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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Vehicle Control Diagnosis (06 Of 10) >> DTC P1A05-83: DC/DC Converter Control Module "A"- 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 POD (DC/DC) from other ECU's and investigate faults with POD (DC/DC)
  2. If fault returns, check for communication faults from the PT CAN Communication BUS linking VCU and POD (DC/DC) and investigate faults with PT CAN Communication BUS
  3. If fault returns, check electrical circuits between VCU and POD (DC/DC), repair if faulty and clear DTC
  4. If fault returns, replace POD (DC/DC) and clear DTC
  5. If fault returns, replace VCU and clear DTC