Steering Column (Service Information): Removal & Installation Lexus CT I

REMOVAL

Note. Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable.

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1. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
2. REMOVE HORN BUTTON ASSEMBLY Refer to «REMOVAL»(ref-568591-S14241402392013072300000)
3. REMOVE STEERING WHEEL ASSEMBLY See step 3
4. REMOVE STEERING COLUMN COVER NOTE: Removing the steering column cover in the incorrect order will cause the parts to break. Remove the 2 screws. Push the right and left sides of the steering column cover (lower side) to disengage the 4 claws. Insert fingers into the opening of the tilt lever of the steering column cover (lower side) to disengage the 2 claws and remove the steering column cover (lower side). HINT: Spread the claws to disengage them. Disengage the 4 clips and 2 guides from the steering column cover (upper side). Disengage the 2 claws to remove the steering column cover (upper side).
5. REMOVE TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY NOTE: Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable. Disconnect the connectors from the turn signal switch assembly with spiral cable sub-assembly. Using pliers, expand the clamp. TEXT IN ILLUSTRATION *1 Clamp *2 Claw While holding the clamp expanded, raise the claw using a screwdriver to disengage it, and then remove the turn signal switch assembly with spiral cable sub-assembly from the steering column assembly.
6. REMOVE UPPER INSTRUMENT PANEL ASSEMBLY Refer to «REMOVAL»(ref-568750-S36559688922013072300000)
7. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY Refer to «REMOVAL»(ref-568591-S39121235212013072300000)
8. REMOVE STOP LIGHT SWITCH ASSEMBLY . Refer to «REMOVAL - Step 2»(ref-568776-S19490783712013072300000)
9. REMOVE NO. 1 AIR DUCT SUB-ASSEMBLY Disengage the 2 claws to remove the No. 1 air duct sub-assembly.
10. REMOVE COLUMN HOLE COVER SILENCER SHEET Turn back the floor carpet. Remove the 2 clips and column hole cover silencer sheet.
11. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY Put matchmarks on the No. 2 steering intermediate shaft assembly and steering intermediate shaft. TEXT IN ILLUSTRATION *a Matchmark Remove the bolt. Separate the No. 2 steering intermediate shaft assembly from the steering intermediate shaft.
12. REMOVE STEERING POST ASSEMBLY Disconnect the connector from the power steering ECU assembly. TEXT IN ILLUSTRATION *1 Lock of Lock Lever *2 Lock Lever HINT: As shown in the illustration, pull out the lock of the lock lever and turn the lock lever to disconnect the connector. Disconnect the connector from the power steering ECU assembly. Disengage the 2 wire harness clamps. Disengage the wire harness clamps from the steering post assembly. Remove the bolt, 2 nuts and steering post assembly.
13. REMOVE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY Put matchmarks on the No. 2 steering intermediate shaft assembly and steering column assembly. TEXT IN ILLUSTRATION *a Matchmark Remove the bolt and No. 2 steering intermediate shaft assembly from the steering column assembly.

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1. INSPECT PRELOAD Secure the steering column assembly in a vice using aluminum plates and a piece of cloth. TEXT IN ILLUSTRATION *a Wooden Block *b Piece of Cloth NOTE: Do not overtighten the vice, as the steering column assembly may become deformed. Support the steering column assembly with a wooden block or similar item to ensure that it does not fall. Using SST, turn the main shaft and measure the preload. SST: 09616-00011 Preload Torque: 0.91 to 1.45 N*m (10 to 14 kgf*cm, 8 to 12 in.*lbf) If the preload is not as specified, replace the steering column assembly with a new one.
2. INSPECT STEERING COLUMN ASSEMBLY Inspect the bushings. Check that the 2 bushings are securely installed to the steering column assembly. TEXT IN ILLUSTRATION *1 Bushing If the 2 bushings are installed improperly, replace the steering column assembly with a new one. Check the 2 bushings for deformation and damage. If the bushings are deformed or damaged, replace the steering column assembly with a new one. Inspect the capsules. Check that the 2 capsules are securely installed to the steering column assembly as shown in the illustration. Standard Dimension A B 2 mm (0.0787 in.) 17 mm (0.669 in.) TEXT IN ILLUSTRATION *1 Capsule If the capsules are not positioned as specified, replace the steering column assembly with a new one. Check the 2 capsules for deformation and damage. If either of the capsules is deformed, loose, missing or damaged, replace the steering column assembly with a new one.

INSTALLATION

Note. Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable.

