Remove the cable that is connected to the negative terminal among the cables connected to the terminals of the battery. Take off the screw cap from the steering column and take out the wiring connector of the ignition switch. Unscrew the ignition switch and extract it from the lock cylinder housing, but note that there is a tab that needs to be pushed to sever the electrical connection before pulling the ignition switch back out and unscrewing the retaining screws. But prior to installing the new switch, position the hub of the switch at the blade on the ignition lock cylinder. The rest of the installation process is done in the exact opposite order of the removal process, and then connect the battery before the required re-learn procedures are done. Illustration 27 calls for the withdrawal of the ignition switch, the separation of the shift-interlock cable from the ignition lock cylinder housing, and the withdrawal of the shear-head bolts to disengage the ignition lock cylinder from the steering column, although use may have to be made of a drill and screw-extractor. Removal and installation process involves the removal of the nuts from the shear-head bolts and covered with washers before being tightened to the brake-off point where the heads of the bolts bust off and reinstalling the battery, and final re-learn process. The first step is to take out the heating and air conditioning control assembly. Now with the help of a plastic trim tool one must retract the clips on the side panel and later on take it off the instrument panel. Pull out the connector of the electrical terminals starting with the push-button ignition switch in addition to prying the clips on the terminal on the NATS antenna amp so as to demount the switch from the ring of the NATS antenna amp. To get the NATS antenna amp ring off the panel, unlock the two locking tabs and pull the ring off the face of the panel. Installation is the process of putting back something removed in the opposite manner as it was done in removal.