Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: ANC ECU EEPROM Data Memory Failure (B1AA044)

DESCRIPTION

This DTC are 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:

DTC B1AA044 is not output.

USE SIMULATION METHOD TO CHECK

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: High Pressure Fuel Pump Circuit Open (P123513)
DESCRIPTION The high-pressure direct injection fuel system consists of a spill control valve, check valve, fuel relief valve, fuel pressure sensor (for high pressure side), fuel pump assembly (for high pressure side) and direct fuel injector assemblies. The spill control valve adjusts the return vol ...

Toyota Avalon (XX50) 2019-2022 Owners Manual