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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Intelligent Distribution Brake Diagnosis (2 Of 2) >> DTC U0420-83: Data From Steering Angle Sensor (SAS) Control Module - Value Of Signal Protection Calculation Incorrect >> VinFast DTC Guided Repair Instruction >> Repair Instruction
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Repair Instruction

Repair Actions

  1. Check for communication faults with IDB from other ECU's and investigate faults with IDB
  2. If fault returns, check for communication faults from the Powertrain/Chassis CAN communication BUS linking EPS and IDB and investigate faults with Powertrain/Chassis CAN Communication BUS
  3. If fault returns, replace EPS and clear DTC
  4. If fault returns, replace IDB and clear DTC.