Removal and Installation

REMOVAL





1. PRECAUTION
- Care must be taken to replace parts properly because they could affect the performance of the steering system and result in a driving hazard.
- The LEXUS LS430 is equipped with Supplemental Restraint System (SRS) such as the driver airbag and front passenger airbag. Failure to carry out service operation in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the precautionary notices in Restraint Systems.




2. DISCONNECT BATTERY NEGATIVE TERMINAL





3. REMOVE STEERING WHEEL PAD

NOTICE: If the airbag connector is disconnected with the ignition switch at ON, DTCs will be recorded.

a. Place the front wheels facing straight ahead.
b. Remove the steering wheel lower No. 2 cover and pad switch modulator cover.
c. Using a torx driver, loosen the 2 torx screws until the groove along the screw circumference catches on the screw case.
d. Disconnect the connector.
e. Pull out the wheel pad from the steering wheel.
f. Using a screwdriver, disconnect the airbag connectors as shown in the illustration.

CAUTION:
- When storing the wheel pad, keep the upper surface of the pad facing upward.
- Never disassemble the wheel pad.

NOTICE: When removing the wheel pad, take care not to pull the airbag wire harness.





4. REMOVE STEERING WHEEL
a. Disconnect the connectors.
b. Remove the steering wheel set nut.
c. Place matchmarks on the steering wheel and main shaft assembly.
d. Using SST, remove the steering wheel.
SST 09950-50013 (09951-05010, 09952-05010, 09950-05020, 09954-05021)
5. REMOVE NO. 1 UNDER COVER
a. Remove the 2 screws and disconnect the No. 1 under cover.
b. Disconnect the 2 connectors, DLC3 and remove the No. 1 under cover.
6. REMOVE FINISH PLATE
7. REMOVE NO. 1 SAFETY PAD
a. Remove the 2 screws and disconnect the engine hood release lever.
b. Remove the 2 bolts and disconnect the No. 1 safety pad.
c. Disconnect the connectors, clamps and remove the No. 1 safety pad.
8. REMOVE COLUMN LOWER COVER
Remove the 3 screws and column lower cover.
9. REMOVE NO. 5 HEATER TO REGISTER DUCT
Remove the clip and No. 5 heater to register duct.
10. w/Smart key system: DISCONNECT STEERING LOCK SWITCH AND ACTUATOR
a. Disconnect the connectors.
b. Remove the 3 bolts and disconnect the steering lock switch and actuator.
11. REMOVE AIR SEALED PLATE





12. REMOVE SLIDING YOKE SUB-ASSEMBLY
a. Place matchmarks on the sliding yoke sub-assembly and control valve shaft.
b. Remove the 2 bolts and sliding yoke sub-assembly.
13. REMOVE STEERING COLUMN ASSEMBLY
a. Disconnect the connectors.
b. Loosen the clamp.
c. Disconnect the No. 2 column hole cover subassembly.
d. Remove the return spring.
e. Remove the 4 column assembly set nuts and steering column assembly.
f. Remove the intermediate shaft dust cover.
14. REMOVE COLUMN UPPER COVER, COMBINATION SWITCH AND SPIRAL CABLE
a. Remove the column upper cover.
b. Remove the 2 screws and combination switch.
c. Remove the spiral cable.

NOTICE: Do not disassemble the spiral cable or apply oil to it.





15. REMOVE NO. 2 INTERMEDIATE SHAFT ASSEMBLY
a. Place matchmarks on the intermediate shaft and main shaft assembly.
b. Remove the bolt and No. 2 intermediate shaft assembly.
16. REMOVE STEERING PAD SWITCH MODULATOR
Remove the 4 bolts and disconnect the steering pad switch modulator.

INSTALLATION
1. INSTALL STEERING PAD SWITCH MODULATOR
Install the steering pad switch modulator with the 4 bolts.





2. INSTALL NO. 2 INTERMEDIATE SHAFT ASSEMBLY
a. Align the matchmarks on the No. 2 intermediate shaft assembly and main shaft assembly.
b. Install the bolt.
Torque: 35 Nm (360 kgf-cm, 26 ft. lbs.)
3. INSTALL SPIRAL CABLE, COMBINATION SWITCH AND COLUMN UPPER COVER
a. Install the spiral cable.
b. Install the combination switch with the 2 screws.
c. Install the column upper cover.
4. INSTALL STEERING COLUMN ASSEMBLY
a. Install the intermediate shaft dust cover.
b. Install the steering column assembly with the 4 column assembly set nuts.
Torque: 25 Nm (260 kgf-cm, 19 ft. lbs.)
c. Install the return spring.
d. Connect the No. 2 column hole cover sub-assembly.
e. Torque the clamp.
f. Connect the connectors.





5. INSTALL SLIDING YOKE SUB-ASSEMBLY
a. Align the matchmarks on the sliding yoke sub-assembly and control valve shaft.
b. Install the sliding yoke sub-assembly with the 2 bolts.
Torque: 35 Nm (360 kgf-cm, 26 ft. lbs.)
c. Install the LH front fender apron with bolt and clip.
d. Install the return spring.
e. Tighten the clamp.
f. Connect the No. 2 column hole cover.
g. Connect the connectors.
6. INSTALL AIR SEALED PLATE
7. w/Smart key system: CONNECT STEERING LOCK SWITCH AND ACTUATOR
a. Connect the steering lock switch and actuator with the 3 bolts.
b. Connect the connectors.
8. INSTALL NO. 5 HEATER TO REGISTER DUCT
Install the No. 5 heater to register duct with the clip.
9. INSTALL COLUMN LOWER COVER
Install the column lower cover with the 3 screws.
10. INSTALL NO. 1 SAFETY PAD
a. Connect the connectors and clamps.
b. Install the No. 1 safety pad.
c. Connect the engine hood release lever with the 2 screws.
11. INSTALL FINISH PLATE
12. INSTALL NO. 1 UNDER COVER
a. Connect the 2 connectors and DLC3.
b. Install the No. 1 under cover with the 2 screws.





13. CENTER SPIRAL CABLE
a. Check that the front wheels are facing straight ahead.
b. Turn the cable counterclockwise by hand until it becomes harder to turn.
c. Then rotate the cable clockwise about 2.5 turns to align the marks.

HINT: The cable will rotate about 2.5 turns to either left or right of the center.

14. INSTALL STEERING WHEEL
a. Align the matchmarks on the steering wheel and main shaft assembly.
b. Install the steering wheel set nut.
Torque: 50 Nm (510 kgf-cm, 37 ft. lbs.)
c. Connect the connectors.





15. INSTALL STEERING WHEEL PAD

NOTICE:
- Never use airbag parts from another vehicle. When replacing parts, replace with new ones.
- Make sure the wheel pad is installed with the specified torque.
- If the wheel pad has been dropped, or there are cracks, dents or other detects on the case or connector, replace the wheel pad with a new one.
- When installing the wheel pad, take care that the wiring do not interfere with other parts and that they are not pinched between other parts.

a. Connect the airbag connectors.
b. Connect the connector.
c. Install the steering wheel pad after confirming that the circumference groove of the torx screws is caught on the screw case.
d. Using a torx socket wrench, torque the 2 screws.
Torque: 8.8 Nm (90 kgf-cm, 78 inch lbs.)
e. Install the pad switch modulator cover steering wheel lower No. 2 cover.
16. CHECK STEERING WHEEL CENTER POINT
17. INSPECT SRS WARNING LIGHT