Here's a general guide. Specifics might vary slightly depending on the exact trim level of your 4Runner.
Tools You'll Likely Need:
* Phillips head screwdriver (possibly a flathead as well, depending on the fasteners)
* New taillight assembly
* Socket wrench (possibly, depending on the bulb type and access)
* Optional: Panel pry tool (to avoid scratching the plastic)
Steps:
1. Access the Taillight: Open the rear tailgate or liftgate. You'll need to access the inside of the rear quarter panel where the taillight is located.
2. Remove the Interior Trim Panel (If Necessary): There's usually a panel covering access to the taillight bolts. This panel is generally held on by clips and screws. Gently pry it off using a panel pry tool (or a flathead screwdriver carefully wrapped in tape to protect the plastic) to avoid damage. Be careful, as these panels can be fragile.
3. Remove the Taillight Assembly: Locate the screws or bolts holding the taillight assembly in place. These are usually on the inside of the tailgate/liftgate. Unscrew them.
4. Disconnect the Electrical Connector: Carefully disconnect the electrical connector from the back of the old taillight assembly. There's usually a clip or latch that you'll need to depress to release the connector.
5. Remove the Old Taillight: Once the screws are removed and the electrical connector is disconnected, gently pull the old taillight assembly outward. It may be a tight fit.
6. Install the New Taillight: Align the new taillight assembly with the mounting points and push it firmly into place.
7. Reconnect the Electrical Connector: Connect the electrical connector to the new taillight assembly, ensuring it clicks securely into place.
8. Secure the Taillight: Reinstall the screws or bolts that secure the taillight assembly.
9. Replace the Interior Trim Panel (If Removed): Reattach the interior trim panel, ensuring all clips are properly seated.
10. Test the Taillight: Reconnect the negative battery terminal. Test the new taillight to ensure all functions (brake lights, turn signals, reverse lights, running lights) are working correctly.
Important Considerations:
* Bulb Replacement vs. Assembly Replacement: If only a bulb is burnt out, you might only need to replace the individual bulb within the assembly, rather than the entire assembly. Access to the bulbs varies depending on the specific 4Runner model. Consult your owner's manual or a repair guide specific to your year and model.
* Year and Trim Level Variations: The exact procedure might differ slightly based on your specific 1999 Toyota 4Runner model (SR5, Limited, etc.). Minor variations in trim pieces or fastener types are possible.
* Repair Manuals: For detailed, model-specific instructions, consult a repair manual specific to your 1999 Toyota 4Runner. These manuals usually provide diagrams and step-by-step instructions. You can find these online or at auto parts stores.
If you're uncomfortable performing this repair yourself, it's always best to take your vehicle to a qualified mechanic.
