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 MANUALSCHEVROLET2001EXPRESS 1/2 TON VAN V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRSERVICE PROGRAMMING SYSTEM (SPS)SERVICE PROGRAMMING METHODS
2001 Chevrolet Express 1/2 Ton Van V6-4.3L VIN W
Service Programming Methods
2001 Chevrolet Express 1/2 Ton Van V6-4.3L VIN WSECTION Service Programming Methods
The three methods of programming a control module and the proper tools for each method are as follows:
^ Remote Programming:
- The Tech 2 and the Techline Terminal
- The control module installed in the vehicle
^ Pass Through Programming:
- The Tech 2 or other scan tools, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software-The Tech 2 or other scan tools are used as an interface between the vehicle and the Techline Terminal or a personal computer.
- The control module installed in the vehicle.
^ Off-Board Programming, vehicle NOT available:
- The Tech 2, Techline Terminal, and OFF board programming adapter
- The control module NOT installed in a vehicle.
^ Remote Programming:
- The Tech 2 and the Techline Terminal
- The control module installed in the vehicle
^ Pass Through Programming:
- The Tech 2 or other scan tools, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software-The Tech 2 or other scan tools are used as an interface between the vehicle and the Techline Terminal or a personal computer.
- The control module installed in the vehicle.
^ Off-Board Programming, vehicle NOT available:
- The Tech 2, Techline Terminal, and OFF board programming adapter
- The control module NOT installed in a vehicle.
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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.