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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Head Up Display Diagnosis >> DTC U0140-87: Lost Communication With BCM - Missing Message >> VinFast DTC Guided Repair Instruction >> Operating Conditions

Operating Conditions

Enable Criteria
  1. IGN ON and not in the first 1s
  2. Battery voltage is between 9V to 16V
Failure Criteria The message has not been received in Ten consecutive cycles
  1. BCM_VOLTAGE
  2. BCM_CLAMP_STAT
  3. BCM_RainLightSnr
Failure/Mature Time
  1. BCM_VOLTAGE - 5000 ms
  2. BCM_CLAMP_STAT - 1000 ms
  3. BCM_RainLightSnr - 1000 ms
Pass Criteria Communication normal
Pass/De-mature Time Immediate
Failure Aging 40 Ignition cycles
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