Electrical Diagnostics in Morris County NJ — Find the Problem in Your Trailer's Electrical System Fast

If you cannot figure out why your lights or brakes are not working after trying the obvious fixes, it is time for a professional diagnostic. Multiple electrical failures happening at once usually point to a common ground problem or a wiring issue deeper in the system. Intermittent problems that come and go are the hardest to solve without proper test equipment. After an accident or impact, a full electrical check makes sure nothing was damaged that you cannot see from the outside. If your trailer has had multiple quick repairs over the years and things still are not working right, a full diagnostic often reveals underlying issues that were never properly fixed. Electric brakes not working? The issue might be in the controller, not the wiring. We also offer brake controller fault testing.

We use a systematic approach to test every electrical circuit on your trailer. We start at the connector and work our way back through the entire system. We test for voltage drop, which tells us if your connections are clean and tight. We check ground integrity at every ground point on the trailer. We test circuit continuity to find breaks in the wiring. We load test circuits to make sure they can handle the current draw of your lights and accessories. This methodical approach finds problems that visual inspections and quick checks miss. Many trailers we diagnose have multiple faults layered on top of each other from years of patchwork repairs. Once we find the fault, repair might involve a full wiring harness trace and repair to fix the root cause.

Diagnostic costs depend on the complexity of the issue and the number of circuits we need to test. A simple problem with a single circuit is quick to find and fix. A trailer with multiple interrelated electrical failures takes more time to diagnose properly. If the repair turns out to be a simple connection fix, the total cost stays low. If a full rewire is needed, we will explain exactly why and give you an upfront price. We never charge for work you did not approve. Fleet customers with 3 or more trailers receive a 10% discount on every service call.

We have over 30 years of experience tracking down trailer electrical faults. We carry professional diagnostic equipment that most mobile services do not have. This is a family owned business. We come to your location with everything we need to diagnose and repair your electrical system on the spot. We are open 7 days a week, 7AM to 7PM. We work on commercial fleet trailers and personal trailers of every size and type.