LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Electric Tailgate Diagnosis >> DTC U0422-83: Invalid Data From Body Control Module - Value of Signal Protection Calculation Incorrect >> VinFast DTC Guided Repair Instruction >> Repair Instruction
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Repair Instruction

Repair Actions

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