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.
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!
Joseph and the 509 Roadside crew have been an invaluable part of keeping our fleet of delivery trucks running reliably here at Culligan, and it has been great having such a fantastic, local mechanic. He is consistent, thorough and always goes the extra mile to ensure our vehicles are in excellent condition. His attention to detail and commitment to quality work are evident in every job he takes on. Knowing we can count on him for fast, dependable service makes all the difference in keeping our operations on schedule. Very highly recommended for all your fleet needs!
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.
I can’t speak highly enough of the service I received from 509 Roadside. My F150 was throwing multiple error codes and knocking, and eventually stranded me off I90 on a Sunday afternoon. Joseph with 509 was extremely patient and attentive, and helped walk me through problem solving over the phone, and I was able to get back on the road. (For a bit, but that’s the truck’s fault and not theirs!) Five stars, and I’d give more if I could.
Joseph did a great job replacing a small engine for us. He searched, bought and replaced it for us while keeping us informed every step of the way. With great pricing and service, we will continue to utilize him in the future for our needs.
509 Roadside is amazing. I was driving my truck and was in the area with an airbag broken on my trailer. I called 7 different shops within 100 miles of Moses lake around 1pm on a Thursday 3/13/25 and 509 was the only one to answer. Not only did they answer but they took the time to find the correct airbag and get me safely back on the road at a very reasonable price! It was a great experience and I will definitely be using their services again if I’m ever in need.
509 Roadside saved my day. I locked my keys in my trunk and called insurance to have them help connect me with someone to get into my car. I was waiting for the maintenance truck to come, 2.5 hours after my call. 509 Roadside was just driving by and helped. Super nice guy!
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.
Our resident transport bus broke down on the way back from Wenatchee. 509 Roadside made arrangements to get the vehicle towed to the shop and had it fixed the very next day. Great service!
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!