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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control Diagnosis (2 Of 3) >> DTC U0422-82: Invalid Data Received From BCM Control Module - Alive/Sequence Counter Incorrect/Not Updated >> VinFast DTC Guided Repair Instruction >> Repair Instruction
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Repair Instruction

Repair Actions

  1. Check for communication faults with BCM from other ECU's and investigate faults with BCM.
  2. If fault returns, check for communication faults from the Body CAN communication BUS linking CCU-F/R and BCM and investigate faults with Body CAN communication BUS.
  3. Check sender ECU software status.
  4. If fault returns, replace BCM and clear DTC.
  5. If fault returns, replace CCU-F/R and clear DTC.