Toyota Yaris: Brake Booster / 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.
HINT:
When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
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Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Lane tracing assist system
Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more.
Pre-collision system
Parking support brake system
Stop and start system
Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)
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Learning completes when vehicle is operated normally
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Power door lock control system
- Back door opener
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Air conditioning system
After the ignition switch is turned to ON, the servo motor standard position is recognized.
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PROCEDURE
1. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY
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2. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY
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3. REMOVE DASH PANEL HEAT INSULATOR
| (a) Remove the nut. |
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| (b) Remove the nut, clamp and dash panel heat insulator. |
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4. DISCONNECT VACUUM HOSE ASSEMBLY
| (a) Slide the clip and disconnect the vacuum hose assembly from the brake booster assembly. |
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5. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
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6. REMOVE COLUMN HOLE COVER SILENCER SHEET
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7. DISCONNECT NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY
Click here
8. LOOSEN CLEVIS LOCK NUT
| (a) Loosen the lock nut of the brake master cylinder push rod clevis. |
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9. REMOVE BRAKE PEDAL RETURN SPRING
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10. REMOVE PUSH ROD PIN
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11. REMOVE BRAKE BOOSTER ASSEMBLY
| (a) Remove the bolt to separate the engine room main wire. |
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(b) Disengage the clamp.
| (c) Disconnect the vacuum sensor connector. |
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(d) Apply protective tape to the vehicle body as shown in the illustration.
 | Protective Tape |
| (e) Disengage the 5 clamps to separate the brake lines from the No. 2 brake tube clamp. |
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| (f) Disengage the clamp and remove the No. 2 brake tube clamp from the vehicle body. |
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| (g) Disengage the 5 clamps to remove the No. 1 brake tube clamp from the brake lines. |
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| (h) Using a union nut wrench, disconnect the 2 brake lines from the brake actuator assembly. |
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| (i) Remove the 4 nuts. |
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(j) Remove the brake master cylinder push rod clevis and lock nut from the brake booster assembly.
(k) Remove the brake booster assembly from the vehicle body.
NOTICE:
Do not apply excessive force to the brake lines.
12. REMOVE BRAKE BOOSTER GASKET
(a) Remove the brake booster gasket from the brake booster assembly.
Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Remove the brake vacuum check valve assembly from the brake booster assembly. (b) Remove the check valve grommet from the brake booster assembly...
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...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Freeze Frame Data
FREEZE FRAME DATA CHECK FREEZE FRAME DATA HINT: The ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. (a) Enter the following menus: Powertrain / Radar Cruise 1*1 or Radar Cruise 2*2 / Trouble Codes...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Power Window Motor Malfunction (B2311)
DESCRIPTION The power window regulator motor assemblies are operated by the multiplex network master switch assembly or power window regulator switch assembly. The power window regulator motor assemblies have motor, regulator and ECU functions. This DTC is stored when a power window regulator motor assembly is malfunctioning, or the ECU built into the power window regulator motor assembly determines that the fully closed power window position has deviated approximately 20 mm (0...
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Fuel Gauge
The fuel gauge shows approximately how much fuel is remaining in the tank when the ignition is switched ON. We recommend keeping the tank over 1/4 full.
