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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Multimedia System Diagnosis (2 Of 2) >> DTC U040F-82: Invalid Data Received From Redundant Control Unit Module - Alive/Sequence Counter Incorrect/Not Updated >> VinFast DTC Guided Repair Instruction >> Operating Conditions
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Operating Conditions

Enable Criteria
  1. Ignition ON
  2. The system battery voltage is between 9V and 16V
Failure Criteria ANY ONE of the following rolling count signals does not behave according to CAN specification:
RCU_WarnMsg (0x4A7). ALV_RCU_WarnMsg
Failure/Mature Time Immediate
Pass Criteria ALL of the following rolling count signals behave according to CAN specification: RCU_WarnMsg (0x4A7). ALV_RCU_WarnMsg
Pass/De-mature Time Immediate
Failure Aging 100 Ignition Cycles
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