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 952 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LLY) - DTC P0016 TO DTC P0341)DTC P003ACOMPONENT TESTING
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Component Testing
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Component Testing
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.
IMPORTANT:
You must perform the Circuit/System Testing before proceeding with the Component Testing.
TC Control Solenoid
- Ignition OFF, disconnect the wire harness at the TC solenoid. Test for a resistance of less than 7 ohms across the TC solenoid.
- If the resistance is more than 7 ohms, replace the TC solenoid.
- Test for infinite resistance between each terminal and the TC solenoid housing.
- If less than infinite resistance, replace the TC solenoid.
TC Vane Position Sensor
- Ignition OFF, remove the TC vane position sensor.
- Connect the harness connector to the TC vane position sensor.
- Ignition ON, slowly depress the button on the end of the TC vane sensor. Observe the TC vane position sensor parameter for a smooth decreasing percentage from 100-0 percent without any spikes or dropouts.
- If the TC Vane Position Sensor parameter does not increment smoothly, replace the TC vane position sensor.
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.