Dundas Automotive Repair | Auto Diagnostics

Auto Diagnostics

London, Ontario

Professional vehicle diagnostics, check engine light testing, electrical troubleshooting, warning light diagnosis, and performance inspections for all makes and models.

Professional Diagnostic Services

Find the Problem Before Replacing Parts

When a warning light comes on or your vehicle does not feel right, guessing can lead to unnecessary repairs.

At Dundas Automotive Repair, we provide professional auto diagnostics in London, Ontario to help identify the source of the problem. Our technicians inspect the concern, use diagnostic equipment where needed, and explain what we find before recommending repairs.

We diagnose check engine lights, electrical issues, starting concerns, drivability problems, performance issues, battery and charging concerns, ABS warnings, and other vehicle warning lights.

Diagnostic Warning Signs

  • Check engine light
  • ABS or brake warning light
  • Battery or charging warning light
  • Rough idle or stalling
  • Poor fuel economy
  • Hard starting or no-start condition

Complete Vehicle Troubleshooting

Advanced Diagnostics for Modern Vehicles

Modern vehicles rely on sensors, modules, wiring, computers, fuel systems, ignition systems, emissions equipment, and electrical components working together.

A dashboard warning light or drivability issue does not always point to one simple part. Proper diagnostics help identify the actual cause, so the correct repair can be completed the first time.

Our Diagnostic Services

  • Check engine light diagnostics
  • Warning light diagnosis
  • Engine performance diagnostics
  • Electrical troubleshooting
  • Battery and charging system testing
  • ABS system diagnostics
  • Sensor and computer diagnostics
  • Starting and no-start diagnostics
  • Fuel economy and drivability concerns
  • Vehicle inspection and repair recommendations

Check Engine Light Diagnosis

Is Your Check Engine Light On?

A check engine light can be caused by many different issues, from a loose gas cap to a sensor fault, ignition problem, emissions issue, fuel system concern, or engine performance problem.

Our technicians can scan the system, inspect the related components, and help determine what is actually causing the warning light. We explain the results clearly so you understand what needs attention.

Why Diagnostics Matter

  • Helps avoid unnecessary parts replacement
  • Finds the source of warning lights
  • Helps prevent small issues from becoming bigger repairs
  • Improves reliability and drivability
  • Supports accurate repair recommendations
  • Gives you clear information before approving repairs

Why Choose Dundas Automotive?

Proper Troubleshooting

We look beyond the warning light and inspect the related systems to help find the real issue.

Diagnostic Equipment

Our team uses professional diagnostic equipment and inspection procedures to support accurate repair decisions.

Honest Recommendations

We explain diagnostic findings clearly and recommend only the repairs your vehicle actually needs.

Need Auto Diagnostics in London?

Book your diagnostic appointment today and let our team help find the problem.