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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System & Fuel System - 3.6L - DTC P0335 To DTC P2097) >> DTC P0638, P2100, P2101, or P2119 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON, observe the scan tool DTC information. Verify DTCs P0121, P0122, P0123, P0221, P0222, or P0223 are not set.
  2. Verify the scan tool TP sensor 1 voltage parameter is between 3.24-3.54 volts, and TP sensor 2 voltage parameter is between 1.36-1.86 volts.
  3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release the pedal. Repeat the procedure several times. DTCs P0638, P2111, P2112, or P2119 should not set.
  4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs P0638, P2111, P2112, or P2119 should not set.
  5. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.