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 VIEWSCENTER HIGH MOUNT STOP LAMP (CHMSL)
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Center High Mount Stop Lamp (CHMSL)
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Center High Mount Stop Lamp (CHMSL)
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.
Center High Mount Stop Lamp (CHMSL) Connector Parts Information
Connector Part Information
|
Center High Mount Stop Lamp (CHMSL) Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | L-BU | 20 | Stop Lamp Switch Signal |
| 2 | BK | 650 | Ground |
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.