Electrical system diagnostics and repair
Electrical faults, wiring harness repairs, control modules and sensor diagnostics.
Electrical faults are where machines waste the most shop time, because an intermittent fault that will not repeat is a fault nobody can point at. Chafed insulation and a corroded pin look like nothing until the machine moves.
The work is tracing the circuit rather than replacing what the code names. A harness repaired at the actual break stays fixed; a control module replaced because a code mentioned it usually does not.
What the work includes
- Wiring harness diagnosis and repair
- Control module and sensor faults
- Charging and starting system testing
- Intermittent and vibration-dependent fault tracing
- Corrosion and connector repair
Common questions
- My fault only happens sometimes — can you find it?
- Usually, but intermittent faults take longer by their nature. Anything you can tell us about when it happens — cold, hot, rough ground, particular movements — narrows it considerably.
- The code names a module. Does it need replacing?
- Frequently not. A module reporting a fault is often reporting what it sees on a circuit, and the fault is in the wiring or a connector. Testing the circuit first is much cheaper than a module.
- Do you repair harnesses or only replace them?
- Repair where a repair will hold, which is most of the time. A full harness is expensive and often on back order, and a properly repaired section is not a compromise.
Tell us about the unit
What it is, what it’s doing, and whether it’s drivable.