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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System & Fuel System - 6.6L (LLY) - DTC P0016 To DTC P0341) >> DTC P003A >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: You must perform the Circuit/System Testing before proceeding with the Component Testing.

TC Control Solenoid

  1. 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.
  2. 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

  1. Ignition OFF, remove the TC vane position sensor.
  2. Connect the harness connector to the TC vane position sensor.
  3. 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.
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