Toyota Yaris: Stop And Start / Vacuum Sensor Assembly

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Engine & Hybrid System / Stop And Start / Vacuum Sensor Assembly

Components

COMPONENTS

ILLUSTRATION

*1

VACUUM SENSOR GROMMET

*2

VACUUM SENSOR ASSEMBLY

Non-reusable part

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On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT VACUUM SENSOR ASSEMBLY

(a) Connect the GTS to the DLC3.

(b) Start the engine.

(c) Turn the ignition switch off.

(d) Turn the ignition switch to ON.

(e) Turn the GTS on.

(f) Enter the following menus: Powertrain / Stop and Start / Data List / Brake Boost Pressure.

Powertrain > Stop and Start > Data List

Tester Display

Brake Boost Pressure

(g) Compare the "Brake Boost Pressure" values before and after the brake pedal was depressed 5 times.

Standard:

Internal pressure changes by 20 kPa (150 mmHg, 5.91 in.Hg) or more.

HINT:

  • Standard atmospheric pressure is 101 kPa (758 mmHg, 29.8 in.Hg).
  • For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by 1 kPa (8 mmHg, 0.295 in.Hg).
  • Atmospheric pressure varies with weather.

Removal

REMOVAL

CAUTION / NOTICE / HINT

NOTICE:

After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 120 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal.

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.

  • 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

    Stop and start system

    Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)

  • 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

Click here

2. REMOVE VACUUM SENSOR ASSEMBLY

(a) Disconnect the vacuum sensor assembly connector from the vacuum sensor assembly.

(b) Remove the vacuum sensor assembly from the brake booster assembly.

3. REMOVE VACUUM SENSOR GROMMET

(a) Remove the vacuum sensor grommet from the brake booster assembly.

Installation

INSTALLATION

PROCEDURE

1. INSTALL VACUUM SENSOR GROMMET

(a) Install the new vacuum sensor grommet to the brake booster assembly.

2. INSTALL VACUUM SENSOR ASSEMBLY

(a) Install the vacuum sensor assembly to the brake booster assembly so that the vacuum sensor assembly is angled as shown in the illustration.

*a

45° +/- 20°

(b) Connect the vacuum sensor assembly connector to the vacuum sensor assembly.

3. INSTALL BRAKE MASTER CYLINDER SUB-ASSEMBLY

Click here

    Stop And Start System Cancel Switch Assembly

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    Power Source & Network

    h..

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