Check Engine Light and Warning Light Diagnostics Services Near You

Check Engine Light and Warning Light Diagnostics

The illumination of the check engine light or other warning lights on your vehicle’s dashboard is an indication that your vehicle might have a problem that requires attention. These lights serve as an early warning system, alerting you to potential issues ranging from minor to severe. The check engine light can signify several different problems — from an emissions system malfunction to engine issues. Similarly, other warning lights, such as the oil pressure light, battery light, or temperature light, can indicate specific problems that need immediate attention.

Ignoring these warning lights can lead to further, more complex, and expensive repairs down the line. Our diagnostic service involves using advanced tools to read your vehicle’s computer system, which directs us to the problem area. We then conduct thorough inspections to accurately diagnose the issue. Whether it’s a sensor failure, wiring problem, or a more serious engine concern, our expert technicians can identify the root cause and recommend the appropriate repairs. Timely diagnostics and repairs not only save you from costly fixes in the future but also ensure the safety and reliability of your vehicle on the road.

Check Engine Light and Warning Light Diagnostics Services: Our Expert Solutions

  • Diagnostic Services for Engine Warning Lights
  • Diagnostic Services for Vehicle Warning Lights
Fix check engine light

Specializing in Check Engine Light and Warning Light Diagnostics for assured vehicle safety in McHenry, IL, Crystal Lake, IL, and surrounding areas.

Auto Service in MCHenery, IL

Why Choose B&B Auto

Founded in 1976, B & B Auto serves the automotive repair and new tire needs of customers in McHenry, IL, Crystal Lake, IL, Johnsburg, IL, and surrounding areas.

Quality repair services including brake repairs, wheel alignments, exhaust system repairs, diagnostics, transmission repairs, lube and oil changes and other preventive maintenance, and steering and suspension system repairs from a professional automotive shop with a focus on customer satisfaction.

  • Complete Auto repair on foreign and domestic vehicles from minor maintenance to major repairs.
  • Tire services include road force balancing, alignment, tire repair, tire rotation, TPMS service, and competitive prices on tire brands like Hankook, Continental, Bridestone, Firestone and Mastercraft.
  • Towing and roadside assistance
  • 24-hour key drop.
  • Local pick-up and delivery.
  • Free Wi-Fi
  • We’re multilingual and speak Italian, Polish & Spanish

Contact Info

(815) 363-7560


Mon-Fri: 8am-5pm

Sat: 8am-3pm | Sun: Closed

Contact us

Schedule a Repair

With a legacy built on honesty and quality, we’ve become a pillar of the McHenry community and its surrounding areas, including Crystal Lake and Johnsburg.

Our well-trained staff specializes in identifying the needs of your vehicle and performing the necessary repairs and maintenance to keep your vehicle at peak performance.

For inquiries or to book an appointment, please contact us or call (815) 363-7560. One of our dedicated team members will assist you promptly.

Details on your vehicle

Submitting this form does not guarantee that the time you’re choosing is available, but we will be in touch with you within 24 hours, to schedule a time that works well for you.

As always, very good service for the Recall notice, and some service also done at the same time. I just had to get the tires changes ( winter to summer ) - very quick. good service, I was out of there in 1.5 hours. great work Once again, Cherry was able to get the tires…
Patrick Webster