Toyota Yaris: Engine Stop And Start Ecu / Removal

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Stop And Start / Engine Stop And Start Ecu / Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed, installed, or replaced during the engine stop and start ECU removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedures

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Replacement of Engine stop and start ECU

  1. Upload the number of starter operations
  2. Reset air conditioning information
  3. Learning air conditioning information
  4. Clear the zero point calibration data
  5. Perform zero point calibration of the deceleration sensor
  6. Check the oil pump with solenoid assembly

Stop and start system

Update ECU security key

Vehicle control history (RoB) are stored

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.

    -

PROCEDURE

1. READ NUMBER OF STARTER OPERATIONS

Click here

2. REMOVE ECU INTEGRATION BOX RH

Click here

3. REMOVE ENGINE STOP AND START ECU

(a) Disengage the 2 claws and remove the engine stop and start ECU from the ECU integration box RH.

NOTICE:

  • If the ECU integration box RH is deformed or damaged, replace it.
  • Do not bend the 2 claws more than necessary.

    Components

    C..

    Installation

    INSTALLATION CAUTION / NOTICE / HINT NOTICE: After performing the update ECU security key procedure, make sure to perform the initialization procedure for when the cable has been disconnected and reconnected to the negative (-) auxiliary battery terminal...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Reassembly


    REASSEMBLY PROCEDURE 1. INSTALL GENERATOR DRIVE END FRAME BEARING (a) Using SST and a press, install a new generator drive end frame bearing. SST: 09950-60011 09951-00470 SST: 09950-70010 09951-07100 (b) Fit the tabs of the retainer plate into the cutouts of the generator drive end frame to install the retainer plate...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Adjustment


    ADJUSTMENT CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after completing the rear wheel alignment procedure are shown below. Necessary Procedures After Procedure Performed Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link Rear wheel alignment adjustment ECU Data Initialization Active torque split AWD system Calibration DTCs are stored Slip indicator light illuminates VSC disabled or malfunctions PROCEDURE 1...

    Categories

    Turning the Engine Off

    Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.

    Automatic transaxle: Shift the selector lever to the P position and set the parking brake.

    Press the push button start to turn off the engine. The ignition position is off.

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