Toyota Yaris: Power Steering System / On-vehicle Inspection

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

ON-VEHICLE INSPECTION

PROCEDURE

1. CHECK STEERING EFFORT (TORQUE)

NOTICE:

These service operations may affect the SRS airbags. Be sure to read the precautionary notices concerning the SRS airbag system before servicing.

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(a) Stop the vehicle on a level, paved surface and align the wheels straight ahead.

(b) Remove the horn button assembly.

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(c) Connect the cable to the negative (-) auxiliary battery terminal.

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(d) Using a torque wrench, check that the steering wheel set bolt is properly tightened.

Torque:

62 N·m {632 kgf·cm, 46 ft·lbf}

(e) Turn the power switch on (READY) so that the power steering is ready to operate. (for HV Model)

(f) Start the engine so that the power steering is ready to operate. (for Gasoline Model)

(g) Turn the steering wheel 90 degrees to the right and check steering effort (torque) with the steering wheel turned. Check in the opposite direction using the same method.

Standard Steering Effort (Reference):

5.5 N*m (56 kgf*cm, 49 in.*lbf) or less

(h) Align the front wheels facing straight ahead.

(i) Turn the ignition switch off.

(j) Disconnect the cable from the negative (-) auxiliary battery terminal.

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(k) Install the horn button assembly.

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    Diagnostic Trouble Code Chart

    DIAGNOSTIC TROUBLE CODE CHART Power Steering System DTC No. Detection Item DTC Detection Condition Warning Indicate Return-to-normal Condition Note Link C05D604 Power Steering Control Module Processor System Internal Failure ECU internal malfunction (CPU malfunction) EPS warning light: Comes on Ignition switch ON again - C05D646 Power Steering Control Module Processor Calibration / Parameter Memory Failure ECU internal malfunction (EEPROM error) EPS warning light: Comes on Ignition switch ON again - C05D649 Power Steering Control Module Processor Internal Electronic Failure ECU internal malfunction (Peripheral circuit malfunction) EPS warning light: Comes on Ignition switch ON again - C10001C Control Module Internal Temperature Sensor "A" Circuit Voltage Out of Range ECU temperature sensor "A" range malfunction EPS warning light: Comes on The ECU judges the system has returned to normal - C123A17 Supply Voltage Circuit Circuit Voltage Above Threshold IG voltage is 18...

    Vehicle Control History

    VEHICLE CONTROL HISTORY DESCRIPTION Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Pre-ignition Detected (P137800)


    DESCRIPTION If sudden early ignition (pre-ignition) occurs continuously in a short period of time, a DTC is stored. This pre-ignition is a phenomenon inherent in boosted engines. Atomized engine oil and detached deposits (carbon) cause ignition and promote knocking during low-speed, high-output operation...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Problem Symptoms Table


    PROBLEM SYMPTOMS TABLE NOTICE: When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored...

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