Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Stereo Component Amplifier Malfunction (B15A3)

DESCRIPTION

This DTC is stored when a malfunction occurs in the stereo component amplifier assembly.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15A3

Stereo Component Amplifier Malfunction

When any of the following conditions is met:

  • Internal power supply malfunction
  • DSP error
  • EEPROM error

Stereo component amplifier assembly

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

    AV Signal Stoppage (Low Battery Voltage) (B158F)
    DESCRIPTION This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio receiver assembly dropping temporarily. DTC No. Detection Item DTC Detection ...

    Display Malfunction (B15A6,B15B0)
    DESCRIPTION These DTCs are stored when a malfunction occurs in the multi-display assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15A6 Display Malfunction When a ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Dynamic Torque Control Awd System: Linear Solenoid Power Supply System Malfunction (C120C)
    DESCRIPTION This DTC is output by the 4WD ECU assembly if a malfunction occurs in the linear solenoid power supply system. DTC No. Detection Item DTC Detection Condition Trouble Area C120C Linear Solenoid Power Supply System Malfunction When the 4WD relay is operating, the 4WD re ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Steering Lock System: Dtc Check / Clear
    DTC CHECK / CLEAR NOTICE: The steering lock ECU (steering lock actuator or upper bracket assembly) does not store history DTCs. If any DTCs are output, confirm and record them as soon as possible. Do not turn the engine switch off or clear the DTCs until the DTCs are confirmed and recorded. DTC ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2026 Copyright www.lexusrx.net
    0.0235