Lexus ES: ANC ECU EEPROM Data Memory Failure (B1AA044)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Audio / Video / Active Noise Control System (for Gasoline Model) / ANC ECU EEPROM Data Memory Failure (B1AA044)

DESCRIPTION

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

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B1AA044	ANC ECU EEPROM Data Memory Failure	Stereo component equalizer assembly malfunction	Stereo component equalizer assembly

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Active Noise Control > Clear DTCs

2.	CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Active Noise Control > Trouble Codes

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

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Disposal

DISPOSAL PROCEDURE 1. DISPOSE OF HOOD SUPPORT ASSEMBLY (a) Secure the hood support assembly horizontally in a vise with the piston rod pulled out. (b) Wearing safety glasses, gradually cut a part within the area (a) shown in the illustration using a metal saw to release the gas. Specification:

Installation

INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL REAR DOOR ILLUMINATION LIGHT (REAR DOOR OUTSIDE HANDLE ASSEMBLY) Click here 2. INSTALL REAR DOOR SERVICE HOLE COVER Click here 3

Lexus ES: ANC ECU EEPROM Data Memory Failure (B1AA044)

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Disposal

Installation