Toyota Yaris: Brake Booster / Inspection

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Brake / Brake System (other) / Brake Booster / Inspection

INSPECTION

PROCEDURE

1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY

(a) Check that there is ventilation from the booster side to the engine side, and no ventilation from the engine side to the booster side of the brake vacuum check valve assembly.

HINT:

If the result is not as specified, replace the brake vacuum check valve assembly.

*a	Ventilation
*b	No Ventilation
*c	Engine Side
*d	Brake Booster Assembly Side

Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during brake booster assembly removal/installation are shown below...

Reassembly

REASSEMBLY PROCEDURE 1. INSTALL VACUUM SENSOR ASSEMBLY (a) Install a new vacuum sensor grommet to the brake booster assembly. (b) Install the vacuum sensor assembly to the brake booster assembly as shown in the illustration...

Other information:

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

COMPONENTS ILLUSTRATION *1 BRAKE PEDAL PAD *2 BRAKE PEDAL RETURN SPRING *3 BRAKE PEDAL SUPPORT ASSEMBLY *4 PUSH ROD PIN *5 STOP LIGHT SWITCH MOUNTING ADJUSTER *6 BRAKE MASTER CYLINDER PUSH ROD CLEVIS *7 CLEVIS LOCK NUT *8 WIRE HARNESS *9 STOP LIGHT SWITCH ASSEMBLY - - Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping" : N*m (kgf*cm, ft...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Lost Communication with Steering Angle Sensor Module Missing Message (U012687,U010087,U012987,U014087,U023A87)

DESCRIPTION The power steering ECU assembly receives signals from the steering sensor, skid control ECU (brake actuator assembly), forward recognition camera, ECM and clearance warning ECU assembly via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note U010087 Lost Communication With ECM/PCM "A" Missing Message Lost communication with ECM CAN communication system ECM EPS warning light: Does not come on After normal confirmation - U012687 Lost Communication with Steering Angle Sensor Module Missing Message Lost communication with steering sensor CAN communication system Steering sensor EPS warning light: Does not come on After normal confirmation - U012987 Lost Communication with Brake System Control Module Missing Message Lost communication with skid control ECU (brake booster with master cylinder assembly) CAN communication system Skid control ECU (Brake booster with master cylinder assembly)(for TMC Made HV Model) Skid control ECU (Brake actuator assembly)(for TMMF Made HV Model) EPS warning light: Does not come on After normal confirmation - U014087 Lost Communication with Body Control Module Missing Message Lost communication with main body ECU (multiplex network body ECU) CAN communication system Main body ECU (multiplex network body ECU) EPS warning light: Does not come on After normal confirmation - U023A87 Lost Communication with Image Processing Module "A" Missing Message Lost communication with forward recognition camera CAN communication system Forward recognition camera EPS warning light: Does not come on After normal confirmation w/ Toyota Safety Sense PROCEDURE 1...