LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Active Air Flap-Left Diagnosis (HEV) >> DTC U0001: High Speed CAN Communication Bus off >> Wiring Inspection >> CAN Communication Line Inspection >> Check short to battery in CAN communication line

Check short to battery in CAN communication line

  1. IG key "OFF".
  2. Disconnect HCU, PCM, MCU, BMS, AAF, FATC connector.
  3. IG key "ON".
  4. Measure voltage between CAN high terminal (# 3) of diagnostic connector and chassis ground.
  5. Measure voltage between CAN low terminal (#11) of diagnostic connector and chassis ground.

    Specification  : About 0V