Toyota Yaris: Power Steering System / Calibration

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Steering / Power Assist Systems / Power Steering System / Calibration

CALIBRATION

POWER STEERING ECU INITIAL SETTING (ASSIST MAP WRITING) (USING GTS)

NOTICE:

If any of the following conditions are met, perform Power Steering ECU Initial Setting (assist map writing):

  • The power steering ECU assembly has been replaced.
  • The electric power steering column sub-assembly has been replaced.
  • There is a difference in steering effort between turning left and right.

(a) Perform Power Steering ECU Initial Setting (assist map writing).

(1) Align the front wheels straight ahead and center the steering wheel.

Chassis > EMPS > Utility

Tester Display

Power Steering ECU Initial Setting

NOTICE:

  • Do not turn the steering wheel sharply.
  • During the torque sensor zero point calibration the steering wheel will shudder. Do not touch the steering wheel until at least 3 seconds have elapsed after the shuddering has stopped.

(2) Check for RoBs.

Chassis > EMPS > Utility

Tester Display

Vehicle Control History (RoB)

NOTICE:

When Power Steering ECU Initial Setting (assist map writing) are completed, make sure to check for vehicle control history (RoB).

    How To Proceed With Troubleshooting

    CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the power steering system. *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2...

    Problem Symptoms Table

    PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Supply Voltage Circuit Circuit Voltage Out of Range (C123A1C)


    DESCRIPTION When a malfunction has occurred in the power source circuit, the AWD ECU assembly stores DTC C123A1C. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory C123A1C Supply Voltage Circuit Circuit Voltage Out of Range At a vehicle speed of 3 km/h (2 mph) or more, the IG1 terminal voltage is less than 9...

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

    Categories

    Break-In Period

    No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.

    Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.

    read more

     
    Copyright © 2022 www.toyaris4.com