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Home >> Chevrolet >> 2013 >> Sonic RS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls/Fuel - 1.8L (LUW, LWE) - DTC P0443 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P1255 or P064A >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON.
  2. Verify DTC P0231, P0232 or P023F is not set.
    • If none of the DTCs are set 
  3. Verify that the area where the K27 fuel pump control module is located is free of debris, clutter, or any insulating material that would cause the K27 fuel pump control module to overheat.
    • If any debris, clutter, or other material is found 
    1. Clear the area where the K27 fuel pump control module is located.
    2. Clear the DTC and test drive the vehicle.
    3. Verify DTC P1255 or P064A is not set.
      • If DTC P1255 or P064A is set, replace the K27 fuel pump control module.
      • If DTC P1255 or P064A is not set
    4. All OK.
    • If no debris, clutter, or other material is found 
  4. Clear the DTC and test drive the vehicle.
  5. Verify DTC P1255 or P064A is not set.
    • If DTC P1255 or P064A is set 

      Replace the K27 fuel pump control module.

    • If DTC P1255 or P064A is not set. 
  6. All OK.
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