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.
| |
| (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 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 These DTCs are stored when a malfunction occurs in the active noise control microphone LH system. DTC No. Detection Item DTC Detection Condition Trouble Area B1AA296 Front Left Microphone Circuit Component Internal Failure Stereo component equalizer assembly detects malfunction in active noise control microphone LH for 4 seconds or more continuously when engine speed is 1200 rpm or more*
Harness or connector
Active noise control microphone LH
Stereo component equalizer assembly
B1AA31C Front Left Microphone Circuit Circuit Voltage Out of Range Stereo component equalizer assembly detects active noise control microphone LH connection malfunction for 4 seconds or more continuously*
Harness or connector
Active noise control microphone LH
Stereo component equalizer assembly
HINT: *: Malfunction monitoring is not performed under the following conditions, in order to prevent erroneous detection...
PRECAUTION PRECAUTION FOR REPLACING COMBINATION METER ASSEMBLY When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored...
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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