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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Intelligent Distribution Brake Diagnosis (2 Of 2) >> DTC U0422-81: Data from Body Control Module (BCM)- Invalid Serial Data Received >> VinFast DTC Guided Repair Instruction >> Operating Conditions

Operating Conditions

Enable Criteria ECU On
IGN On
The battery voltage is between 9V to 16V.
Failure Criteria Sensor fault information is received continuously.
  1. BCM_STAT_DoorAjarFL = 0x3: Invalid
  2. BCM_STAT_BrakeSwitch = 0x3: Invalid
Failure/Mature Time 500 ms
Pass Criteria Message is received normally over 500 ms.
Pass/De-mature Time 500 ms
Failure Aging 40 Ignition cycles.
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