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Home >> Lexus >> 2020 >> LC 500 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes (Coupe) (2 Of 2) & Symptom Tests (1 Of 2) >> Navigation System >> DTC B15D3: Stereo Component Amplifier Disconnected [03/2017 - 05/2023] >> Description

DTC B15D3: Stereo Component Amplifier Disconnected [03/2017 - 05/2023]: Description

The radio receiver assembly and stereo component amplifier assembly are connected by the MOST communication line.

This DTC is stored when a MOST communication error occurs between the radio receiver assembly and stereo component amplifier assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15D3 Stereo Component Amplifier Disconnected A device that is listed in the MOST network connected device record of the master unit is missing.
  • Stereo component amplifier assembly power source circuit
  • MOST circuit between radio receiver assembly and stereo component amplifier assembly
  • Stereo component amplifier assembly
  • Radio receiver assembly
  • Harness or connector

HINT: 

For the MOST communication line, the radio receiver assembly is the master unit.