1. Fully close the rear door glass.
2. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.5].)
3. Remove the rear door trim. (See REAR DOOR TRIM REMOVAL/INSTALLATION.)
4. Remove the rear door speaker. (See REAR DOOR SPEAKER REMOVAL/INSTALLATION.)
5. Remove bolt.
6. Remove nuts.
7. Pull out the rear door checker from the rear speaker installation hole.
8. Install in the reverse order of removal.