Toyota Yaris: Active Noise Control System / Parts Location

Precaution

PRECAUTION PRECAUTION FOR ACTIVE NOISE CONTROL SYSTEM (a) If the active noise control microphone garnish hole is blocked, clean away the blockage and perform diagnosis...

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...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Turbocharger Noise

DESCRIPTION HINT: Turbocharger noise is classified into two types. These are whistling sound and chattering sound. During troubleshooting, first determine the type of noise. Type of Abnormal Noise Outline of Abnormal Noise Major Trouble Area Whistling sound (airflow sound) The whistling sound volume and pitch are proportional to the turbocharger or engine speed...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Antenna Coil Circuit Voltage Out of Range (B27841C)

DESCRIPTION When an open or short circuit is detected in the transponder key amplifier coil built into the engine switch, the certification ECU (smart key ECU assembly) stores this DTC. This DTC is also stored as a history DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B27841C Antenna Coil Circuit Voltage Out of Range The transponder key amplifier coil built into the engine switch is open (see below) or shorted (determined by communication with certification ECU (smart key ECU assembly))...