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Home >> VinFast >> 2023 >> VF9 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 >> Operating Conditions

Operating Conditions

Enable Criteria Ignition ON
Failure Criteria
  1. Authentication fail
  2. Fall back to bootstrap cert
  3. No connection to C-App
Failure/Mature Time 30s
Pass Criteria No failure, warning message is popped up
Pass/De-mature Time 3s
Failure Aging Reset LTE via MHI
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