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 897 (LIGHTING SYSTEMS)COMPONENT LOCATORLIGHTING SYSTEMS CONNECTORSTURN SIGNAL/MULTIFUNCTION SWITCH - C4

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Turn Signal/Multifunction Switch - C4

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Turn Signal/Multifunction Switch - C4

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, 2007 Chevrolet RV Cutaway, and 2007 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Turn Signal/Multifunction Switch - C4 Connector End View

Courtesy of GENERAL MOTORS CORP.

Turn Signal/Multifunction Switch - C4 Connector & Terminal Parts Information

Connector Part Information

OEM: 12047786
Service: 12085536
Description: 4-Way M Metri-Pack 150 Series (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

Turn Signal/Multifunction Switch - C4 Terminal Identification

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:

• 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.