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Home >> Cadillac >> 2015 >> XTS Base >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U0078: Control Module Communication Low Speed CAN Bus Off >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON.
  2. Verify DTC U0078 is not set.
    • If DTC U0078 is not set 
  3. All OK
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