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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes & Symptom Tests (1 Of 2) >> Navigation System >> DTC B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction [06/2015 - 01/2018] >> Description

DTC B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction [06/2015 - 01/2018]: Description

This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen.

HINT: 

The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the navigation system vehicle customization screen:

DTC No. Detection Item DTC Detection Condition Trouble Area
B15F6 Main Body ECU Vehicle Information Reading/Writing Process Malfunction Main body ECU (multiplex network body ECU) vehicle setting processing error
  • CAN communication system
  • Power door lock control system
  • Wireless door lock control system
  • Lighting system (for Interior)
  • Lighting system (for Exterior)
  • Main body ECU (multiplex network body ECU)
  • Navigation receiver assembly