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1. INSPECT STEERING COLUMN ASSEMBLY See step 2
2. INSTALL NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY Align the matchmarks on the No. 2 steering intermediate shaft assembly and steering column assembly to install the No. 2 steering intermediate shaft assembly. TEXT IN ILLUSTRATION *a Matchmark Install the bolt. Torque: 35 N*m (357 kgf*cm, 26 ft.*lbf)
3. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
4. INSTALL STEERING POST ASSEMBLY Install the steering post assembly with the bolt and 2 nuts. Bolt Torque: 36 N*m (367 kgf*cm, 27 ft.*lbf) Nut Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf) Engage the wire harness clamps to the steering post assembly. Engage the 2 wire harness clamps. Connect the connector to the power steering ECU assembly. Connect the connector to the power steering ECU assembly. TEXT IN ILLUSTRATION *1 Lock Lever *2 Lock of Lock Lever HINT: As shown in the illustration, return the lock lever to its original position to connect the connector and securely push in the lock of the lock lever.
5. CONNECT NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY Align the matchmarks on the No. 2 steering intermediate shaft assembly and steering intermediate shaft to connect the No. 2 steering intermediate shaft assembly to the steering intermediate shaft. TEXT IN ILLUSTRATION *a Matchmark Install the bolt. Torque: 35 N*m (357 kgf*cm, 26 ft.*lbf)
6. INSTALL COLUMN HOLE COVER SILENCER SHEET Install the column hole cover silencer sheet with the 2 clips. Install the floor carpet.
7. INSTALL NO. 1 AIR DUCT SUB-ASSEMBLY Engage the 2 claws to install the No. 1 air duct sub-assembly.
8. INSTALL STOP LIGHT SWITCH ASSEMBLY . Refer to «INSTALLATION - Step 1»(ref-568776-S01116048072013072300000)
9. INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY Refer to «INSTALLATION»(ref-568591-S16620490742013072300000)
10. INSTALL UPPER INSTRUMENT PANEL ASSEMBLY Refer to «INSTALLATION»(ref-568750-S35064691782013072300000)
11. INSTALL TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY NOTE: Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable. Using pliers, expand the clamp. While holding the clamp expanded, install the turn signal switch assembly with spiral cable sub-assembly to the steering column assembly and engage the claw. Return the clamp to its original position. Connect the connectors to the turn signal switch assembly with spiral cable sub-assembly.
12. INSTALL STEERING COLUMN COVER NOTE: If the steering column cover is installed in the incorrect order, it will not be possible to assemble the steering column cover. Engage the 2 claws to install the steering column cover (upper side). Engage the 4 clips and 2 guides to the steering column cover (upper side). Engage the 4 claws to install the steering column cover (lower side). Engage the 2 claws. HINT: Spread the claws and press the area around the claws to engage them. Install the 2 screws. Torque: 2.0 N*m (20 kgf*cm, 18 in.*lbf)
13. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
14. ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY . Refer to «INSTALLATION - Step 4»(ref-568591-S21096527522013072300000)
15. INSTALL STEERING WHEEL ASSEMBLY See step 10
16. CHECK STEERING WHEEL CENTER POINT
17. INSTALL HORN BUTTON ASSEMBLY Refer to «INSTALLATION»(ref-568591-S00888319212013072300000)
18. ROTATION ANGLE SENSOR VALUE INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION Refer to «CALIBRATION»(ref-568611-S31682021112013072300000)

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Note. Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable.

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1. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
2. REMOVE HORN BUTTON ASSEMBLY Refer to «REMOVAL»(ref-568591-S14241402392013072300000)
3. REMOVE STEERING WHEEL ASSEMBLY Remove the steering wheel assembly set nut. TEXT IN ILLUSTRATION *a Matchmark Put matchmarks on the steering wheel assembly and steering main shaft. Disconnect the connectors from the spiral cable and steering wheel assembly. Using SST, remove the steering wheel assembly. TEXT IN ILLUSTRATION *a Turn *b Hold SST: 09950-50013 09951-05010 09952-05010 09953-05020 09955-04071 NOTE: Apply a small amount of grease to the threads and tip of SST (09953-05020) before use.
4. REMOVE STEERING PAD SWITCH ASSEMBLY See step 2
5. REMOVE CRUISE CONTROL SWITCH . Refer to «REMOVAL - Step 2»(ref-568608-S07530460142013072300000)
6. REMOVE CRUISE CONTROL SWITCH WIRE Remove the cruise control switch wire.
7. REMOVE STEERING SHAKE DAMPER Remove the 2 screws and steering shake damper from the steering wheel sub-assembly.
8. REMOVE LOWER STEERING WHEEL BOSS COVER (w/o Steering Heater) Remove the 2 screws. Disengage the 4 claws to remove the lower steering wheel boss cover from the steering wheel sub-assembly.
9. REMOVE LOWER STEERING WHEEL BOSS COVER (w/ Steering Heater) Remove the 2 screws. Disengage the 4 claws to remove the lower steering wheel boss cover from the steering wheel sub-assembly. Disconnect the connector from the steering wheel heater control assembly.
10. REMOVE STEERING WHEEL HEATER CONTROL ASSEMBLY (w/ Steering Heater) See step 9

Note. Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable.

