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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Cooling Systems >> Hybrid/EV System Heating And Cooling >> Diagnostic Information and Procedures >> DTC P1FFF: System Isolation/Coolant Level Sensor Fault - Hybrid/EV Battery Charging System Disabled >> Circuit/System Verification

Circuit/System Verification

  1. Verify that DTC P0AA6, P1AE6, P1FFB, P1FFC, P1FFD or P1FFE are not set.
    • If none of the DTCs are set 
  2. Clear Codes. Verify DTC P0AA6, P1AE6, P1FFB, P1FFC, P1FFD or P1FFE does not set.
    NOTE: In order to clear P1FFF, the K114B Hybrid/EV Powertrain Control Module 2 may have to be programmed even if the module contains the current calibration level.
    • If none of the DTCs are set 
  3. All OK.
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