2009 Chrysler Aspen Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2009 Chrysler Aspen: Common Causes and Solutions

Find Repair Location
Reviewed by
Bo Fader
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 2009 Chrysler Aspen 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 2009 Chrysler Aspen 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 2009 Chrysler Aspen?

When faced with a check engine light on your 2009 Chrysler Aspen, the first step is to understand the nature of the warning. The light can indicate a range of issues, so it's essential to start with a diagnostic scanner. By connecting the scanner to the test port under the dashboard, you can read any trouble codes that may provide insight into the problem. Make sure the key is in the 'ON' position to observe any additional warning lights that may accompany the check engine light, such as 'Power Limited' or 'Limited'. If you prefer a hands-on approach, consider utilizing services like AutoZone’s OBD Reader, which allows you to perform a self-diagnosis before deciding to visit a mechanic. While these initial steps can help you identify the issue, remember that some problems may require professional expertise for a thorough diagnosis and resolution. By following this methodical approach, you can effectively assess the situation and determine the best course of action for your vehicle.

What are the common problems that could cause the check engine light to illuminate in a 2009 Chrysler Aspen?

When the check engine light illuminates in a 2009 Chrysler Aspen, it can signal a range of common issues that are often manageable for DIY enthusiasts. One of the simplest problems to check is a loose gas cap, which can easily be tightened or replaced if damaged. More complex issues may involve the oxygen sensor, which monitors exhaust gases and can lead to decreased fuel efficiency if faulty. Additionally, problems with the catalytic converter can arise, affecting the vehicle's emissions and performance. Spark plugs and ignition coils are also critical components; if they malfunction, they can cause misfires and trigger the check engine light. Another potential culprit is the mass airflow sensor, which measures the amount of air entering the engine and can lead to performance issues if it fails. Lastly, the exhaust gas recirculation (EGR) system can present problems, particularly if the EGR valve becomes clogged. Addressing these issues promptly is essential to maintaining your vehicle's performance and preventing further damage, making it worthwhile for DIYers to familiarize themselves with these common problems.

How urgent is it to address the check engine light in a 2009 Chrysler Aspen?

When the check engine light illuminates in your 2009 Chrysler Aspen, it is crucial to understand the urgency of the situation. This warning light is not just a minor inconvenience; it signals potential issues within your vehicle's engine or emissions system that could escalate if left unaddressed. Ignoring this alert can lead to decreased fuel efficiency, increased emissions, and even serious engine damage, which can result in costly repairs. For DIY enthusiasts, the first step is to use an OBD-II scanner to retrieve diagnostic trouble codes, which can help pinpoint the underlying issue. However, it’s essential to recognize that some problems may require professional expertise, especially if they pose safety risks. By taking immediate action, you not only safeguard your vehicle's performance but also prevent more significant complications down the road. Therefore, addressing the check engine light promptly is not just advisable; it is a necessary step in maintaining the health and safety of your Chrysler Aspen.

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.

2009 Chrysler Aspen Check Engine Light Guide | RepairPal