2013 Mazda CX-5 Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2013 Mazda CX-5: Common Causes and Solutions

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Emissions System
0%
60% chance it's
Something else
The most common reasons a 2013 Mazda CX-5 has a check engine light are an emissions system component, a sensor, or a catalytic converter.
  • Emissions System: A faulty emissions system component, such as an oxygen sensor or EGR valve, can lead to increased emissions and trigger the check engine light.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2013 Mazda CX-5 has a check engine light?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the steps to diagnose the check engine light issue in a 2013 Mazda CX-5?

To effectively diagnose the check engine light issue in your 2013 Mazda CX-5, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the gas cap; a loose or damaged cap is a common trigger for the check engine light and is easily fixable. If the cap is secure, the next step is to use an OBD-II scanner, which you can connect to the vehicle's diagnostic port. This tool will provide you with error codes that indicate specific issues within the engine or related systems. Once you have the codes, research them using your vehicle's manual or reputable online resources to gain insight into the underlying problems. Additionally, visually inspect components such as spark plugs, wires, and hoses for any signs of wear or damage, as these can also contribute to engine issues. If you are still unable to pinpoint the problem after these steps, it may be wise to consult a professional mechanic who can provide a more thorough diagnosis and necessary repairs. By following this structured approach, you can efficiently identify and address the cause of the check engine light in your Mazda CX-5.

What are the common problems that could cause the check engine light to illuminate in a 2013 Mazda CX-5?

When the check engine light comes on in a 2013 Mazda CX-5, it can be a source of concern for any driver. Understanding the common problems that could trigger this warning light is crucial for effective DIY troubleshooting. One of the simplest issues to check is the gas cap; a loose or damaged cap can easily cause the light to illuminate. If the gas cap is secure, the next step is to consider the oxygen sensor, which plays a vital role in fuel efficiency and emissions. A malfunctioning sensor can lead to poor performance and should be inspected. Additionally, problems with the catalytic converter can also trigger the check engine light, often indicating a more serious issue that may require professional attention. Other potential culprits include a faulty mass airflow sensor, which affects the air-fuel mixture, and worn-out spark plugs that can cause engine misfires. Ignition coil failures and engine vacuum leaks are also common issues that can disrupt engine performance and illuminate the light. By systematically checking these components, DIYers can often identify the root cause of the check engine light and take appropriate action to resolve the issue, ensuring their Mazda CX-5 runs smoothly.

How urgent is it to address the check engine light in a 2013 Mazda CX-5?

When the check engine light illuminates in your 2013 Mazda CX-5, it serves as a critical warning that should not be ignored. The urgency of addressing this issue cannot be overstated, as the light can signify a range of problems, from minor sensor malfunctions to serious engine or emissions system failures. Neglecting this warning can lead to decreased fuel efficiency and performance issues, which not only affects your driving experience but can also escalate into more significant and costly repairs. For DIY enthusiasts, it’s essential to understand that timely intervention can prevent further damage to your vehicle, ultimately saving you both time and money. By promptly diagnosing and addressing the underlying issues indicated by the check engine light, you can ensure the optimal performance and reliability of your Mazda CX-5, making it a worthwhile endeavor for any car owner.

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