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Home >> Chevrolet >> 2009 >> Corvette Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Manual Transmission - TREMEC 6-Speed) >> Diagnostic Information and Procedures >> DTC P0803 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT: You must perform the Circuit/System Verification first.
  1. Disconnect the skip shift solenoid harness connector.
  2. Ignition ON, verify that a test lamp illuminates between the voltage circuit terminal B and ground.
    • If the test lamp does not illuminate, test the voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal and the circuit fuse is open, replace the skip shift solenoid.
  3. Verify that a test lamp does not illuminate between the voltage circuit terminal B and the control circuit terminal A.
    • If the test lamp illuminates, test the control circuit for a short to ground. If the circuit tests normal, replace the ECM.
  4. Remove the test lamp.
  5. Command the skip shift solenoid ON with a scan tool. Verify with a scan tool that the skip shift solenoid Ckt. Short Volts Test Status parameter is OK.
    • If not the specified value, test the control circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  6. Install a 3A fused jumper wire between the skip shift control circuit terminal A and the voltage circuit terminal B. Command the skip shift solenoid ON with a scan tool. Verify with a scan tool that the affected skip shift solenoid Ckt. Short Volts Test Status parameter is displaying Fault.
    • If not the specified value, test the control circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
  7. If all the circuits test normal, replace the skip shift assembly.
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