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Home >> Lexus >> 2017 >> NX 200t Base, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes (2 Of 2) >> Navigation System >> DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B7: Bluetooth Module Malfunction; DTC B15BA: XM Tuner Malfunction; DTC B15F9: UART Communication Malfunction(for A/C) [10/2014 - 09/2017] >> Description
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DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B7: Bluetooth Module Malfunction; DTC B15BA: XM Tuner Malfunction; DTC B15F9: UART Communication Malfunction(for A/C) [10/2014 - 09/2017]: Description

These DTCs are stored when a malfunction occurs in the radio receiver assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15A0 LAN Master Malfunction When one of the conditions below is met:
  • Bus malfunction
  • Sub-microprocessor malfunction
  • EEPROM error
Radio receiver assembly
B15AD Navigation Processor Malfunction When either of the conditions below is met:
  • A short to ground, short to +B or open occurs in the gyro signal circuit
  • Gyro sensor malfunction
Radio receiver assembly
B15B7 Bluetooth Module Malfunction "Bluetooth" module malfunction Radio receiver assembly
B15BA XM Tuner Malfunction When either of the conditions below is met:
  • Internal IC malfunction
  • Tuner malfunction
Radio receiver assembly
B15F9 UART Communication Malfunction(for A/C) When either of the following conditions is met:
  • Open in UART communication line is detected based on radio receiver assembly activation failure
  • Open in UART communication line is detected based on communication error
Radio receiver assembly