifunction Switch C4 (K34)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BN | 341 | Ignition 3 Voltage |
| B | GY/WH | 397 | Cruise Control Switch On Signal |
| C | GY/BK | 87 | Cruise Control Resume/Accel Switch Signal |
| D | D-BU | 84 | Cruise Control Set/Coast Switch Signal |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.