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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Multimedia System Diagnosis (1 Of 2) >> DTC U0422-83: Invalid Data Received from Body Control Module - Value of Signal Protection Calculation Incorrect >> 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 checksum signals is not equal to the expected value according to CAN specification:
BCM LOGICAL CLAMP 0x102.CHKSM BCM LOGICAL CLAMP
BCM STAT DOOR FLAP 0x105.CHKSM BCM STAT DOOR FLAP
BCM LIGHT 0x106.CHKSM BCM LIGHT
BCM VOLTAGE 0x10A.CHKSM BCM VOLTAGE
BCM CLAMP STAT 0x112.CHKSM BCM CLAMP STAT
BCM ODO 0x319.CRC BCM ODO
Failure/Mature Time Immediate
Pass Criteria ALL of the following checksum signals are equal to the expected value according to CAN specification:
BCM LOGICAL CLAMP 0x102.CHKSM BCM LOGICAL CLAMP
BCM STAT DOOR FLAP 0x105.CHKSM BCM STAT DOOR FLAP
BCM LIGHT 0x106.CHKSM BCM LIGHT
BCM VOLTAGE 0x10A.CHKSM BCM VOLTAGE
BCM CLAMP STAT 0x112.CHKSM BCM CLAMP STAT
BCM ODO 0x319.CRC BCM ODO
Pass/De-mature Tim Immediate
Failure Aging 100 Ignition Cycles