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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Multimedia System Diagnosis (2 Of 2) >> DTC B1623-00: Telematics Hardware Secure Module Failure >> VinFast DTC Guided Repair Instruction >> Failure Description

Failure Description

Vehicle Program VF8/VF9
ECU MHU
DTC Number B1623-00 
DTC Name Telematics Hardware Secure Module Failure - No Sub Type Information
Failure Type Byte 00 - No Sub Type Information
Definition and Potential Cause This error is caused due to the Authentication fault in Telematics.
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