Toyota Corolla Repair Manual: Overhaul
1. Precaution
2. Disconnect battery negative terminal
3. Inspect place front wheels facing straight ahead
4. Remove horn button assy

Notice
:
if the airbag connector is disconnected with the ignition
switch being at on, dtcs will be recorded.
- using a torx socket wrench, loosen the 2 torx screws until
the groove along the screw circumference catches on the
screw case.

- Pull out the horn button assy from the steering wheel.
- using a screwdriver, release the lock part of each airbag
connector and disconnect the 2 airbag connectors.
Notice
:
when removing the horn button assy, take care not to pull
the airbag wire harness.

Caution
:
- when storing the horn button assy, keep the upper
surface of the pad facing upward.
- Never disassemble the horn button assy.
5. Remove steering wheel assy

- Disconnect the connector.
- remove the steering wheel assy set nut.
- place matchmarks on the steering wheel assy and main
shaft assy.
- using sst, remove the steering wheel assy.
Sst 09950–50013 (09951–05010, 09952–05010,
09953–05020, 09954–05021)
6. Remove steering column cover
- remove the 3 screws and steering column cover.
7. Disconnect floor shift parking lock cable assy (a/t transaxle)

- With the key in acc, push the claw and pull out the floor
shift parking lock cable.
8. Remove spiral cable sub–assy
9. Remove headlamp dimmer switch assy
- disconnect the connector and remove the headlamp dimmer switch
assy.
10. Remove windshield wiper switch assy
- disconnect the connector and remove the windshield wiper switch
assy.
11. Remove column hole cover silencer sheet
12. Disconnect steering intermediate shaft

- Place matchmarks on the sliding yoke and steering intermediate
shaft.
- loosen the bolt a and remove the bolt b, then disconnect
the steering intermediate shaft.
13. Remove steering column assy

- Disconnect the connectors and wire harness clamps from
the steering column assy.
- remove the 3 bolts and steering column assy.
14. Remove steering column upper w/switch bracket assy

- Using a centering punch, mark the center of the 2 tapered–
head bolts.
- using a 3 – 4 mm (0.12 – 0.16 In.) Drill, drill into the 2 bolts.
- using a screw extractor, remove the 2 bolts and steering
column upper w/switch bracket assy.
15. Remove steering column clamp upper
16. Remove ignition switch lock cylinder assy

- Place the ignition switch lock cylinder assy at the acc
position.
- push down the stop pin with a screwdriver, and pull out
the cylinder assy.
17. Remove un–lock warning switch assy

- Disconnect the un–lock warning switch assy connector
from the ignition or starter switch assy.
- remove the un–lock warning switch assy.
18. Remove ignition or starter switch assy
- remove the 2 screws and ignition or starter switch assy from the
steering column bracket assy.
19. Install ignition or starter switch assy
- install the ignition or starter switch assy to the steering column
bracket assy with the 2 screws.
20. Install un–lock warning switch assy

- Install the un–lock warning switch assy.
- connect the un–lock warning switch assy connector to
the ignition or starter switch assy.
21. Install ignition switch lock cylinder assy
- make sure that the ignition switch lock cylinder assy is at the
acc position.
- install the ignition switch lock cylinder assy.
22. Inspect steering lock operation
- check that the steering lock mechanism is activated when removing
the key.
- check that the steering lock mechanism is deactivated when
inserting the key and turning it to acc
position.
23. Install steering column upper w/switch bracket assy

- Temporarily install the steering column upper w/switch
bracket assy and steering column upper clamp with 2 new
tapered–head bolts.
- tighten the 2 tapered–head bolts until the bolt heads
break off.
24. Install steering column assy

- Install the steering column assy with the 3 bolts.
Torque: 21 n·m (210 kgf·cm, 15 ft·lbf)
- connect the connectors and wire harness clamps.
25. Connect steering intermediate shaft

- Align the matchmarks on the sliding yoke and steering intermediate
shaft.
- install the bolt b and torque the bolt a.
Torque: 35 n·m (360 kgf·cm, 26 ft·lbf)
26. Install column hole cover silencer sheet
27. Install windshield wiper switch assy
- install the windshield wiper switch assy and connect the
connector.
28. Install headlamp dimmer switch assy
- install the headlamp dimmer switch assy and connect the connector.
29. Place front wheels facing straight ahead
30. Install spiral cable sub–assy
31. Connect floor shift parking lock cable assy (a/t transaxle)

- With the key in acc, push into the floor shift parking lock
cable and install it.
32. Connect check key interlock operation
33. Install cover set steering column
- install the steering column cover with the 3 screws.
34. Center spiral cable

- Check that the ignition switch is at off.
- check that the battery negative terminal is disconnected.
Notice
:
do not start the operation for 90 seconds after removing
the terminal.
- turn the cable counterclockwise by hand until it becomes
harder to turn.

- Then rotate the cable clockwise about 2.5 Turns to align
the marks.
Hint
:
the cable will rotate about 2.5 Turns to either right or left of the
center.
35. Install steering wheel assy
- align the matchmark with the one on the steering wheel assy and
steering main shaft assy.
- install the steering wheel assy with the set nut.
Torque: 50 n·m (510 kgf·cm, 37 ft·lbf)
- connect the connector.
36. Inspect horn button assy
37. Install horn button assy
Notice
:

- Connect the 2 airbag connectors.
- install the horn button assy after confirming that the circumference
groove of the torx screws is caught on the
screw case.
- using a torx socket wrench, torque the 2 torx screws.
Torque: 8.8 N·m (90 kgf·cm, 78 in.Vlbf)
38. Steering wheel center point
39. Inspect srs warning light
Other materials:
Adjustment
1. Inspect park/neutral position switch assy
apply the parking brake and turn the ignition switch on.
depress the brake pedal and check that the engine starts only when
the shift lever is set in n or p position
and it does not start in the other position.
check that th ...
Unlocking and locking the doors from the inside
◆ Door lock switches
1 Locks all the doors
2 Unlocks all the doors
◆ Inside lock buttons
1 Locks the door
2 Unlocks the door
The front doors can be opened by pulling the inside handle even if the lock buttons
are in the lock position.
...
Other functions
■ Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (indicator off) and recirculated air
mode (indicator on) each time is pressed.
■ Defogging the windshield
Defoggers are used to defog the windshield and front side windows ...
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