For 1990-2009 cars

### Disassembly Procedure

1. Carefully remove cap from lock cylinder using a thin bladed screwdriver.

Important: When shutter is removed, the shutter springs may fall out.

2. Remove shutter and shutter springs.
3. Insert key into cylinder, turn it a quarter turn clockwise and remove cylinder from housing.
4. If necessary, remove pawl from slot in housing.

Important: When the tumblers are removed from the lock cylinder tumbler, springs may fall out.

5. Push tumblers out of lock cylinder using a thin bladed screwdriver.
6. If necessary, remove sidebar assembly by pushing it inward while tapping the cylinder, causing it to fall out.

### Assembly Procedure

1. Select the correct tumblers for the desired code by the number stamped on the tumbler.

Important: Make sure sidebar and tumbler springs are in place before installing tumblers.

2. Install tumblers by applying downward pressure until they lock into position.

Important: When key is inserted into properly coded lock cylinder, all tumblers except the retainer tumbler will be flush with the lock cylinder.

3. Install pawl into slot in housing.
4. Insert key into cylinder, insert cylinder into housing and rotate quarter turn counterclockwise.
5. Install shutter spring and shutter.
6. Install cap to lock cylinder.