Diagnostics & Electrical Repair Service in Plainfield, Illinois

Mechanic performing diesel engine diagnostics at TVA Repair

A vehicle’s diagnostic and electrical system is complex because it is responsible for communicating with practically every component of your vehicle. These systems are responsible for a wide host of internal vital functions like batteries, lights, antennas, radios, security systems and much more. When the communication becomes disrupted or experiences failure, it can trigger a system alert. Take these warning signs seriously. When a warning light pops up on your dash, it is indicating that there could be an issue. As always, we stress the importance of taking care of a problem early because this will prevent more extensive costs associated with overdue repairs.

At TVA Repair, we are aware that the need for diagnostic and electrical services is inconvenient and at times stressful. You want to know what the problem is and are eager to get it fixed quickly, and that’s exactly what our team is trained to do. We will keep you informed on all aspects of the repair and update you on the status of your vehicle.

Rely on TVA Repair’s certified technicians

Electrical system problems can be hard to properly diagnose, especially with the variety of sizes, and vehicle models on the market. If you don’t have the right electrical diagnostic tools required to diagnose your vehicle, it is highly important that you seek the guidance of a certified technician. TVA Repair has a practical understanding of diagnostics and electrical. We have built a solid team of extraordinarily gifted technicians who know electrical systems inside and out. Our certified technicians take pride in being leading experts in the industry when it comes to understanding the fundamentals of electrical and diagnosis systems. 

Your heavy-duty diesel truck operates using an intelligent electrical system. The capabilities and intricacies of your vehicle will also mean that you have to invest in a lot of maintenance in order to keep your vehicle in proper running condition.

Common components checked with diagnostic and electrical services

Our team at TVA Repair will do our absolute best to ensure that diagnostic and electrical service does not take up too much of your time. Our diagnostic system will accurately find the issue, which saves us time and allows us to direct our focus on only what needs fixing. 

Some of the most common elements of a diagnostic and electrical service include:

  • Batteries & Cables 
  • Breakers & Fuses 
  • Interior and Exterior Lights 
  • Glow Plugs 
  • Starters & Alternators 
  • Wiring 

At TVA Repair, we like to think of ourselves as not only technicians but also problem solvers. We never want our customers to be unnecessarily stressed, which is why we go above and beyond to manage your problem for you.


What Our Customers Have to Say

We are dedicated to providing the best heavy-duty truck repair services in Plainfield, IL for our customers.

Dumitru Julea

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"I recently brought my 2022 Freightliner Cascadia in for service. I'm very happy with the service I received from TVA Repair. If you're in Plainfield, IL I highly recommend this shop."

ADL Transport

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"Great repair shop, been coming here for the last 2 years. Fair prices, knowledgeable mechanics and always fixed in timly manner as anticipated. Recommend."

Radhoo INC Dispatch

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"Great shop to do maintenance on your units."


I think this company is the best on the road Rigth now. All is very good New truck , perfect service and very young professional team

Nicola Simone
Google Review


Elpidio is one of the best employees in TVA that I have encountered. He has been very helpful and caring for me as a driver. If you’re looking into coming to TVA this is your man. Thank you brother!

Yaisel Reinoso
Google Review


The best company for drivers and owners. Great people to work with, you are part of a family/team. I would recommend it to everybody. They have a truck repair service, very professional employees Alex is one of them! I reccomend to anyone that needs repairs done on the truck or trailer.

Mihail Placinta
Google Review


I have been a CDL-A driver with full endorsements for over 2 years. I found myself forced to job hop from a few companies based on unsafe equipment, promises unmet, and some accepted company cultures of driver complacency, poor hygiene and negative unhappy work force. I have found the opposite of those unfavorable conditions. This is the job I envisioned when I decided to get my CDL License and fulfill a life long desire to drive for a living. The staff are so polite and highly intelligent. They don't act like they care but it is clear they care very much about operations, driver relationships and hometime. I am very polite, professional and positive in my personality. That is my nature. I have found a company I am proud to be a part of. I never wonder what other drivers are being paid any longer. The pay, like the company structure itself is excellent.

Gale Fox
Google Review

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Get in touch to find out how we can help you or to book your vehicle in for a service. We're open Monday through Friday from 8am-5pm and Saturdays 8am-12pm.

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