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Home >> Chevrolet >> 2009 >> Chevy Express G2500, Van Cargo Extended, 6.6 6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L LMM - DTC P1224 To DTC P2463 >> DTC P2457 >> Circuit/System Verification

Circuit/System Verification

  1. Verify that DTCs P0116, P0117, P0118, P0128, P040C, P040D, P041C, P041D or P040F are not set.
  2. Engine running, observe the DTC information with a scan tool. DTC P2457 should not set.
  3. Operate the vehicle within the Conditions for Running the DTC to verify that 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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