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Either lit or flashing “check engine light” or “service engine soon” light will tell you it’s time to schedule an appointment at Jeno’s. Our auto service diagnostic testing and system analysis are thorough. We have the most updated software to handle any manufacture’s data and entire system information. We keep this current with consistent manufacture’s updates.

When you get an engine warning light, vehicles store those codes in the vehicle’s computers. We will perform a diagnostic code scan and through analyzing these codes, will be able to precisely determine the cause or issue resulting in the warning in your vehicle. From there, we will be able to recommend the appropriate fix and will tell you the cost estimate to resolve the issue.

Jeno’s can diagnose your American or European vehicle. Some shops are not equipped to diagnose the most technical European vehicles. Jeno’s specializes in Audi, BMW, Volkswagen and Mercedes diagnostics. We will correctly diagnose your Toyota, Subaru, Ford, Chrysler, Dodge, Ram, and Hyundai.

Check Engine Lights in Littleton | Jeno's Auto Service

WE DON’T SELL UN-NEEDED REPAIRS (check our Google reviews)

Instead, we diagnose your vehicle and will tell you the most important and needed fixes (based on safety) and will let you know what to keep an eye on that will need to be addressed at a future date for your vehicle.


Once we have fixed your vehicle, we back up all our work with NAPA’s Peace of Mind 36 months or 36,00 miles warranty on our work.

If you are from Lakewood CO, Englewood CO, Denver CO, Columbine CO, Ken Caryl CO, Highlands Ranch CO, or other cities nearby, Jeno’s can diagnose your vehicle and will make recommendations on what issues to address.

Auto Service Diagnostic Testing in Littleton | Jeno's Auto Service
Jeno's Auto Service is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call Jeno's Auto Service (303) 794-6700 if you have any issues in accessing any area of our website.