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Home >> Chevrolet >> 2009 >> Traverse LS, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - DTC P0638 To DTC P2635 >> DTC P1551 >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0121, P0122, P0123, P0221, P0222, P0223, P2100, P2101, or P2119 is not set.
  2. Start the engine. Observe the DTC information with a scan tool for 30 seconds. DTC P1551 should not set.
  3. 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 you observed from the Freeze Frame/Failure Records data.
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