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Home >> VinFast >> 2023 >> VF9 Plus >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Head Up Display Diagnosis >> DTC U0156-87: Lost Communication With MHU - Missing Message >> VinFast DTC Guided Repair Instruction >> Operating Conditions

Operating Conditions

Enable Criteria
  1. Ignition ON
  2. Voltage is between 9 V to 16V
Failure Criteria The message has not been received in Ten consecutive cycles
  1. MHU_DIGIT_SPEED CAN
  2. MHU STATUS CAN
  3. MHU_DATE_TIME CAN
Failure/Mature Time
  1. MHU DIGIT SPEED CAN - 3000 ms
  2. MHU_STATUS CAN - 10000 ms
  3. MHU_DATE_TIME CAN - 10000 ms
Pass Criteria Communication normal
Pass/De-mature Time Immediate
Failure Aging 40 Ignition cycles
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