2024 Nissan Frontier Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2024 Nissan Frontier: Common Causes and Solutions

Find Repair Location
Reviewed by
Devin Cabugcal
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 2024 Nissan Frontier 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 2024 Nissan Frontier 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 initial diagnostic steps to take for a check engine light on a 2024 Nissan Frontier?

When faced with a check engine light on your 2024 Nissan Frontier, it's essential to adopt a systematic diagnostic approach to identify the underlying issue. Start by checking the gas cap, as a loose or damaged cap is a common culprit that can trigger the light. Next, take a moment to observe other dashboard gauges for any additional warning lights or unusual readings that may offer further insights. Utilizing an OBD-II scanner is a crucial step; it allows you to retrieve the specific error code associated with the check engine light, which can significantly narrow down potential problems. Once you have the code, conduct some research to understand its implications and the issues it may indicate. Additionally, inspect the wiring and connections under the hood for any signs of damage or disconnection, as these can often lead to diagnostic trouble codes. Don't forget to check the levels of essential fluids like oil and coolant, as low levels can also trigger warning lights. If these initial steps do not resolve the issue or provide clarity, consulting a mechanic for a professional diagnosis is advisable. By following this structured approach, you can effectively troubleshoot the check engine light and potentially save on repair costs.

What are the common problems that could cause the check engine light to activate in a 2024 Nissan Frontier?

When the check engine light illuminates in a 2024 Nissan Frontier, it can signal a range of common issues that DIYers can investigate. One of the simplest problems to check is a loose gas cap, which can easily be tightened or replaced if damaged. Another frequent culprit is a faulty oxygen sensor, which affects fuel efficiency and may require replacement if malfunctioning. Additionally, issues with the catalytic converter can lead to significant performance problems, and while this may require professional assistance, understanding its role can help in diagnosing the issue. Worn spark plugs are also a common cause of the check engine light, as they can lead to engine misfires and reduced performance. Similarly, problems with the mass airflow sensor can disrupt the air-fuel mixture, necessitating a thorough inspection. Ignition coil malfunctions and engine misfires are other potential triggers, often linked to spark plug issues or fuel injector problems. Lastly, a faulty EGR valve can cause emissions-related problems, which may require more specialized knowledge to address. While some of these issues can be tackled at home, it’s essential to have the vehicle diagnosed by a qualified mechanic for a definitive solution, especially if the problem persists.

How urgent is it to address the check engine light in a 2024 Nissan Frontier?

When the check engine light illuminates in your 2024 Nissan Frontier, it is essential to act swiftly, as this warning can indicate a range of issues that may escalate if left unaddressed. Ignoring this signal can lead to decreased fuel efficiency and potentially severe engine damage, which could result in costly repairs. Moreover, some problems may pose safety risks, such as compromised braking or steering systems. Fortunately, modern vehicles are equipped with sophisticated onboard diagnostics that can help you identify the specific issue triggering the light, making it easier for DIY enthusiasts to tackle the problem. By promptly diagnosing and addressing the underlying issues, you not only safeguard your vehicle's performance and longevity but also save yourself time and money in the long run. Therefore, if your check engine light comes on, consider it a priority to investigate the cause and take appropriate action to ensure your Nissan Frontier remains in optimal condition.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.