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Home >> Lexus >> 2012 >> LS 460 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio Entertainment System (W/ Multi-Function) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/ 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 Code DTC Detection Condition Trouble Area
B15A1 Bus malfunction, sub-micro processor malfunction. Radio receiver assembly
B15B3 Tuner communication error.
B15B4
B15B5
Either condition is met:
  • Mechanical communication error.
  • Lead malfunction.
  • Mechanical malfunction.
B15B7 "Bluetooth" module malfunction.