(703) 352-7770 |  3215 Old Pickett Road, Fairfax, VA 22031  |  Mon–Fri: 8:00am–6:00pm (After Hours Key Dropoff Available)

Vehicle Testing and Diagnostics in Fairfax, VA

Considering the complexity of today’s modern vehicle, it takes an experienced mechanic equipped with cutting-edge tools to get to the underlying cause of the problem quickly. Fortunately, at ABS Unlimited Auto Repair, that’s precisely what you will receive.


Since we opened our doors back in 1987, we have continued to invest in the latest and most advanced diagnostics and vehicle testing equipment. As a result, we remove the guesswork out of diagnosing and repairing your vehicle. This results in faster diagnostics and faster auto repair in Fairfax, VA, which saves you time and money.

An ABS Unlimited auto technician performs a diagnostics check on a vehicle

Reading and Understanding Vehicle Diagnostics Codes

Contrary to popular belief, diagnostic codes are only the first step in determining what’s wrong with your vehicle. To pull the code, we will connect our electronic vehicle scanning tool to your vehicle to learn which error codes are being communicated. Unfortunately, many unskilled technicians stop there and assume specific components should be replaced. This assumption often leads to costly and unnecessary repairs.

At ABS Unlimited Auto Repair in Fairfax, VA, our ASE-Certified mechanic always takes it a step further. As it’s always nice to know the “what,” our mechanic always wants to know the “why.” Once we discover the error code, we will dig deeper to uncover the actual problem triggering the code.

As a win-win solution, our digital inspections save you and our mechanics time. Each mechanic will quickly diagnose problems, document the issues, and communicate solutions to you. This, in turn, saves you money as well.

AAA Approved Auto Repair Shop

VA Certified Emissions Repair Facility

ASE Certified & Trained Technicians

Female Friendly

Excellent Customer Service

Fair & Efficient Service

2 Year / 24k Mile Warranty

Lyft and Uber
Service Available 

What is Vehicle Diagnostics Test Near Me?

A vehicle diagnostics test is a comprehensive analysis of your vehicle’s various computer systems and components. Our diagnostic testing utilizes probes and scanners to provide real-time information regarding what’s going on with your vehicle. An effective diagnostics can only be performed by a well-trained mechanic who understands how to run the proper diagnostics test based on the error codes your vehicle displays.

We use Snap-On Diagnostic Scanners Zeus and Verus Edge equipment. Once our mechanic connects to your vehicle, our Snap-On diagnostics vehicle testing equipment will scan systems and components for issues.

Some of the most common elements scanned with our Snap-On diagnostics vehicle testing equipment include:

When Should I Have Diagnostics Vehicle Testing Performed Near Me?

One of the most common indicators that your vehicle needs diagnostics testing is when your Check Engine Light comes on. In this event, we will perform comprehensive diagnostics to learn the specific areas that require additional testing and analysis.


In addition to an illuminated Check Engine Light, if you answer yes to any of the following questions, you should schedule a vehicle diagnostics test at ABS Unlimited Auto Repair:

  1. Does your engine run roughly?
  2. Does your vehicle experience random or regular power outages?
  3. Have your MPGs decreased?
  4. Does your vehicle stop, causing you to restart it?
  5. Does your vehicle emanate odd smells?
  6. Do you hear unusual signs?

Contact ABS Unlimited Auto Repair for Diagnostics and Vehicle Testing in Fairfax, VA

At ABS Unlimited Auto Repair, we are a leading AAA-Approved auto repair facility in Fairfax, VA. We offer a range of automotive repair and maintenance solutions for virtually all makes and models of vehicles.


ABS Unlimited Auto Repair in Fairfax, VA provides fast and efficient vehicle diagnostics if your Check Engine Light is illuminated or demonstrates any out-of-the-normal symptoms. We leverage state-of-the-art technology and experienced mechanics to perform vehicle diagnostics testing near you on virtually all makes and models.