Q: Lost trailer brakes & lighting due to improper installation

asked by on

The trailer wiring plug receiver on my truck was installed upside down. When I was driving on rough roads, this caused me to lose trailer brakes and the lighting on the trailer. Previously the door opened up, but now opens down. The 7 wire RV plug won't stay plugged in all the way because it is too heavy. This is very dangerous when travelling downhill with a loaded trailer. I saw the dealer and he said yes to my question if they have had other complaints like mine. However, the mechanics couldn't duplicate the problem and they didn't have any service bulletins. The ‘Service Trailer Wiring’ message displays any time I hit a bump or turn the truck. Can you tell me what to do to repair and solve these problems?

It is possible an independent mechanic may be able to devise a fix for the wiring issue that the dealer would be restricted from doing as it may require modifications. One thing to consider though, modifications to the truck may void existing warranties.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Lost trailer brakes & lighting due to improper installation

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 took longer to start than usual

Hi there, thanks for writing in. Although your car is nearly brand new, it certainly isn't impossible for it to have a failed battery. If it cranked over slowly as it was starting, it could be an indication that the...

Q: Dashboard backlight randomly doesn't work

The dash lights on your instrument cluster is controlled by the dimmer control module or also called a dash light brightness controller on the left side of the steering column. While watching your radio lights, turn your headlights on and...

Q: 4x4 won't engage and push button switch lights up intermittently.

Hi there. Check the electrical wiring to the transfer case shifter motor and see if there is a voltage present when pushing on the 4WD button. If there is a voltage present, then I recommend replacing the servo motor on...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...