Toyota Yaris: 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.
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(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.
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(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 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 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:
DESCRIPTION The ECM communicates with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U010087 Lost Communication with ECM/PCM "A" Missing Message When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 1 second or more...
ComponentsCOMPONENTS ILLUSTRATION
*1 AIR TUBE ASSEMBLY *2 THROTTLE BODY WITH MOTOR ASSEMBLY *3 THROTTLE BODY GASKET *4 NO. 2 THROTTLE BODY GASKET
N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1...
Categories
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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