Toyota Yaris: Vacuum Pump / Removal

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Brake / Brake System (other) / Vacuum Pump / 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 vacuum pump 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.

  • 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.

    -

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

Click here

2. DRAIN ENGINE COOLANT

Click here

3. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY

Click here

4. REMOVE ECM

Click here

5. SEPARATE FUEL TUBE SUB-ASSEMBLY

(a) Disengage the clamp to separate the fuel tube sub-assembly.

6. SEPARATE NO. 1 FUEL VAPOR FEED HOSE

(a) Disengage the 2 clamps to separate the No. 1 fuel vapor feed hose.

7. SEPARATE ENGINE WIRE

(a) Disengage the clamp to separate the engine wire.

8. DISCONNECT OUTLET HEATER WATER HOSE

(a) Slide the clip and disconnect the outlet heater water hose from the No. 1 water by-pass pipe.

9. SEPARATE NO. 1 WATER BY-PASS PIPE

(a) Remove the 2 nuts to separate the No. 1 water by-pass pipe.

(b) Disengage the clamp.

10. DISCONNECT UNION TO CONNECTOR TUBE HOSE

(a) Slide the clip and disconnect the union to connector tube hose from the vacuum pump assembly.

11. DISCONNECT NO. 3 VACUUM TRANSMITTING HOSE

(a) Disconnect the No. 3 vacuum transmitting hose from the vacuum pump assembly.

12. REMOVE VACUUM PUMP ASSEMBLY

(a) Remove the 4 bolts and vacuum pump assembly from the engine assembly.

(b) Remove the No. 2 and No. 4 O-rings from the vacuum pump assembly.

*1

No. 2 O-ring

*2

No. 4 O-ring

    On-vehicle Inspection

    ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY Click here 2. DISCONNECT UNION TO CONNECTOR TUBE HOSE Click here 3. OPERATION CHECK (a) Connect the hose of the vacuum gauge to the vacuum pump assembly...

    Installation

    INSTALLATION PROCEDURE 1. INSTALL VACUUM PUMP ASSEMBLY (a) When using new vacuum pump assembly: (1) Apply engine oil to the No. 4 O-ring installed in a new vacuum pump assembly...

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