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Home >> Chevrolet >> 2012 >> Volt >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications System - DTC B1000 To DTC U183E >> Diagnostic Information and Procedures >> DTC U1818 >> Circuit/System Verification

Circuit/System Verification

  1. Verify that DTC U0100 is not set.
  2. Verify that DTC U0074, P06E4, B1428, B1370, B1380, B1440, B1441, B1325, or P0562 is not set.
  3. Verify that DTCs U1817, U1821, and U182D are not set.
    • If all the DTCs are set, refer to DTC U0074 .