Removal and Replacement
POWER STEERING GEAR BOX AND LINKAGEREMOVAL AND INSTALLATION
CAUTION:
^ Before removing the steering wheel assembly and driver's air bag module, always refer to Service Precautions and Air bag Module and Clock Spring. Also, position the front wheels in a straight ahead direction. If you fail to do this, clock spring for SRS may get damage, making the SRS (air bag) inoperative, and it may cause a serious injury to the driver.
^ *: Indicates the bolts and nuts with friction coefficient stabilizer. In removal, ensure there is no damage, clean dust and soiling from bearing and thread surfaces, and tighten them to the specified torque.
^ After installation, perform a calibration for the ASC-ECU to learn the steering wheel sensor neutral point.
Pre-removal & Post-installation Operations:
Removal Steps 1-15:
REMOVAL SERVICE POINTS
[[A]] DISCONNECTION OF STEERING COLUMN SHAFT ASSEMBLY AND STEERING GEAR AND LINKAGE
Disconnect the steering gear from the steering column shaft assembly while sliding shaft A to shaft B with the clip claw as shown in the figure being pinched.
[[B]] SELF-LOCK NUT (TIE-ROD END AND KNUCKLE CONNECTION) REMOVAL
CAUTION:
^ Loosen the self-locking nut (tie-rod end connection) from the ball joint, but do not remove here. Use the special tool.
^ To prevent the special tool from dropping off, suspend it with a rope.
1. Install special tool MB991897 or MB992011 as shown in the figure.
2. Turn the bolt and knob to make the special tool jaws parallel, then hand-tighten the bolt. After tightening, check that the jaws are still parallel.
NOTE: To adjust the special tool jaws to be parallel, set the orientation of the knob as shown in the figure.
3. Unscrew the bolt to disconnect the ball joint.
[[C]] FRONT SUSPENSION CROSSMEMBER REMOVAL
1. Jack up and support the crossmember, and remove it.
2. Check the hoses and harnesses for roughness, and then remove the front suspension crossmember with the rear roll stopper and the steering gear and linkage installed.
INSTALLATION SERVICE POINTS
]]A[[ JOINT COVER GROMMET INSTALLATION
Install by aligning the marks of joint cover grommet and steering gear and linkage as shown in the figure.
]]B[[ Steering column bolt (connection of steering column shaft assembly and steering gear and linkage) installation
1. While sliding shaft A from shaft B with the clip claw as shown in the figure being pinched, connect the steering column shaft assembly and the steering gear and linkage.
2. Insert the steering column bolt from the no tapped bolt hole, and tighten it to the specified torque.
Tightening torque: 20 ± 5 Nm ( 15 ± 3 ft-lb)