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Home >> VinFast >> 2023 >> VF8 Eco >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Body Control Module Diagnosis (5 Of 6) >> DTC U0477-81: Invalid Data From Serial Data Gateway Module "A" - Invalid Serial Data Received >> VinFast DTC Guided Repair Instruction >> Operating Conditions
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Operating Conditions

Enable Criteria Ignition ON Normal supply voltage 9V-16 V
Failure Criteria At least one of messages as below invalid
VCU_HV_DrvSys_status_0x0D9
IC_ODO_0x20C
IC_SENSOR_0x2CA
MHU_DATE_TIME_0x2F8
MHU_FOTA_STATUS_0x432
MHU_EvSetting_0x403
MHU_CarMode_Switch_0x4
Failure/Mature Time 0 ms
Pass Criteria All of messages as below valid
VCU_HV_DrvSys_status_0x0D9
IC_ODO_0x20C
IC_SENSOR_0x2CA
MHU_DATE_TIME_0x2F8
MHU_FOTA_STATUS_0x432
MHU_EvSetting_0x403
MHU_CarMode_Switch_0x447
Pass/De-mature Time 0 ms
Failure Aging 40 Ignition cycles
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