Ford 2003 Mustang Workshop Manual page 3826

SECTION 501-14A: Handles, Locks, Latches and Mechanisms
REMOVAL AND INSTALLATION
Ignition Lock Cylinder —Functional
Removal and Installation
1. Disconnect the battery ground cable. For additional information, refer to
2. Remove the ignition switch lock cylinder (11582).
1. Insert the ignition key and turn to the RUN position.
2. Using a 1/8-inch drift, press the ignition switch lock cylinder release pin through the
access hole while pulling out the ignition switch lock cylinder.
3. To install, reverse the removal procedure.
Verify ignition switch lock cylinder operation.
2003 Mustang Workshop Manual
Section 414-01 .