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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System Diagnosis (PHEV) >> DTC U0111: Lost Communication With Battery Energy Control Module 'A' >> Wiring Inspection >> Module Circuit Inspection >> Power Circuit Inspection

Power Circuit Inspection

  1. Ignition "OFF".
  2. Refer to BMS ECU and disconnect BMS connector.
  3. Ignition "ON".
  4. Measure voltage between Pin No. 1, 2 (Memory Power), Pin No. 3 (ON/START Input) terminal of BMS harness connector and chassis ground.

    Specification  : B+

  5. Is the measured value within specification?

    YES 

    NO 

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