Check Engine Light & Car Diagnostics in Collinsville, VA

Understanding the Check Engine Light: Importance, Causes, and Effective Solutions

Is Your Check Engine Light On?

A check engine light or warning light doesn't always tell you exactly what's wrong with your vehicle. A trouble code gives us a place to start, but reading a code and properly diagnosing a problem are two different things.


At Auto Tech, our goal is to find the cause of the problem, not simply read a code and start replacing parts.


Our technicians use professional diagnostic equipment along with testing and experience to determine what's actually happening with your vehicle.


Auto Tech is located in Collinsville, VA, just minutes from Martinsville, and provides automotive diagnostic services for drivers throughout Collinsville, Martinsville and the surrounding Henry County area.

Orange check engine warning light on a car dashboard

More Than Just Reading Trouble Codes

Modern vehicles have dozens of computers, sensors and electronic systems working together. A trouble code may identify the system where a problem was detected, but that doesn't necessarily mean the component named in the code has failed.

Proper diagnosis may require testing sensors, wiring, electrical circuits, mechanical components and vehicle data before determining what is actually causing the problem.


That's why we believe in testing before replacing parts whenever possible.


Problems We Diagnose

We can help diagnose problems such as:

  • Check engine lights
  • Dashboard warning lights
  • Engine performance problems
  • No-start and hard-start conditions
  • Intermittent problems
  • Electrical problems
  • Charging-system concerns
  • Battery drain concerns
  • Sensor and computer-related issues
  • Unusual vehicle behavior or drivability problems


Check Engine Light Diagnostics

If your check engine light comes on, there can be many possible causes—from something relatively simple to a more complicated engine, emissions, fuel, ignition or electrical problem.


Instead of guessing, our technicians use the information stored by the vehicle as part of a larger diagnostic process to determine what testing needs to be performed next.


Once we identify the problem, we'll explain what we found and recommend the appropriate repair.


Electrical Diagnostics

Many vehicle problems that appear mechanical can actually be electrical.


Auto Tech can test electrical circuits, batteries, charging systems, starters, sensors and related components to help locate the source of the problem.


Need Car Diagnostics Near Collinsville, Martinsville, and Henry County, VA

If your check engine light is on, your vehicle won't start, or something simply doesn't seem right, give Auto Tech a call at 276-666-5957. We're located at 4173 Virginia Ave in Collinsville, VA, conveniently serving drivers from Collinsville, Martinsville, and Henry County, VA.


We'll be glad to help determine what's actually causing the problem.