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Home >> Lexus >> 2012 >> IS F >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio / Video System (W/O Navigation System) (W/ MULTIDISPLAY) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display) >> DTC B15A1: Audio HU Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B5: DVD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction >> Description

DTC B15A1: Audio HU Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B5: DVD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction: Description

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

DTC No. DTC Detection Condition Trouble Area
B15A1 Bus malfunction, sub-micro processor malfunction Radio receiver assembly
B15B3 Tuner communication error
B15B4
B15B5
When one of the conditions below is met:
  • Mechanical communication error
  • Read malfunction
  • Mechanical malfunction
B15B7 "Bluetooth" module malfunction