Skip the auto shop - Our mechanics make house calls

Q: No trailer running lights

asked by on

I am hooking up my 40 ft goodneck trailer to my Dodge, and I’m having a problem. My trailer running lights are not coming on. But I know my trailer is getting power because my signal, break lights and flashers are working on my trailer. I am wondering what the problem could be. Do you have an ideas or answers? Thanks.

Hello. The trailer could be wired wrong. It also could be a blown fuse or relay. There is a running light fuse under the hood and a relay behind the rear bumper. Either one being blown will cause your issue. I suggest that you start by checking those three things. The trailer wiring, fuse under the hood, and the relay behind the bumper. If you need some assistance with these checks, consider enlisting a certified mechanic who can diagnose the issue with your lights and make the necessary repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car is new nissan versa warm up car idles down then shoots back up like something is kicking on then idles down then revs back up

Hello. Depending on the road you are driving on and if here is extra weight in the vehicle then this can occur. This is usually compensation for the lack of power that the engine puts out. With that being said...

Q: Rear tires on passenger side locked up

I would not drive the vehicle until it is looked at, as it is possible for the fault to cause an unsafe driving condition. When a brake locks up without any reason, it is most likely caused by a failure...

Q: Automatic door not opening - 2013 Infiniti FX37

Hello. If your rear power liftgate is no longer functioning, the first thing I would do is check to make sure that the liftgate power button is activated. The button is located on the instrument panel, and displays a picture...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...