Lexus ES: Stereo Component Amplifier Malfunction (B15A3)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System (for Gasoline Model) / 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

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.

USE SIMULATION METHOD TO CHECK

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

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Inspection

INSPECTION PROCEDURE 1. INSPECT FRONT DOOR ILLUMINATION LIGHT LH (FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH) *a Component without harness connected (Front Door Illumination Light LH (Front Door Outside Handle Assembly LH)) (a) Connect 4 dry-cell batteries (1.5 V) in series. NOTICE: Do not use r

Components

COMPONENTS ILLUSTRATION *1 VACUUM HOSE *2 FLOW SHUTTING VALVE (NO. 1 WATER BY-PASS HOSE) *3 WATER BY-PASS HOSE ASSEMBLY *4 STEERING GEAR HEAT INSULATOR *5 WIRE HARNESS *6 FRONT FRAME ASSEMBLY *7 TRANSMISSION BREATHER CLAMP *8 HOSE CLAMP Tightening torqu

Lexus ES: Stereo Component Amplifier Malfunction (B15A3)

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Inspection

Components