What to Expect from Our Diagnostic Process
Our ASE-certified technicians don’t just read the stored trouble code and hand you a repair order. A code tells us where to start testing, not which part to replace. We assess the related systems, verify the actual failure, and then walk you through what we found in plain language. You review every repair option and give approval before any work begins.
Our Digital Vehicle Inspection can include photos and videos of findings and recommendations, so you can review the condition we observed. Once you approve the recommended work, we can complete many repairs immediately or schedule service based on parts and your availability.
Let us know when the warning light appeared, whether it is steady or flashing, and whether you have noticed changes in vehicle performance. Details such as recent fueling, battery replacement, rough idling, hard starting, unusual noises, or reduced acceleration give our technicians useful context as they evaluate diagnostic and inspection findings.
Check Engine Light Diagnostics for Broomfield & Westminster Drivers
We provide Full Service Diagnostic Testing and explain your repair options before work begins. Broomfield and Westminster drivers can schedule check engine light diagnostics online or by phone.
Call (720) 706-3763 or schedule your diagnostic visit to discuss your dashboard warning.
1. Schedule Your Appointment
Whether scheduling online or over the phone be sure and let us know what you're experiencing so we can provide fast and accurate service advice.
2. Diagnostics and Inspections
Drop off your vehicle and the shop will get to work with inspections and diagnostics using the same equipment as the manufacturers to determine issues and next steps.
3. Digital Vehicle Inspection Report and Estimate
Following the diagnosis we will text you a digital vehicle inspection report, containing pictures and videos of our findings and recommendations.
4. Review and Approval
A service advisor will reach out to walk you through the findings and recommendations to determine how you would like to proceed, or you can approve work directly in your DVI.
5. Work Performed or Scheduled
Most work can be completed immediately, or scheduled based on parts and customer availability.
See Exactly What Our Technicians Found
Every visit includes a free Digital Vehicle Inspection (DVI), a photo-documented review of your vehicle taken during the service. You receive photos of the components our technicians inspected, so you can see the findings for yourself before deciding on any repair. There’s no need to take our word for it.
We also perform a complimentary Courtesy Inspection covering major systems including lights, brakes, suspension, tires, and battery.
Check Engine Light Services in Broomfield: What You Should Know
The check engine light can be triggered by dozens of different faults.
Common causes include:
- A faulty oxygen sensor
- A failing catalytic converter
- A loose or damaged gas cap
- Misfiring spark plugs
- Mass airflow sensor issues
A free code scan from an auto parts store will show a stored trouble code, but it won’t tell you whether a sensor has actually failed or which component needs replacement. That distinction matters: replacing parts based on a code alone may not fix the underlying problem.
Our Full Service Diagnostic Testing uses manufacturer-quality equipment to go beyond basic scanner codes and assess related vehicle systems. Depending on the cause, driving with an unresolved warning light can affect fuel economy, vehicle drivability, emissions performance, or other systems. A diagnostic appointment is appropriate when the light stays on, returns after being cleared, or appears with a change in how your vehicle runs.
Flashing vs. Steady: How Urgent Is Your Check Engine Light?
A steady check engine light means a fault has been stored and should be diagnosed soon. It doesn’t usually require pulling over immediately, but it shouldn’t be ignored for weeks. A flashing light is a different situation. It can indicate an active engine misfire that can damage the catalytic converter quickly. If your light is flashing, reduce speed and seek service promptly.
Stop driving or seek immediate assistance if a flashing light is accompanied by severe shaking, significant loss of power, overheating, smoke, or other signs that the vehicle is unsafe to operate.
Check Engine Lights & Colorado Emissions Testing
Broomfield County is an emissions-enhanced county, but Colorado emissions testing requirements vary by vehicle and model year. An illuminated check engine light alone does not automatically determine an inspection result. If you have an unresolved emissions-related fault, have it diagnosed before registration tasks or an inspection appointment, and consult Air Care Colorado for current vehicle-specific emissions information.
Broomfield and Westminster drivers can schedule check engine light diagnostics online or call (720) 706-3763. We can explain the findings and repair options before work begins, and every repair is backed by the Nice Difference Warranty (3 years/36,000 miles). Christian Brothers Automotive is ranked #1 in Customer Satisfaction Among Aftermarket Full-Service Maintenance and Repair Providers in the J.D. Power 2025 Aftermarket Service Index (ASI) Study for the sixth consecutive time. (For J.D. Power 2025 award information, visit jdpower.com/awards.)
Your Local Christian Brothers Amenities
FAQs
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Q. "What is the difference between a steadily lit and a flashing check engine light?"A steadily lit light means that a sensor is sending a signal to your vehicle's computer that something is wrong or it could simply mean that the sensor is out. If your check engine light is flashing, however, that means there is a serious issue and you should stop driving immediately.
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Q. "Why is my check engine light on but nothing seems to be wrong with my vehicle?"If nothing within your vehicle stands out, then it is possible that it is just a minor issue such as a loose gas cap or a bad O2 sensor. It is still recommended to see a mechanic if the light doesn't disappear to check for any larger issues.
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Q. "Do you offer a warranty?"As part of our Nice difference.® commitment to providing our customers the best auto service experience possible, we also offer a3-year/36,000-mile warranty on all the work that we do. We offer this warranty at every Christian Brothers Automotive nationwide, and it will be honored at any location, regardless of which branch did the initial work.
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Q. "Can you provide service under my extended warranty?"Yes. At Christian Brothers Automotive, we work with all major extended warranty providers to make needed repairs for our customers. If you have an extended warranty, you can discuss your carrier with our team when scheduling an appointment and confirm that the work will be covered. You can find a partial list of the extended warranty companies we work with here.
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Q. "What to do if your check engine light turns on?"We recommend heading to your local auto shop as soon as you are able. This is typically a sign that there is an abnormality within your engine.
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Q. "Is it safe to drive your car when the check engine light is on?"It depends. If you are experiencing other noticeable issues with your vehicle, it may be best to pull over. Otherwise, it is typically okay to drive to your local auto shop. You will want to get this checked sooner rather than later to avoid being stranded with a broken-down car.
Have more Questions?
Our friendly auto service experts have the answers.
Call your local Christian Brothers Automotive car shop today
Hear What Our Customers Had to Say About Us
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"I recently took my Jeep Wrangler into Christian Brothers - Broomfield for the airbag light that came on...originally, they worked up a cost to replace it and fix the issues, then called me back to let me know the technician found a little known extended wa"
- M.B.