Trailer Brake Repair in Duarte, CA

In-cab brake controller diagnostics, wiring repair, and calibration for towing trailers.

Brake Controller Not Syncing With Your Trailer?

Your in-cab brake controller is the link between your foot on the pedal and the brakes on your trailer, and when that link breaks—from a bad ground, a damaged hitch connector, or a controller that’s simply out of calibration—the trailer can brake late, brake unevenly, or not engage at all. Duarte residents towing work trailers and recreational trailers alike run into this more often than they’d expect, usually after a connector gets bumped or corrodes.

At A&R 1 Stop Shop in Irwindale, we test the controller output at the plug, trace wiring faults back to the source, and calibrate gain to match your specific trailer so the tow vehicle and trailer brake together, every time.

What We Service

  • Electric brake magnets and drums
  • Hydraulic and surge brake actuators
  • Brake controllers and wiring
  • Bearings, seals, and hub service
  • Brake line and fitting repair
  • Full brake system inspection

Signs Your Brake Controller Needs Attention

  • Error message or blinking light on the controller display
  • Trailer brakes don’t engage with the tow vehicle’s brakes
  • Braking feels uneven or inconsistent trip to trip
  • Intermittent connection at the hitch plug
  • Burnt smell or heat at the connector
  • Trailer brake fuse blows repeatedly

Get Your Controller and Trailer Brakes Working Together

Duarte is a quick trip from our Irwindale shop along the 210 Freeway.