1. The Simple Stuff (Check First):
* Emergency Brake: Is your emergency brake fully released? Sometimes, a partially engaged brake can keep the lights on.
* Door Switch: Make sure all doors and the trunk are securely closed. Faulty door switches are a common culprit. Try jiggling them gently while observing the lights.
* Reverse Light Switch: Is it possible the reverse light switch is sticking? (Though less likely to stay on continuously.)
2. Electrical Issues:
* Wiring Harness: The wiring harness in a classic car like a '69 Camaro is prone to age and damage. Look for any frayed, melted, or corroded wires, particularly around the taillights, brake light switch, and fuse box. Pay close attention to the ground wires. A poor ground can cause all sorts of electrical gremlins.
* Tail Light Switch: The switch on the steering column that activates the tail lights may be faulty and stuck in the "on" position.
* Fuse(s): Check the fuses related to the taillights. A blown fuse *could* be the problem (if a short-circuit is drawing too much current), but a *constant* draw suggests something else is wrong – a blown fuse is usually a symptom, not the root cause.
* Short Circuit: A short circuit somewhere in the wiring could be the most likely culprit. This is more involved to trace and may require help from an auto electrician.
3. More Advanced Troubleshooting:
* Voltage Drop Test: With a multimeter, check the voltage at the taillight sockets while the car is off. If you're still getting voltage, you have a short somewhere.
* Ground Check: Using a multimeter, check the ground connections at the taillight housings and the chassis. Poor grounds are a very common cause of electrical problems in older cars.
* Relay: While less common in a '69 Camaro's tail light circuit, a relay could be stuck closed.
Where to Begin:
1. Start with the simple stuff (Brake, Doors, Trunk). This is the easiest and cheapest first step.
2. Visual Inspection: Carefully inspect all wiring related to the taillights. Look for obvious damage.
3. Fuse Check: Check the relevant fuses.
4. Seek Professional Help: If you can't find the problem after checking these things, take it to a mechanic specializing in classic cars or an auto electrician. They have the tools and experience to diagnose more complex electrical issues. Trying to troubleshoot this kind of problem without the proper knowledge and equipment could lead to further damage.
Remember to disconnect the negative battery terminal before doing any significant electrical work to avoid shorts or shocks. Safety first!
