2013 Jaguar XJ Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2013 Jaguar XJ: 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 2013 Jaguar XJ 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 Jaguar XJ 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 2013 Jaguar XJ?

When faced with a check engine light on your 2013 Jaguar XJ, the first step is to assess the situation calmly and methodically. Begin by checking for any obvious issues, such as a loose or damaged gas cap, which is a common and easily fixable problem that can trigger the light. If the gas cap appears secure, the next step is to use an OBD-II scanner to retrieve the Diagnostic Trouble Codes (DTCs) from your vehicle's computer. This tool will provide specific codes that can help identify the underlying issue. Pay attention to whether the check engine light is steady or blinking; a blinking light often indicates a more serious problem, such as an engine misfire, which requires immediate attention to prevent further damage. If the codes point to a more complex issue that you are not comfortable addressing, it may be wise to consult a professional technician for a thorough diagnosis. By following this structured approach, you can effectively narrow down the potential causes of the check engine light and take appropriate action.

What common issues trigger the check engine light in a 2013 Jaguar XJ?

When the check engine light illuminates in a 2013 Jaguar XJ, it can be a source of concern for any DIY enthusiast. One of the most frequent culprits is a loose or faulty gas cap, which can lead to fuel evaporation and trigger the light. Additionally, issues within the emissions system, such as a malfunctioning catalytic converter or oxygen sensors, can also cause the warning to appear. Sensor malfunctions are another common issue, as they can misreport data to the engine control unit, leading to performance problems. It's crucial to address these issues promptly, as neglecting them can result in more severe engine damage and costly repairs down the line. By understanding these common problems, DIYers can take the first steps toward diagnosing and potentially resolving the issues that cause the check engine light to activate.

How urgent is it to address the check engine light on a 2013 Jaguar XJ?

When the check engine light illuminates on your 2013 Jaguar XJ, it is essential to recognize the urgency of the situation. Ignoring this warning can lead to serious consequences, including potential engine damage and costly repairs. A flashing check engine light is particularly alarming, indicating a severe issue that requires immediate attention. While it may be tempting to continue driving, doing so can exacerbate the problem and lead to further wear and tear on your vehicle. For those inclined to take a DIY approach, using a compatible diagnostic scanner is crucial for accurately identifying the underlying issue. This tool can help you understand whether the problem is minor or something that could escalate if left unaddressed. Even if the light is steady rather than flashing, it is advisable to investigate the cause as soon as possible, especially if it pertains to emissions, to avoid regulatory penalties and ensure your vehicle remains safe and efficient on the road. Taking prompt action not only protects your investment but also enhances your driving experience by maintaining the optimal performance of your Jaguar XJ.

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