2017 Honda Pilot Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2017 Honda Pilot: Common Causes and Solutions

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Reviewed by
Andrew Hajjar
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 2017 Honda Pilot 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 2017 Honda Pilot 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 2017 Honda Pilot?

When faced with a check engine light on your 2017 Honda Pilot, it's essential to approach the diagnosis methodically. Start by checking the gas cap, as a loose or damaged cap is a common and easily fixable issue that can trigger the light. Next, take a moment to observe the dashboard gauges for any unusual readings that might indicate other underlying problems. If everything appears normal, using an OBD-II scanner is a crucial step; this tool will help you retrieve error codes from the vehicle's onboard computer, providing specific insights into the issue at hand. Additionally, inspect the spark plugs, as worn or faulty plugs can also cause the check engine light to illuminate. Finally, ensure that all essential fluid levels—such as oil, coolant, and transmission fluid—are adequate, as low levels can lead to engine complications. By following these steps, you can effectively narrow down the potential causes of the check engine light and take appropriate action to resolve the issue.

What are the common problems that could cause the check engine light to illuminate in a 2017 Honda Pilot?

When the check engine light comes on in a 2017 Honda Pilot, it can be a source of concern for any DIY car owner. One of the most frequent culprits is a loose gas cap, which can easily be checked and tightened to see if the light turns off. Another common issue is a faulty oxygen sensor, which monitors the exhaust and can affect fuel efficiency if not addressed. Additionally, problems with the catalytic converter can lead to significant performance issues, making it essential to investigate if the light remains illuminated. Worn or faulty spark plugs are also known to trigger the check engine light, as they play a crucial role in the ignition process. Furthermore, issues with the mass airflow sensor can disrupt the engine's air-fuel mixture, leading to performance problems. Lastly, malfunctioning ignition coils can cause misfires, which will also activate the check engine light. For those looking to tackle these issues themselves, it’s important to have a diagnostic tool on hand to read error codes, as this can provide specific guidance on what needs to be fixed. Addressing these common problems promptly not only helps in maintaining the vehicle's performance but also prevents further damage down the line.

How urgent is it to address the check engine light in a 2017 Honda Pilot?

When the check engine light illuminates in your 2017 Honda Pilot, it is essential to recognize the urgency of the situation. This warning signal is not merely a nuisance; it indicates that your vehicle's engine or emissions system may be experiencing issues that could escalate if left unaddressed. While some triggers, like a loose gas cap, may seem trivial, others could signify serious problems that could compromise your vehicle's performance and safety. Ignoring the light can lead to decreased fuel efficiency, increased emissions, and potential engine damage, which can result in costly repairs down the line. For DIY enthusiasts, the first step is to use an OBD-II scanner to retrieve diagnostic trouble codes, which can help identify the specific issue. However, if the codes indicate a more complex problem, it is advisable to consult a qualified mechanic to ensure that the necessary repairs are made promptly. By taking immediate action, you not only safeguard your vehicle's health but also enhance your driving experience.

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2017 Honda Pilot Check Engine Light: Causes & Solutions