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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures (B1000-U1833) >> Diagnostic Information and Procedures >> DTC P16B7 >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify DTC P06E4 is not set.
    • Go to next step: If DTC P06E4 is not set 
  3. Verify DTC U016B is not set.
    • Go to next step: If DTC U016B is not set 
  4. Refer to Circuit/System Testing.