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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Autonomous Emergency Braking (AEB) System Diagnosis (HEV) >> DTC C1638-81: ACC/SCC Communication Error >> Wiring Inspection >> C-CAN Communication Line Inspection >> Check short to battery in CAN communication Line

Check short to battery in CAN communication Line

  1. Ignition OFF.
  2. Connect all related module connectors.
  3. Ignition ON.
  4. Measure voltage between C-CAN High terminal of AEB(SCC) Module harness connector and chassis ground.
  5. Measure voltage between C-CAN Low terminal of AEB(SCC) Module harness connector and chassis ground.

    Specification  : Below 5V

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