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1. INSTALL STEERING WHEEL HEATER CONTROL ASSEMBLY (w/ Steering Heater) See step 1
2. INSTALL LOWER STEERING WHEEL BOSS COVER (w/o Steering Heater) Engage the 4 claws to install the lower steering wheel boss cover to the steering wheel sub-assembly. Install the 2 screws. Torque: 1.7 N*m (17 kgf*cm, 15 in.*lbf)
3. INSTALL LOWER STEERING WHEEL BOSS COVER (w/ Steering Heater) Connect the connector to the steering wheel heater control assembly. As shown in the illustration, place the wire harness along the guides. Engage the 4 claws to install the lower steering wheel boss cover to the steering wheel sub-assembly. NOTE: Do not allow the steering heater wire harness to be caught between the lower steering wheel boss cover and the steering wheel sub-assembly. Install the 2 screws. Torque: 1.7 N*m (17 kgf*cm, 15 in.*lbf)
4. INSTALL STEERING SHAKE DAMPER Install the steering shake damper to the steering wheel sub-assembly with the 2 screws. Torque: 2.4 N*m (24 kgf*cm, 21 in.*lbf)
5. INSTALL CRUISE CONTROL SWITCH WIRE Install the cruise control switch wire.
6. INSTALL CRUISE CONTROL SWITCH . Refer to «INSTALLATION - Step 1»(ref-568608-S12200470492013072300000)
7. INSTALL STEERING PAD SWITCH ASSEMBLY See step 1
8. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
9. ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY . Refer to «INSTALLATION - Step 4»(ref-568591-S21096527522013072300000)
10. INSTALL STEERING WHEEL ASSEMBLY Install the steering wheel assembly aligning the matchmarks on the steering wheel assembly and steering main shaft. TEXT IN ILLUSTRATION *a Matchmark Install the steering wheel assembly set nut. Torque: 50 N*m (510 kgf*cm, 37 ft.*lbf) Connect the connectors to the spiral cable sub-assembly and steering wheel assembly.
11. CHECK STEERING WHEEL CENTER POINT
12. INSTALL HORN BUTTON ASSEMBLY Refer to «INSTALLATION»(ref-568591-S00888319212013072300000)

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1. REMOVE HORN BUTTON ASSEMBLY Refer to «REMOVAL»(ref-568591-S14241402392013072300000)
2. REMOVE STEERING PAD SWITCH ASSEMBLY Disconnect the steering pad switch connector from the spiral cable. TEXT IN ILLUSTRATION *1 Clamp *2 Guide Remove the clamp. Remove the wire harness from the guide. Remove the 2 screws. TEXT IN ILLUSTRATION *1 Pin *2 Guide Disengage the 2 claws, 2 pins and 2 guides to remove the steering pad switch assembly.

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1. INSPECT STEERING PAD SWITCH ASSEMBLY Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (HO) - Terminal-A Always Below 1 ohms 4 (DIST) - 7 (ECC) No switch pushed 95 to 105 kohms Distance control switch pushed Below 2.5 ohms 2 (+DP) - 3 (-DP) No switch pushed 95 to 105 kohms DISP switch pushed Below 2.5 ohms 11 (AU1) - 8 (EAU) No switch pushed 95 to 105 kohms Seek+ switch pushed Below 2.5 ohms Seek- switch pushed 313 to 345 ohms Volume+ switch pushed 950 to 1050 ohms Volume- switch pushed 2955 to 3265 ohms 10 (AU2) - 8 (EAU) No switch pushed 95 to 105 kohms MODE switch pushed Below 2.5 ohms Voice switch pushed 2955 to 3265 ohms On hook switch pushed 313 to 345 ohms Off hook switch pushed 950 to 1050 ohms HINT: If the result is not as specified, replace the steering pad switch assembly. TEXT IN ILLUSTRATION *A w/ Telephone Microphone Assembly *B w/ Dynamic Radar Cruise Control System *a Component without harness connected (Steering Pad Switch Assembly) *b MODE *c Volume+ *d Volume- *e Seek+ *f Seek- *g DISP *h Voice *i Off Hook *j On Hook *k Distance Control *l Terminal-A Check the illumination Disconnect the steering pad switch assembly connector. Check that the steering pad switch assembly illuminates according to the table below. OK Connection Specified Condition Auxiliary battery positive (+) --> 5 (IL+2) Auxiliary battery negative (-) --> 8 (EAU) Switches of steering pad switch LH side illuminates Auxiliary battery positive (+) --> 5 (IL+2) Auxiliary battery negative (-) --> 3 (-DP) Switches of steering pad switch RH side illuminates HINT: If the result is not as specified, replace the steering pad switch assembly. TEXT IN ILLUSTRATION *a Component without harness connected (Steering Pad Switch Assembly)

