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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC P0601-P0604, P0606 or P062F >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify DTC P0602 is not set.
    • If DTC P0602 is set 
    1. Program the device that set the DTC.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the device that set the DTC.
      • If the DTC does not set
    3. All OK.
    • If DTC P0602 is not set 
  3. Verify DTC P0601, P0603, P0604, P0606, or P062F is not set.
    • If DTC P0601, P0603, P0604, P0606, or P062F is set 

      Replace the device that set the DTC.

    • If DTC P0601, P0603, P0604, P0606, or P062F is not set 
  4. All OK
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