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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Power Steering System Diagnosis (2 Of 2) >> DTC U1816-83: HV Status - Value of Signal Protection Calculation Incorrect >> VinFast DTC Guided Repair Instruction >> Repair Instruction

Repair Instruction

Repair Actions

  1. Check for communication faults with VCU from other ECU's and investigate faults with VCU
  2. If fault returns, check for communication faults from the Powertrain CAN Communication BUS linking EPS2 and VCU and investigate faults with Powertrain CAN Communication BUS
  3. If fault returns, check electrical circuits between EPS2 and VCU, repair if faulty and clear DTC
  4. If fault returns, replace VCU and clear DTC
  5. If fault returns, replace EPS and clear DTC