Here's a general overview of the steps involved. This is NOT a substitute for a proper repair manual. Variations exist between model years and specific trim levels.
Tools You'll Likely Need:
* Security Bit Set: This is crucial. Saturn often uses tamper-resistant screws.
* Screwdrivers (Phillips and flathead): Various sizes.
* Pliers: Needle-nose pliers may be helpful.
* New Ignition Lock Cylinder: Make sure you get the correct replacement for your specific vehicle. You will likely need your VIN (Vehicle Identification Number) to ensure you get the right part.
* Ignition Switch Removal Tool (Possibly): Some vehicles require a special tool to depress the retaining pin.
* Wiring Diagram (Highly Recommended): This will help you reconnect the wiring harness correctly.
* Pen and Paper: To note the wiring connections before disconnecting them.
General Steps (Consult your repair manual for precise instructions):
1. Steering Wheel Removal (Possibly): In some cases, the steering wheel might need to be removed to access the ignition cylinder. This involves disconnecting the airbag (extremely important safety precaution – disconnect the battery negative terminal first and wait a few minutes before disconnecting the airbag!), and carefully removing the steering wheel retaining nut and wheel.
2. Column Shroud Removal: Access the ignition lock cylinder by carefully removing the trim around the steering column. This often involves removing screws and possibly clips.
3. Wiring Harness Disconnection: Carefully disconnect the wiring harness from the ignition lock cylinder. Use a pen and paper to meticulously document the wiring connections before disconnecting them. Take pictures if you’re comfortable.
4. Ignition Lock Cylinder Removal: Locate the retaining mechanism holding the cylinder in place. This may involve removing screws or using a special tool to depress a retaining pin. Once the retaining mechanism is released, carefully remove the ignition lock cylinder.
5. Installation of the New Cylinder: Install the new ignition lock cylinder, ensuring it's properly seated. Re-attach the retaining mechanism.
6. Wiring Harness Reconnection: Reconnect the wiring harness, carefully matching the wires to your notes or photos.
7. Reassembly: Reassemble the column shroud, steering wheel (if removed), and other trim pieces.
8. Testing: Test the new ignition lock cylinder to ensure it functions correctly.
Important Considerations:
* Airbag Safety: If you have to remove the steering wheel, work with extreme caution. Failure to properly disconnect the battery and handle the airbag can result in serious injury.
* Key Matching: The new ignition lock cylinder will likely require re-keying or a new set of keys. Make sure you know your options for getting new keys.
* Professional Help: If you're uncomfortable performing this repair, take your vehicle to a qualified mechanic. Improper installation can lead to significant problems.
Remember, this is a simplified overview. Always consult a repair manual specific to your 2000 Saturn LS200 before attempting this repair. Improper procedures can cause damage and create safety hazards.
