1. Bulbs: This is the simplest and most common cause. Check all the bulbs on the trailer itself – tail lights, brake lights, turn signals – to ensure they are not burned out.
2. Connections:
* Trailer Connector: Inspect the connector on the back of your Escape. Look for corrosion, broken wires, or loose connections. Clean any corrosion with a wire brush and electrical contact cleaner. Make sure the connector is securely plugged into the trailer.
* Trailer Wiring: Check all the wiring on the trailer itself for breaks, chafing, or loose connections. Pay close attention to the area where the wiring enters the trailer.
* Vehicle Wiring: This is more difficult to access, but if the trailer connector seems fine, you might need to check the wiring harness leading to the connector on your Escape. This often requires removing interior panels.
3. Fuses: Check the owner's manual for the location and amperage of the fuses related to the trailer lights. Replace any blown fuses.
4. Trailer Wiring Harness: If your Escape didn't come with a factory-installed tow package, the wiring harness might be aftermarket. Inspect the entire harness for damage or poor connections. A faulty harness is a common cause of issues.
5. Tow Package Module (if applicable): If your Escape has a factory tow package, there might be a control module involved. A malfunctioning module could prevent the lights from working. This is more likely to be a problem if *only* your trailer lights are failing and not other electrical systems.
6. Ground Connection: A poor ground connection can cause intermittent or complete failure of the trailer lights. Check the ground wire connection on both the vehicle and the trailer.
7. Testing with a Multimeter: If you have a multimeter, you can test the voltage at the trailer connector to see if power is reaching the connector. This will help isolate whether the problem is in the vehicle's wiring or the trailer itself.
Troubleshooting Steps:
1. Start with the easiest: Check the trailer bulbs and connector first.
2. Visual inspection: Carefully examine all wiring for damage.
3. Check fuses: Replace any blown fuses.
4. Test the connector: Use a multimeter (if you have one) to test for voltage at the connector.
When to Seek Professional Help:
If you're not comfortable working with car wiring or you've checked everything and still can't find the problem, it's best to take your Escape to a mechanic or auto electrician. They have the tools and expertise to diagnose and fix more complex electrical issues.
