Check Engine Light typically costs $110–$180 in the US. Best left to a professional mechanic for most vehicle owners.
The check engine light indicates a problem detected by the vehicle's onboard computer. It can range from minor to serious issues.
The check engine light indicates a problem detected by the vehicle's onboard computer. It can range from minor to serious issues.
You can use a basic OBD2 scanner to check the code, but diagnosis and repair often require a mechanic.
This repair is commonly required to fix the following OBD-II diagnostic trouble codes:
Watch how to do this repair yourself
Diagnostic fees can be unclear and are sometimes used to justify inflated or vague repair estimates.
Four practical ways to lower your out-of-pocket cost without sacrificing quality or safety.
Because this repair involves specialized calibration or safety-critical hardware, professional installation is recommended.
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The check engine light indicates a problem detected by the vehicle's onboard computer. It can range from minor to serious issues.
You can use a basic OBD2 scanner to check the code, but diagnosis and repair often require a mechanic.
It means the car's computer has detected an issue—ranging from a loose gas cap to more serious engine problems.
You can use an OBD2 scanner to read the code, but interpreting the cause and fixing it often needs a mechanic.
Price ranges are compiled from published labor estimates and retailer parts prices, adjusted using 2024 Bureau of Economic Analysis (BEA) Regional Price Parities and cross-checked against repair quotes uploaded to Service Buddy.
of U.S. car buyers (n > 2,800)
Source: YouGov BrandIndex 2026Describe your car's symptoms and our AI will diagnose the likely cause.
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Prices vary by make and model. Select your vehicle for a tailored estimate.
Real, current check engine light coupons and discounts captured from national chains and repair brands. Updated automatically.
christian brothers
Santa Monica Ford
Santa Monica Ford
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Ford Corporate
AAMCO Transmissions
Rick Case Mazda (Duluth, GA)
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