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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1696 (Engine Controls And Fuel - 3.6L (Ly7) - DTC P0010 To DTC P0232) >> DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the following DTCs are not set: DTC P0641 or P0651.
  2. Ignition ON, observe the scan tool TP sensor 1 voltage parameter. The reading should be between 4.75-0.35 volts and change with accelerator pedal input.
  3. Ignition ON, observe the scan tool TP sensor 2 voltage parameter. The reading should be between 0.25-4.59 volts and change with accelerator pedal input.
  4. Ignition ON, observe the scan tool TP sensor 1 and 2 parameter. The scan tool should indicate agree.
  5. Clear the DTCs with the scan tool.
  6. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  7. Verify that the following DTCs are not set: DTC P0120 or P0220.
    • If either or both DTCs P0120 or P0220 are set, and are the only DTCs set, replace the ECM.
  8. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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