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Home >> Cadillac >> 2016 >> ELR >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - DTC B1000 To DTC U183B >> Diagnostic Information and Procedures >> DTC B1000: Electronic Control Unit >> Circuit/System Verification
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Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify DTC B1000 is not set.
    • If DTC B1000 is set 

      Replace the device that set the DTC.

    • If DTC B1000 is not set 
  3. All OK
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