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Home >> Lexus >> 2021 >> UX 200 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> (Navigation System) (Diagnostic Codes (2 Of 2) & Symptom Tests (1 Of 2)) >> (Navigation System) >> DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [10/2018 - 10/2019] >> Description

DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [10/2018 - 10/2019]: Description

This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the audio and visual system vehicle customization screen.

HINT: 

The certification ECU (smart key ECU assembly) controls the smart access system with push-button start (for Entry Function) related items that are customizable via the multi-display screen.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15F7 Certification ECU Vehicle Information Reading/Writing Process Malfunction Certification ECU (smart key ECU assembly) vehicle setting processing malfunction
  • CAN communication system
  • Smart Access System with Push-button Start (for Entry Function)
  • Certification ECU (smart key ECU assembly)
  • Radio receiver assembly