Toyota Yaris: Steering Column Assembly / Inspection

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Steering / Steering Column / Steering Column Assembly / Inspection

INSPECTION

PROCEDURE

1. INSPECT PRELOAD

(a) Secure the steering column assembly in a vise using aluminum plates, cloths and wooden blocks.

NOTICE:

  • Do not overtighten the vise, as the steering column assembly may become deformed.
  • Support the steering column assembly with wooden blocks or similar items to ensure that it does not fall.

*a

Wooden Block

*b

Cloth

(b) Using a 10 mm hexagon socket wrench, install the steering wheel assembly set bolt to the steering main shaft.

NOTICE:

Do not apply excessive torque to the steering wheel assembly set bolt by using a tool such as an impact wrench.

HINT:

The steering wheel assembly set bolt is used for turning the steering main shaft during inspection of the steering main shaft rotating torque.

Remove the steering wheel assembly set bolt after performing this inspection.

(c) Using a torque wrench, turn the steering main shaft at a constant rate of approximately 1 revolution every 4 seconds and measure the preload.

Preload:

1.0 to 2.2 N*m (11 to 22 kgf*cm, 9 to 19 in.*lbf)

If the preload is not as specified, replace the power steering ECU assembly or electric power steering column sub-assembly with a new one.

Turn

(d) Remove the steering wheel assembly set bolt.

2. INSPECT STEERING COLUMN ASSEMBLY

(a) Check that the 2 bushings are securely installed to the steering column assembly.

If the bushings are deformed, missing or damaged, replace the electric power steering column sub-assembly with a new one.

    Disassembly

    DISASSEMBLY CAUTION / NOTICE / HINT NOTICE: Do not drop the power steering ECU assembly, strike it with tools or subject it to impacts. If the power steering ECU assembly is subjected to an impact, replace it with a new one...

    Reassembly

    REASSEMBLY CAUTION / NOTICE / HINT NOTICE: Do not drop the power steering ECU assembly, strike it with tools or subject it to impacts. If the power steering ECU assembly is subjected to an impact, replace it with a new one...

    Other information:

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Terminals Of Ecu


    TERMINALS OF ECU NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work...

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Terminals Of Ecu


    TERMINALS OF ECU TERMINALS OF ECU *a Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) - - Terminal No. (Symbol) Terminal Description 1 (GND2) Pump motor ground 2 - (Not used) 3 - (Not used) 4 - (Not used) 5 (STP2) Stop light switch assembly input 6 - (Not used) 7 - (Not used) 8 - (Not used) 9 - (Not used) 10 (CANL) CAN communication line L 11 - (Not used) 12 (IGR) ECU power supply input 13 (BM) Motor relay power supply 14 (SP1) Speed signal output for speedometer 15 (RR-) Rear wheel speed RH (-) signal input 16 (RR+) Rear wheel speed RH (+) power supply output 17 (FL-) Front wheel speed LH (-) signal input 18 (FL+) Front wheel speed LH (+) power supply output 19 - (Not used) 20 - (Not used) 21 - (Not used) 22 (CANH) CAN communication line H 23 - (Not used) 24 - (Not used) 25 (GND1) Skid control ECU (brake actuator assembly) ground 26 (STPO) Stop light switch assembly output 27 - (Not used) 28 (RL-) Rear wheel speed LH (-) signal input 29 (RL+) Rear wheel speed LH (+) power supply output 30 (FR-) Front wheel speed RH (-) signal input 31 (FR+) Front wheel speed RH (+) power supply output 32 - (Not used) 33 (CSW) VSC OFF switch (combination switch assembly) input 34 - (Not used) 35 (STP) Stop light switch assembly input 36 (CA2H) CAN communication line H 37 (CA2L) CAN communication line L 38 (+BS) Solenoid relay power supply TERMINAL INSPECTION (a) Disconnect the A108 connector and measure the voltage or resistance on the wire harness side...

    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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