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 MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWSCONNECTOR END VIEWSTHEFT DETERRENT CONTROL MODULE CONNECTOR END VIEW

2002 Chevrolet Avalanche 2500, RWD

Theft Deterrent Control Module Connector End View

2002 Chevrolet Avalanche 2500, RWDSECTION Theft Deterrent Control Module Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		70066 5-way F Molex (BLK)
Pin	Wire Color	Circuit No.	Function
1	ORN	1140	Battery Positive Voltage
2	PNK	1020	Off/Run/Crank Voltage
3	BLK/WHT	451	Ground
4	PPL	1807	Class 2 Serial Data
5	YEL	710	Class 2 Serial Data - Primary

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.