2022 Chrysler 300 Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2022 Chrysler 300: 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 2022 Chrysler 300 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 2022 Chrysler 300 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 2022 Chrysler 300?

When faced with a check engine light on your 2022 Chrysler 300, the first step is to visually inspect the vehicle for any obvious issues, such as ensuring the gas cap is securely tightened, as a loose cap can often trigger the light. Next, utilizing an OBD-II diagnostic scanner is crucial; this tool will help you retrieve the specific error codes associated with the light, providing insight into the potential problems. Common issues to look out for include a faulty oxygen sensor, problems with the catalytic converter, or a malfunctioning mass airflow sensor, all of which may require further inspection or replacement. Additionally, consulting your owner's manual can offer valuable guidance on interpreting the error codes and understanding the recommended actions. If these initial steps do not resolve the issue or if the problem appears to be more complex, seeking assistance from a qualified mechanic or dealership is advisable to ensure proper diagnosis and repair. By following this structured approach, you can effectively troubleshoot the check engine light and take informed steps toward resolving the issue.

What are the common problems that could cause the check engine light to illuminate in a 2022 Chrysler 300?

When the check engine light illuminates in a 2022 Chrysler 300, it signals potential issues that DIYers can investigate. One of the most straightforward problems to check is a loose gas cap, which can often be tightened to turn off the light. If the light persists, the oxygen sensor may be at fault; this component is crucial for monitoring the air-fuel mixture and can lead to reduced fuel efficiency if it malfunctions. Additionally, the catalytic converter could be experiencing issues, which can impact both emissions and overall vehicle performance. Spark plugs and ignition coils are also vital; their failure can cause engine misfires, triggering the warning light. Another common issue is a malfunctioning mass airflow sensor, which measures the air entering the engine and can affect performance if it fails. Lastly, problems with the exhaust gas recirculation (EGR) system, such as a clogged valve, can also cause the check engine light to activate. Addressing these issues promptly is essential for maintaining optimal vehicle performance and preventing further damage, making it beneficial for DIY enthusiasts to understand these common problems.

How urgent is it to address the check engine light on a 2022 Chrysler 300?

When the check engine light illuminates on your 2022 Chrysler 300, it’s crucial to take immediate action rather than dismissing it as a minor inconvenience. This warning light is your vehicle's way of communicating that there may be underlying issues with the engine or emissions system that require attention. Ignoring this signal can lead to escalating problems, including severe engine damage, which could result in costly repairs that far exceed the expense of a simple diagnostic check. Additionally, a malfunctioning engine can compromise your vehicle's fuel efficiency and overall performance, leading to increased operational costs and potential safety hazards on the road. Fortunately, modern vehicles are equipped with advanced onboard diagnostics that can help you identify the specific issue triggering the light, making it easier for DIY enthusiasts to troubleshoot and resolve the problem. By addressing the check engine light promptly, you not only safeguard your vehicle's health but also enhance your driving experience, ensuring that your Chrysler 300 remains reliable and efficient for years to come.

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