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Home >> Pontiac >> 2008 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls And Fuel - 3.8L - DTC P0016 To DTC P0350) >> DTC P0120, P0220, or P2135 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Turn ON the ignition with your foot off the accelerator pedal. Observe the TP sensor 1 voltage parameter on the scan tool. The reading should be between 0.38-0.71 volt.
  2. Ignition ON, observe the TP sensor 2 voltage parameter on the scan tool. The reading should be between 0.28-0.81 volt.
  3. Ignition ON, observe the scan tool TP sensor 1 voltage parameter. The reading should be between 0.71-4.51 volts and change with accelerator pedal input.
  4. Ignition ON, observe the scan tool TP sensor 2 voltage parameter. The reading should be between 0.81-4.60 volts and change with accelerator pedal input.
  5. Ignition ON, observe the scan tool TP sensor 1 and 2 parameter. The scan tool should indicate Agree.
  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.
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