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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Vehicle Control Diagnosis (10 Of 10) >> DTC U1255-98: Invalid Data Received from Active Grill Shutter "A" Control Module - Component or System Over Temperature >> VinFast DTC Guided Repair Instruction >> Repair Instruction

Repair Instruction

Repair Actions

  1. Allow AGS to cool down, cycle ignition on/off and recheck.
  2. If fault returns, check AGS temperature sensor, replace if faulty and clear DTC
  3. If fault returns, check electrical circuits between VCU and AGS temperature sensor, repair if faulty and clear DTC
  4. If fault returns, replace VCU and clear DTC