1. Remove the Tail Light Assemblies: Open the trunk and locate the screws or bolts that secure the tail light assembly to the body of the car. Remove these fasteners and carefully remove the tail light assemblies.
2. Inspect the Wiring: Look closely at the wiring harness connected to the tail lights. Check for any signs of damage, such as broken or frayed wires, or loose connections.
3. Test for Continuity: Use a multimeter to test for continuity between the positive terminal of the battery and the ground terminal of the tail light assembly. If the multimeter indicates an open circuit, there may be a broken wire in the harness.
4. Replace Damaged Wires: If you find any damaged wires, replace them with wires of the same size and color. Make sure to solder the connections and properly insulate them with electrical tape.
5. Inspect the Ground: Check the ground connection between the tail light assembly and the chassis. Make sure the connection is clean and tight. If necessary, clean the contact surfaces and reattach the ground wire securely.
6. Test the Circuit: Once you have replaced the damaged wires and checked the ground, reconnect the tail light assemblies and turn on the headlights. If the fuse no longer blows, you have successfully fixed the short.
If you do find damaged wiring, it is recommended that you replace it, not just try to repair it, to ensure a reliable connection and prevent future issues.
