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.

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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: Vacuum Sensor

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Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987)

DESCRIPTION The AWD ECU assembly receives signals from the ECM, steering sensor and skid control ECU (brake actuator assembly) via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory U010087 Lost Communication with ECM/PCM "A" Missing Message When the ignition switch is ON, the IG1 terminal voltage is 10 V or more and the vehicle speed is 60 km/h (37 mph) or more, signals cannot be received from the ECM for 1 second or more CAN communication system AWD ECU assembly ECM Displayed Yes U012687 Lost Communication with Steering Angle Sensor Module Missing Message When the following continues: When the IG1 terminal voltage is 10 V or more, communication with the steering sensor is impossible for 1 second or more When the IG1 terminal voltage is 10 V or more, a condition in which communication with the steering sensor is impossible occurs 1 time or more within a 5-second period, and this occurs 10 times within 60 seconds CAN communication system AWD ECU assembly Steering sensor Displayed Yes U012987 Lost Communication with Brake System Control Module Missing Message When the IG1 terminal voltage is 10 V or more, communication with the skid control ECU (brake actuator assembly) is impossible for 3 seconds or more CAN communication system AWD ECU assembly Skid control ECU (Brake actuator assembly) Displayed Yes PROCEDURE 1...