Electrical issues can bring your truck to a standstill without warning. At R & N Towing Truck and Trailer Repair, we specialize in heavy-duty diagnostics and electrical repairs to keep your truck’s systems running right.
Semi Truck Electrical Repair in Darlington, SC
We use professional diagnostic tools to scan your truck’s engine control module (ECM), transmission control unit, and onboard systems. Whether it’s a faulty starter, a drained battery, or a blown fuse hidden in your harness, we’ll pinpoint the problem fast and make the right fix. Our diagnostics cover everything from emissions systems to performance tuning issues.
Common electrical and diagnostic services include:
- Full-system diagnostics and ECM fault code scans
- Alternator and starter motor replacement
- Battery load testing and replacement
- Lighting and wiring system repair
- Sensor and harness troubleshooting
We also work on emission control systems, including DEF and aftertreatment sensors, and can address truck diagnostics for both mechanical and electronic issues.
What Makes Us Different
Electrical problems in heavy-duty trucks can be complex. Our technicians understand how modern diesel systems operate and have the experience to handle everything from a bad ground to advanced ECU programming. We also provide electrical repairs on RVs, buses, and trailers.
While we don’t offer mobile service, our towing fleet is available to bring in vehicles that are unable to start or are stuck on the roadside. Once in our shop, we conduct a full assessment and get to work restoring your truck’s systems quickly.
- Experienced in diagnostics for all makes and models
- Complete electrical service for trucks, buses, RVs, and trailers
- Towing available for non-starting or electrically disabled vehicles
Schedule Your Truck Diagnostics or Electrical Repair Now: Call 843-861-9387!
Struggling with starting issues or electronic faults? Call 843-861-9387 today to schedule a diagnostic check or electrical repair at R & N Towing Truck and Trailer Repair. We’ll identify the problem fast and get your truck running again.
FAQs
What Areas Do You Serve?
We’re located at 929 Indian Branch Rd, Darlington, SC 29532, near the heart of Darlington. We proudly serve the surrounding areas, including Florence, SC; Camden, SC; Sumter, SC; Cheraw, SC; Marion, SC; and Lake City, SC.
What Does a Full Diagnostic Cover?
A full diagnostic checks your truck’s ECM for fault codes and evaluates electrical signals, voltages, and system functionality. It helps identify engine, transmission, emissions, and sensor-related issues.
Can You Replace a Truck Alternator?
Yes. We test alternator output and replace units that can’t maintain charge. A bad alternator can drain your battery and disable critical systems, so we check all supporting components as well.
How Can I Get in Touch?
Call R & N Towing Truck and Trailer Repair at 843-861-9387. Whether it’s a fault code, dead battery, or full wiring repair, our team is ready to help.
Diesel Truck Repairs
From complete engine rebuilds to brake repairs and trailer overhauls, our team handles every kind of heavy-duty repair. We work on all makes and models of trucks, trailers, RVs, and buses. Our goal is to get you back on the road quickly with repairs that last.
.svg){kind=icon}
Testimonials
Here's what our customers are saying, feel free to leave us a review!
