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Home >> Lexus >> 2018 >> RX 450h 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 [08/2019 - ] >> Description

DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [08/2019 - ]: Description

This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the navigation 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 assembly 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)
  • Radio receiver assembly