Column Lock & Ignition Switch: Removal

Disconnect battery ground cable. Remove steering wheel. Refer to STEERING WHEEL in this article.
NOTE: Steering wheel removal is optional if only ignition switch portion is being removed. Removal of wheel makes access to ignition switch easier.
Remove screws retaining upper and lower column covers and disconnect any electrical couplings not detached during steering wheel removal.
Remove turn signal switch assembly (only if column lock assembly is being removed). Remove mainshaft bearing retainer and snap ring (if necessary).

Fig 1: Disengaging Key Cylinder From Position on Mainshaft
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Insert key and turn ignition to "ACC" position. Using pointed tool to press down stop pin on side of cylinder, free mechanism and pull cylinder from housing. See Fig 1.
On Celica and Supra models, remove snap ring from mainshaft. On all other models, lock is part of upper column bearing assembly. Remove bolts retaining upper bearing assembly. Slide lock assembly off column.