2023 Land Rover Discovery Sport Has A Check Engine Light

Resolve check engine light issues in your 2023 Land Rover Discovery Sport.

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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 2023 Land Rover Discovery Sport 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 2023 Land Rover Discovery Sport 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 2023 Land Rover Discovery Sport?

When faced with a check engine light on your 2023 Land Rover Discovery Sport, it's essential to approach the diagnosis methodically. Start by checking for any additional warning lights on the dashboard, as these can provide valuable insights into the underlying issue. Next, inspect the gas cap; a loose or damaged cap is a common culprit that can easily trigger the check engine light. Following this, conduct a visual inspection of the vehicle for any signs of damage, such as leaks or loose wiring, which could indicate a more serious problem. If these initial checks do not reveal the issue, utilizing an OBD-II diagnostic scanner can be a game-changer, as it allows you to retrieve specific error codes from the vehicle's computer system, guiding you toward the source of the problem. Finally, don’t forget to consult your owner’s manual, which can offer detailed information about the check engine light and recommended actions tailored to your vehicle. By following these steps, you can effectively narrow down the potential causes of the check engine light and take informed action to resolve the issue.

What are the common problems that could cause the check engine light to illuminate in a 2023 Land Rover Discovery Sport?

When the check engine light illuminates in a 2023 Land Rover Discovery Sport, it signals potential issues that DIY enthusiasts can often troubleshoot. Start by checking the gas cap, as a loose or damaged cap is a common and easily fixable problem. If the cap is secure, consider the oxygen sensor, which, if faulty, can lead to decreased fuel efficiency and increased emissions. Another critical component to inspect is the catalytic converter, as any inefficiencies here can trigger the light due to its role in reducing harmful emissions. Additionally, worn or malfunctioning spark plugs can significantly impact engine performance, making regular maintenance essential. The mass airflow sensor is also worth examining, as its failure can disrupt the air-fuel mixture, affecting both performance and fuel economy. Lastly, keep an eye on the ignition coils; if they fail, they can cause misfiring and rough idling, which should be addressed promptly. While these checks can often be performed at home, if the check engine light remains illuminated, seeking a professional mechanic's expertise is recommended for a comprehensive diagnosis.

How urgent is it to address the check engine light on a 2023 Land Rover Discovery Sport?

Addressing the check engine light on a 2023 Land Rover Discovery Sport is of utmost importance due to the potential risks associated with ignoring this warning. The check engine light can indicate a range of issues, from minor glitches to serious engine problems that could compromise the vehicle's performance and safety. Neglecting this warning may lead to further damage, resulting in costly repairs that could have been avoided with timely intervention. Additionally, some issues indicated by the check engine light may affect the vehicle's emissions compliance, posing legal and environmental concerns. Therefore, it is crucial to have the vehicle diagnosed by a qualified mechanic as soon as the light illuminates, ensuring that any underlying problems are addressed promptly to maintain the vehicle's reliability and safety on the road.

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