Truck Electrical and Computer Diagnostics
Electrical diagnostics covers no-start complaints, wiring faults, charging problems, computer diagnostics, and trailer light or ABS electrical faults. The Roberts shop traces the circuit instead of swapping parts until the light goes out.
Serving commercial drivers since 1962. Call (715) 749-4490 or request a quote. Mobile emergency dispatch is available 24/7. Monday–Friday, 8:00 AM–5:00 PM. Saturday and Sunday: closed.
What this service includes
- Semi truck electrical repair
- Diesel electrical diagnostics
- Computer and check-engine diagnostics
- Truck wiring repair
- Trailer lighting and ABS electrical repair
How service works
01
List the electrical symptom
Include warning lights, dead batteries, lighting faults, or an intermittent no-start.
02
Test the circuit
Technicians check power, ground, and the related control module before replacing components.
03
Repair the fault
Wiring, connectors, or the failed component are repaired and the original symptom is rechecked.
Related services
Questions
Can you diagnose a truck that will not start?
Yes, when the no-start is electrical or control-system related. Share whether it clicks, cranks, or has no dash power.
Do you repair trailer lights?
Yes. Trailer light and wiring repairs are available in the shop and, for many faults, from the mobile truck.
Is computer diagnostics the same as an engine rebuild?
No. Diagnostics identify the fault. Engine repair is quoted only if the test points to an engine problem.
