Toyota Yaris: Active Noise Control System / System Description

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Audio & Visual & Telematics / Audio / Video / Active Noise Control System / System Description

SYSTEM DESCRIPTION

ACTIVE NOISE CONTROL SYSTEM

(a) The active noise control system is a system that detects muffled engine sounds produced in sync that fluctuates according to the engine speed, by using the active noise control microphone and outputs anti-phase control sound through the audio speakers to reduce muffled engine sounds.

The active noise control system includes the following functions.

Function Name	Function Description	Operation Conditions
ANC (Active Noise Control) Function	Function that reduces noise by using anti-phase and vibration control sound to interfere with muffled sounds	Engine running, engine speed 700 rpm or higher
ESE (Engine Sound Enhancement) Function	Function that produces realistic engine sounds by adding frequency component sound according to driving conditions such as vehicle speed and accelerator pedal depression	Engine running, engine speed 2000 rpm or higher

Parts Location

PARTS LOCATION ILLUSTRATION *1 ECM *2 NO. 1 ENGINE ROOM RELAY BLOCK - ECU-IGP NO. 3 FUSE ILLUSTRATION *1 STEREO COMPONENT EQUALIZER ASSEMBLY *2 DLC3 ILLUSTRATION *1 ACTIVE NOISE CONTROL MICROPHONE LH *2 ACTIVE NOISE CONTROL MICROPHONE RH *3 FRONT NO...

System Diagram

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Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY Click here 2. DISCONNECT UNION TO CONNECTOR TUBE HOSE Click here 3. OPERATION CHECK (a) Connect the hose of the vacuum gauge to the vacuum pump assembly. *a Vacuum Gauge *b Plug (b) Start the engine and warm it up for more than 2 minutes...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: ANC ECU Audio Amplifier Integrated Circuit (B1AA000,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 B1AA000 ANC ECU Audio Amplifier Integrated Circuit Stereo component equalizer assembly malfunction Stereo component equalizer assembly B1AA044 ANC ECU EEPROM Data Memory Failure Stereo component equalizer assembly malfunction Stereo component equalizer assembly PROCEDURE 1...