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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0420 To DTC P3449 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P0601-P0604, P0606, or P062F (Fuel Pump Control Module) >> Circuit/System Verification
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Circuit/System Verification

NOTE:

This DTC may be stored as a history DTC without affecting the operation of the module. If stored only as a history DTC and not retrieved as a current DTC, do not replace the module.

  1. Verify that DTC P0602 is not set.
    • If the DTC is set, program the K27 fuel pump control module.
  2. Verify that DTCs P0601, P0603, P0604, P0606, and P062F are not set.
    • If the DTCs are set, program the K27 fuel pump control module. If the DTCs reset, replace the K27 fuel pump control module.
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