Trailer Brake Repair in batavia, iL - electric brakes fixed right

The most common causes are a blown fuse or breaker, a corroded or damaged 7-pin plug connection, a failed brake magnet on one or more wheels, or a bad ground in the wiring harness. In some cases, the brake controller itself has lost power or calibration. Our diagnostic process tests each component in sequence so we find the actual fault — not just replace parts until something works. See our trailer brake troubleshooting guide for a full breakdown of symptoms and causes.

We check for power at the controller's brake output wire, verify the gain setting is appropriate for your trailer's weight, confirm the controller is properly grounded to the tow vehicle, and test for fault codes if you have a proportional controller. We also bypass the controller to test the magnets directly — this tells us immediately whether the problem is in the controller or downstream in the trailer wiring.

Cost depends on what the diagnosis turns up. Simple fixes — a corroded connector, a blown fuse, a controller calibration — are inexpensive. Brake magnet replacement and drum service cost more but are still very competitive with dealer pricing. We give you a full written estimate before any work starts. Request a free estimate here.

Yes — gooseneck and dump trailers are among the most common brake jobs we do. We also repair brakes on utility trailers, enclosed trailers, and cargo trailers. Heavy-duty trailers put more stress on the brake system, so magnet wear and drum issues are more frequent. We're experienced with tandem and triple-axle configurations on both trailer types.

Most trailer brake repairs are completed same-day or next-day. Magnet replacement, wiring repairs, and controller service are typically 1–3 hour jobs. We'll give you a realistic timeline when you call, and we work to get your trailer back on the road as fast as possible.

Some things — adjusting controller gain, cleaning a corroded plug, replacing a blown fuse — are reasonable DIY tasks with basic tools. Others, like brake magnet replacement, drum resurfacing, or diagnosing an intermittent wiring fault, are better left to a professional who has the right equipment and experience. Read our guide on fixing electric trailer brakes: DIY vs. professional repair to figure out which camp your problem falls into.

Illinois law requires working brakes on trailers over 3,000 lbs gross vehicle weight. If your trailer is subject to inspection and the brakes are non-functional or out of adjustment, it won't pass. We can get your trailer's brakes into compliance and provide documentation of the repair.