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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Components

COMPONENTS ILLUSTRATION *1 IGNITION COIL ASSEMBLY *2 ENGINE WIRE *3 CAM TIMING OIL CONTROL SOLENOID ASSEMBLY *4 CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY *5 CYLINDER HEAD COVER SUB-ASSEMBLY *6 SPARK PLUG TUBE GASKET *7 CAMSHAFT POSITION SENSOR (for Intake Side)

Inspection

INSPECTION PROCEDURE 1. INSPECT CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 - 2 0 °C (32 °F) 6.3 to 7.3 Ω 2

Lexus ES: Stereo Component Amplifier Malfunction (B15A3)

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Display Malfunction (B15A6,B15B0)

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GPS Antenna Connection Malfunction(short) (B15C0,B15C1)

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Components

Inspection