Troubleshooting Control Circuits Because the wiring and the inputs and outputs (I/Os) are the most vulnerable elements in a system, be sure to locate and identify these elements in the problem circuit ...

The handheld device uses a dynamic load-simulation program and a truck’s towing circuits to test aftermarket and integrated trailer brake controllers. It includes a 25-foot cable that plugs into ...

Troubleshooting Motor Control Circuits — Part 1 Isolating problems in the main power circuit Feb. 16, 2015 5 min read ...

Is the brake light circuit still a "simple" circuit (fuse, switch, lights) or does a computer control the lights? A: The brake light circuit is still a simple mechanical switch on the brake pedal.