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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1746 (LIGHTING SYSTEM)COMPONENT LOCATORLIGHTING SYSTEMS CONNECTOR END VIEWSTURN SIGNAL/MULTIFUNCTION SWITCH
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Turn Signal/Multifunction Switch
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Turn Signal/Multifunction Switch
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Turn Signal/Multifunction Switch Connector Parts Information
Connector Part Information
|
Turn Signal/Multifunction Switch Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | BK | 550 | Ground |
| 2 | L-BU | 14 | Left Turn Signal Lamps Supply Voltage |
| 3 | OG | 240 | Battery Positive Voltage (w/o T82) |
| GY | 691 | Headlamp Relay Output (w/T82) | |
| 4 | PU | 16 | Turn Signal Flasher Signal |
| 5 | D-BU | 1201 | Headlamp Low Beam Signal |
| 6 | D-BU | 15 | Right Turn Signal Lamps Supply Voltage |
| 7 | PK | 1200 | Headlamp High Beam Signal |
| 8 | BN | 9 | Park Lamp Supply Voltage (w/o T82) |
| L-BU | 74 | Park Lamp Switch Signal (w/T82) |
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.