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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Front/Rear Drive Motor Control Diagnosis (2 Of 2) >> DTC U160E-83: Invalid Data Received From Intelligent Distribute Brake (IDB) Control Module - Value Of Signal Protection Calculation Incorrect >> VinFast DTC Guided Repair Instruction >> Repair Instruction
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Repair Instruction

Warnings

WARNING: To help avoid personal injury, always treat the accessory power receptacle, accessory DC/AC power inverter module, AC circuit wires, and connectors as if AC high-voltage is present.
WARNING: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed. The High Voltage Disabling procedure will perform the following tasks:
  • Identify how to disable high voltage.
  • Identify how to test for the presence of high voltage.
  • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.
  • Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
  • Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
  • Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors. - Visually and functionally inspect the gloves before use. - Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.
  • Failure to follow the procedures exactly as written may result in serious injury or death.
WARNING: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed. Failure to follow the procedure exactly as written may result in serious injury or death.

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 PT CAN Communication BUS linking EDS and IDB and investigate faults with PT CAN Communication BUS
  3. If fault returns, check electrical circuits between EDS and IDB, repair if faulty and clear DTC
  4. If fault returns, replace IDB and clear DTC
  5. If fault returns, replace EDS and clear DTC
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