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1. INSTALL STEERING PAD SWITCH ASSEMBLY Engage the 2 claws, 2 pins and 2 guides to install the steering pad switch assembly. Install the 2 screws. Torque: 2.4 N*m (24 kgf*cm, 21 in.*lbf) Install the clamp. TEXT IN ILLUSTRATION *1 Clamp *2 Guide Pass the wire harness through the guide. Connect the steering pad switch connector to the spiral cable. Pass the wire harness over the 2 guides.
2. INSTALL HORN BUTTON ASSEMBLY Refer to «INSTALLATION»(ref-568591-S00888319212013072300000)

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Note. Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable.

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1. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
2. REMOVE HORN BUTTON ASSEMBLY Refer to «REMOVAL»(ref-568591-S14241402392013072300000)
3. REMOVE STEERING WHEEL ASSEMBLY See step 3
4. REMOVE STEERING PAD SWITCH ASSEMBLY See step 2
5. REMOVE CRUISE CONTROL SWITCH . Refer to «REMOVAL - Step 2»(ref-568608-S07530460142013072300000)
6. REMOVE CRUISE CONTROL SWITCH WIRE See step 6
7. REMOVE STEERING SHAKE DAMPER See step 7
8. REMOVE LOWER STEERING WHEEL BOSS COVER See step 9
9. REMOVE STEERING WHEEL HEATER CONTROL ASSEMBLY Disengage the clamp. Remove the 2 screws and steering wheel heater control assembly from the lower steering wheel boss cover.

Note. Do not replace the spiral cable with the battery connected and the power switch on (IG). Do not rotate the spiral cable without the steering wheel with the battery connected and the power switch on (IG). Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor. Do not remove the steering sensor from the spiral cable.

1. INSTALL STEERING WHEEL HEATER CONTROL ASSEMBLY Install the steering wheel heater control assembly to the lower steering wheel boss cover with the 2 screws. Torque: 0.8 N*m (9 kgf*cm, 7 in.*lbf) Engage the clamp.
2. INSTALL LOWER STEERING WHEEL BOSS COVER See step 3
3. INSTALL STEERING SHAKE DAMPER See step 4
4. INSTALL CRUISE CONTROL SWITCH WIRE See step 5
5. INSTALL CRUISE CONTROL SWITCH . Refer to «INSTALLATION - Step 1»(ref-568608-S12200470492013072300000)
6. INSTALL STEERING PAD SWITCH ASSEMBLY See step 1
7. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
8. ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY . Refer to «INSTALLATION - Step 4»(ref-568591-S21096527522013072300000)
9. INSTALL STEERING WHEEL ASSEMBLY See step 10
10. CHECK STEERING WHEEL CENTER POINT
11. INSTALL HORN BUTTON ASSEMBLY Refer to «INSTALLATION»(ref-568591-S00888319212013072300000)

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1. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP LH . Refer to «REMOVAL - Step 1»(ref-568772-S15988574032013072300000)
2. REMOVE INSTRUMENT SIDE PANEL LH . Refer to «REMOVAL - Step 11»(ref-568750-S05929784242013072300000)
3. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY . Refer to «REMOVAL - Step 12»(ref-568750-S05929784242013072300000)
4. REMOVE STEERING HEATER SWITCH Disengage the 2 claws to remove the steering heater switch from the lower instrument panel finish panel sub-assembly.

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1. INSPECT STEERING HEATER SWITCH Disconnect the H42 steering heater switch connector. Measure the voltage according to the value(s) in the table below. HINT: As the circuit has a diode, perform the measurement in diode test mode, and do not mistake the polarity. Standard Voltage Tester Connection (Positive (+) tester probe - Negative (-) tester probe) Condition Specified Condition H42-3 (IG) - H42-7 (+) Always Below 1.25 V H42-6 (IN) - H42-7 (+) Steering heater switch is pushed Below 1.25 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H42-3 (IG) - H42-6 (IN) Steering heater switch is pushed Below 1 ohms H42-3 (IG) - H42-6 (IN) Steering heater switch is not pushed 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (Steering Heater Switch)

1. INSTALL STEERING HEATER SWITCH Engage the 2 claws to install the steering heater switch to the lower instrument panel finish panel sub-assembly.
2. INSTALL LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY . Refer to «INSTALLATION - Step 12»(ref-568750-S26843513152013072300000)
3. INSTALL INSTRUMENT SIDE PANEL LH . Refer to «INSTALLATION - Step 13»(ref-568750-S26843513152013072300000)
4. INSTALL FRONT DOOR OPENING TRIM WEATHERSTRIP LH . Refer to «INSTALLATION - Step 42»(ref-568750-S15440718192013072300000)