INSTALLATION
PROCEDURE
1. INSTALL ELECTRIC POWER STEERING MOTOR SHAFT DAMPER
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Grease |
(a) Apply grease to a new electric power steering motor shaft damper.
NOTICE:
First wipe off the existing grease from the serrated part, and then apply the dedicated grease supplied with a new power steering ECU assembly or electric power steering column sub-assembly.
(b) Install the electric power steering motor shaft damper to the electric power steering column sub-assembly.
2. INSTALL POWER STEERING ECU ASSEMBLY
NOTICE:
(a) for Type A:
(1) Using a T40 "TORX" socket wrench, temporarily install the power steering ECU assembly to the electric power steering column subassembly with the 2 screws.
NOTICE:
When temporarily installing the 2 screws to the power steering ECU assembly, do not tighten them all the way down.
(b) for Type B:
(1) Temporarily install the power steering ECU assembly to the electric power steering column sub-assembly with the 2 bolts.
NOTICE:
When temporarily installing the 2 bolts to the power steering ECU assembly, do not tighten them all the way down.
(c) Install 2 service nuts to the steering main shaft. Recommended Service Nut: Thread Diameter 12.0 mm (0.472 in.) Thread Pitch 1.25 mm (0.0492 in.) |
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(d) Simultaneously rotate the service nut that was installed first counterclockwise and rotate the service nut that was installed second clockwise to lock them.
NOTICE:
Do not apply excessive torque to the service nuts by using a tool such as an impact wrench.
HINT:
The service nuts are used for turning the steering main shaft during inspection of the steering main shaft rotating torque.
Remove the service nuts after performing this inspection.
(e) Secure the steering column assembly in a vise using aluminum plates, cloths and wooden blocks. NOTICE:
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(f) Rotate the steering main shaft 180 degrees counterclockwise and then 180 degrees clockwise at a speed of 60 rpm, and repeat 2 to 3 times to center the axis of the power steering ECU assembly. [*1] |
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(g) for Type A:
(1) Using a T40 "TORX" socket wrench, tighten the 2 screws. [*2]
Torque:
18.5 N·m {189 kgf·cm, 14 ft·lbf}
(h) for Type B:
(1) Tighten the 2 bolts. [*2]
Torque:
18.5 N·m {189 kgf·cm, 14 ft·lbf}
(i) Using a torque wrench, measure the turning torque of the steering main shaft. Preload: 1.2 to 2.4 N*m (13 to 24 kgf*cm, 11 to 21 in.*lbf) NOTICE: Ensure that there is no abnormal resistance during rotation. If the turning torque is not as specified, loosen the 2 bolts and repeat steps [*1] and [*2] to recenter the axis of the power steering ECU assembly. |
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(j) Remove the 2 service nuts.
(k) Connect the connector. |
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3. INSTALL STEERING COLUMN ASSEMBLY
Click here
4. TORQUE SENSOR ZERO POINT CALIBRATION
Click here
5. ASSIST MAP WRITING
Click here
Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): ID BOX EEPROM Malfunction (B2790)
DESCRIPTION
When an internal malfunction occurs in the ID code box (immobiliser code ECU),
the certification ECU (smart key ECU assembly) stores this DTC.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B279 ...
Toyota CH-R Service Manual > Steering Lock System: 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. Check each sy ...