Mobile Truck Diagnostics & Electrical Repair in Moses Lake, WA

Electrical issues can shut your truck down in seconds. From diagnostics to alternator and wiring repairs, 509 Roadside keeps your systems running safely and reliably. Trust us with all your electrical needs.

Truck diagnostic

Diagnostic and Electrical Repair in Moses Lake, WA

At 509 Roadside, we specialize in full-service diagnostics and electrical repair for trucks, trailers, buses, RVs, and heavy equipment. Whether it’s a faulty sensor or a failing alternator, we’ll pinpoint the problem fast.

Common diagnostic and electrical repairs include:

  • Semi truck electrical diagnostics
  • Alternator and battery replacement
  • Starter motor repair
  • Fault code clearing and ECM scanning
  • Wiring repair and electrical troubleshooting

What Makes Us Different

509 Roadside isn’t your average diesel shop. We service a wide range of vehicles with the tools and training needed to handle modern diagnostic and electrical issues. Every repair is completed with accuracy and efficiency to minimize downtime.

  • In-shop service for trucks, RVs, trailers, buses, and fleets
  • Roadside assistance available during business hours
  • Honest timelines and transparent estimates

Need us on the road? Our mobile service team can assist during weekdays for breakdowns and scheduled on-site repairs. If you’re stuck and need help, 509 Roadside has you covered with 24/7 roadside assistance.

FAQs

How Can I Get Diagnostic and Electrical Repair?

Call 509-855-4932 to schedule your service. Whether it’s a check engine light or a complete no-start issue, we’ll diagnose and repair your truck’s electrical system fast.

Can Electrical Issues Cause a Truck Not to Start?

Yes. Electrical failures like a bad alternator, weak battery, damaged wiring, or ECM faults can all prevent your truck from starting. It’s critical to address these issues before they leave you stranded.

What Areas Do You Serve For Diagnostic and Electrical Repair?

We’re located at 11969 Debonair Street Northeast, Moses Lake, WA. We also proudly serve Spokane, WA; Kennewick, WA; Pasco, WA; Richland, WA; Yakima, WA; Wenatchee, WA; and Ellensburg, WA.

How Do You Diagnose Electrical Problems in a Truck?

We use advanced diagnostic tools to scan fault codes, test circuits, and isolate problem areas. From faulty sensors to shorted wiring, we systematically narrow down the issue to find the right fix.

Schedule Your Electrical Repair Now: Call 509-855-4932!

If your truck is throwing codes, stalling out, or won’t start, it’s time to get it checked. Call 509-855-4932 now to schedule your truck electrical repair or diagnostic scan today.

What They're
Saying About Us

See why our customers consider 509 Roadside their go-to repair shop in Moses Lake, WA and the surrounding areas!

My car broke down and Joe found me stranded. He called a tow truck immediately and waited with me, I told him I thought my alternator burned out and he confirmed that was the case as soon as he walked up. He had the car fixed first thing in the morning and his rate was very reasonable. Joseph is a great person and an amazing mechanic. I highly recommend his services.

Devon M

These guys got me in to their shop on short notice and found my electrical problem quickly. Can’t thank them enough! I will call them again if I need help in the area!!

Jon William

My window wasn’t working for the past 2 years and I was looking for a good mechanic for a while but they were too pricey. But 509 roadside did not disappoint! They were able to fix my window at a great price! Definitely recommend!! I can finally go through the drive through!

Rocio Mendoza

Totally helped me out of a jam. Last Wednesday 2/26/25 late in the day, my 2011 Isuzu Blue Bumper Box truck had a red check engine light go off. You guys were my angels. Thanks so much for clearing the code and getting my truck back on the road. It made it all the way to Spokane and back to Seattle.

Bobbi Gerlick

I am a hostler driver in our yard and anytime I need repairs, I call on 509 roadside, they haven't disappointed me at all. Very professional and courteous, I strongly recommend them.

David Phillips

Came in for an issue, fixed extremely quick. The most honest mechanics ive seen in a long time. Will definitely be coming back for any future issues!

Brine Hyperbole

Had my starter go out they had a new on hand and I was back on the road right at 2 hours, great job 509.

Terry Robinson

I started using 509 Roadside in 2023 and I can’t say enough good things about Joe and his team. They provide prompt and professional repair services for my equipment at very reasonable rates. Since my office is based outside of the region where 509 Roadside is located, they are a strategic resource for my equipment service needs.

Matthew Cummings

Contact 509 Roadside

Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch!

Our Hours

Monday - Friday
8:00 AM - 12:00 PM
1:00 PM - 5:00 PM

24/7 Roadside Assistance

Speak to a Service Advisor now!