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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1091 (LIGHTING SYSTEMS)COMPONENT LOCATORLIGHTING SYSTEMS CONNECTORSCARGO LAMP/CENTER HIGH MOUNTED STOP LAMP (CHMSL) X1

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Cargo Lamp/Center High Mounted Stop Lamp (CHMSL) X1

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Cargo Lamp/Center High Mounted Stop Lamp (CHMSL) X1

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Cargo Lamp/Center High Mounted Stop Lamp (CHMSL) X1 Connector End Views

Courtesy of GENERAL MOTORS CORP.

Cargo Lamp/Center High Mounted Stop Lamp (CHMSL) X1 Connector Parts Information

Connector Part Information

OEM: 12162711
Service: See Catalog
Description: 2-Way F Socket Wedge W2 (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Cargo Lamp/Center High Mounted Stop Lamp (CHMSL) X1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
A	0.5 L-BU	1054	Stop Lamp Supply Voltage Signal
A	0.5 L-BU	1054	Stop Lamp Supply Voltage Signal
B	0.5 BK	1050	Ground
B	0.5 BK	1050	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.