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Home >> VinFast >> 2023 >> VF9 Plus >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Multimedia System Diagnosis (2 Of 2) >> DTC U040F-83: Invalid Data Received From Redundant Control Unit Module - Value Of Signal Protection Calculation Incorrect >> VinFast DTC Guided Repair Instruction >> Repair Instruction

Repair Instruction

Repair Actions

  1. Check for communication faults with RCU from other ECU's and investigate faults with RCU.
  2. If fault returns, check for communication faults from the Info CAN Communication BUS linking RCU and MHU and investigate faults with Info CAN Communication BUS
  3. If fault returns, replace RCU and clear DTC
  4. If fault returns, replace MHU and clear DTC