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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2005CHEVY EXPRESS G3500, VAN PASSENGER, LQ4REPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALOEM CONNECTOR END VIEWSLIGHTING SYSTEMS CONNECTOR END VIEWSTURN SIGNAL/MULTI-FUNCTION SWITCH CONNECTOR END VIEWS
2005 Chevrolet Chevy Express G3500, Van Passenger, LQ4
Turn Signal/Multi-Function Switch Connector End Views
2005 Chevrolet Chevy Express G3500, Van Passenger, LQ4SECTION Turn Signal/Multi-Function Switch Connector End Views
Turn Signal/Multi-Function Switch - C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | D-BU/WH | 1415 | Right Turn Signal Switch Signal |
| B | PK | 739 | Ignition 1 Voltage |
| C | L-BU/WH | 1414 | Left Turn Signal Switch Signal |
| D-F | - | - | Not Used |
| G | TN | 28 | Horn Relay Control |
| H | WH | 111 | Hazard Switch Signal |
Turn Signal/Multi-Function Switch - C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | YE | 307 | Headlamp Switch Flash to Pass Signal |
| B | L-GN | 11 | Headlamp Dimmer Switch Signal |
| C-D | - | - | Not Used |
| E | BK | 350 | Ground |
Turn Signal/Multi-Function Switch - C3
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| G | - | - | Not Used |
| H | PK | 94 | Windshield Washer Switch Signal |
| J | GY | 478 | Windshield Wiper Switch Signal 2 |
| K | D-BU | 477 | Windshield Wiper Switch Signal 1 |
| L-N | - | - | Not Used |
Turn Signal/Multi-Function Switch - C4 (K34)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PK | 739 | Ignition 1 Voltage |
| B | GY | 397 | Cruise Control On Switch 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.