Heavy-Duty Diagnostics & Electrical Repair in Austin, TX

Precision Diagnostics & Electrical System Repairs in Austin, TX

Today’s trucks run on complex electronics. Whether you’re dealing with a no-start issue, a dead battery, or warning lights, we use professional-grade scan tools and multimeters to pinpoint and repair the problem correctly the first time.

Our services include:

• Check engine light diagnostics
• ECM/ECU fault code scanning
• Battery, alternator & starter diagnostics
• Electrical short tracing & circuit testing
• Power distribution troubleshooting
• Trailer wiring and lighting repair
• Sensor, fuse, and relay replacement
• Wiring harness inspection and repair
• HVAC and dashboard component troubleshooting

From diesel-specific diagnostics to general electrical system issues, Atlas Truck Repair keeps your truck reliable and safe.

Why Fleets Trust Atlas Truck Repair 

For over 40 years, Atlas Truck Repair has helped drivers and fleet managers fix problems that other shops couldn’t find. And as trucks become more complex, our diesel techs are trained in both mechanical and electronic diagnostics.

Here’s what sets us apart:

• Dealership-level diagnostic capabilities
• Experienced technicians familiar with all major brands
• Deep understanding of both engine and electrical systems
• Fast turnaround and accurate results
• No guesswork or unnecessary part swapping

We troubleshoot the issue and give you an honest solution. No runaround. No surprises.

Schedule Diagnostic Testing or Electrical Repair Today. Call 512-385-3661

Electrical issues usually come with warning signs. If your truck won’t start, has flickering lights, or keeps throwing fault codes, give us a call at 512-385-3661 to schedule a diagnostic or electrical repair with Atlas Truck Repair. We’ll find the fault and fix it right.

FAQ

What areas do you serve for diagnostics and electrical repairs?

We’re based in Del Valle,   near Terry Ln and Bastrop Fwy, and serve commercial drivers in Austin, Round Rock, Georgetown, San Marcos, Burnet, and areas up to 100 miles around Houston—including Pasadena, Sugar Land, Pearland, Galveston, Conroe, and more.

Can you diagnose fault codes on newer diesel trucks?

Yes. We use industry-standard diagnostic software compatible with major truck brands. Our team can access live data, freeze frames, and perform resets when required.

What are the signs I need electrical repair?

Look for flickering lights, weak battery charge, intermittent starting, burnt fuses, or warning lights that won’t clear. These often point to faulty wiring, sensors, or charging system issues.

How to Schedule Diagnostic Service with Atlas

Call 512-385-3661 to book your electrical or diagnostic service. We'll run a full scan, explain what’s going on, and repair the issue without delay. Honest answers. Fast fixes. Done right the first time.

What’s the fastest way to tell if a shop will earn lasting loyalty?

Ask for a written diagnostic plan with photos/data, a clear ETA with milestones, and exact parts/warranty terms. Shops that provide all three on day one are the ones that build true diesel repair shop loyalty.