Semi-Truck Computer Diagnostic Service Near Charlotte
- Fault-code and live-data review to understand when the complaint occurs and which system requires testing
- Power, ground, wiring, connector, sensor, and network checks when the evidence points beyond software or a stored code
- A practical next-step plan for remote guidance, mobile testing, shop diagnosis, or approved repair
Semi-Truck Computer Diagnostic Testing That Finds the Actual Fault
Want to talk to a mechanic first? Meet our diesel mechanics in Matthews.
Read reviews from drivers we have worked with or meet our technicians.
Warning light on the road? Our mobile semi truck repair technicians can read fault codes on site within about 50 miles of our Matthews shop.
Our labor rate and listed prices are on the truck repair prices page.
How to Get Started With Us
Transparent Shop Pricing
| What to expect | Typical timing or rate | What is included |
|---|---|---|
| Standard in-shop labor | $120 per billed labor hour | Parts, shop supplies and taxes are added where they apply. Listed prices for diagnostics, mobile calls and common jobs are on the truck repair prices page. |
| Typical repair turnaround | Same day for most repairs | If a job needs parts ordered in, or your truck arrives near closing, we finish it first thing the next business morning. If a part will take longer, we'll tell you upfront. |
| Estimate and approval | Before repairs begin | The team explains the diagnosis, recommended repair, estimate, and expected completion time before work is approved. |
Photos
Diagnostic laptop plugged into a semi truck to read fault codes.
Front end opened up in the shop.
Semi-Truck Computer Diagnostic FAQ
Diagnostics are appropriate for warning lights, engine or aftertreatment derates, no-start or hard-start conditions, intermittent shutdowns, poor performance, repeated fault codes, transmission or ABS warnings, communication faults, and electrical problems that have not been isolated.
No. A fault code reports what a control module detected and points technicians toward a system or test path. The actual cause may be a component, wiring, connector, power or ground problem, communication fault, related mechanical condition, or another input affecting that system.
Remote support can review available fault information and operating details, clarify when the symptom occurs, and help determine the safest next step. It cannot physically inspect wiring, take measurements at the truck, replace components, or confirm every failure without hands-on testing.
Mobile diagnostics are available Monday through Friday from 9:00 AM to 7:00 PM, and Saturday from 9:00 AM to 1:00 PM within 50 miles, subject to technician availability and current shop workload. The mobile service-call charge is $350 plus $160 per labor hour. Quick calls like a jump start have no minimum, and repairs such as a tire or alternator replacement have a 2-hour labor minimum.
There is no reliable universal time. A straightforward active fault may be isolated quickly, while intermittent electrical, network, aftertreatment, or multi-system complaints can require additional testing. Truck Pit Stop explains the diagnostic path and expected timing based on the actual symptoms.
Shop diagnosis is appropriate when the truck needs controlled testing, physical access to wiring or components, specialized measurements, repair work, an extended road test, or further inspection after a partial roadside diagnosis. Third-party towing or transport can be arranged when needed.