2020 Land Rover Range Rover Has A Check Engine Light

Check Engine Light Issues in 2020 Land Rover Range Rover: Causes and Solutions

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Reviewed by
Aisha
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 2020 Land Rover Range Rover 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 2020 Land Rover Range Rover 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 2020 Land Rover Range Rover?

When faced with a check engine light on your 2020 Land Rover Range Rover, 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, examine your dashboard for any additional warning lights or messages that might offer further insight into the problem. A visual inspection under the hood can also be beneficial; look for any obvious signs of wear or damage, such as frayed wires or cracked hoses. If these initial checks do not resolve the issue, using an OBD-II scanner is a crucial next step. This tool connects to your vehicle's diagnostic port and retrieves error codes that can help identify the specific malfunction. Finally, consulting your owner's manual can provide valuable context regarding the check engine light and highlight common issues specific to your model. By following this structured approach, you can effectively narrow down the potential causes of 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 2020 Land Rover Range Rover?

When the check engine light comes on in a 2020 Land Rover Range Rover, it can be a source of concern for any DIY enthusiast. Understanding the common problems that may trigger this warning can help you diagnose the issue effectively. One of the simplest culprits is a loose gas cap, which can lead to fuel vapors escaping and is easily fixable by ensuring the cap is tightened properly. More complex issues may involve the oxygen sensor, which plays a crucial role in managing fuel efficiency and emissions; a faulty sensor can significantly impact performance. Additionally, problems with the catalytic converter can also illuminate the check engine light, indicating a failure or inefficiency that may require professional attention. Other potential issues include a malfunctioning mass airflow sensor, which affects the air-fuel mixture, or problems with spark plugs and ignition coils that can lead to engine misfires. A faulty thermostat can cause overheating or improper engine temperature regulation, while vacuum leaks can disrupt the air-fuel ratio, triggering the warning light. By familiarizing yourself with these common problems, you can take the first steps toward troubleshooting and potentially resolving the issue on your own.

How urgent is it to address the check engine light in a 2020 Land Rover Range Rover?

When the check engine light illuminates in your 2020 Land Rover Range Rover, it is essential to recognize the urgency of the situation. This warning light indicates that there may be an underlying issue with the engine or emissions system, which, if left unaddressed, could lead to significant performance degradation and costly repairs. Ignoring the check engine light not only risks exacerbating the problem but can also compromise your vehicle's fuel efficiency and increase harmful emissions. Moreover, continuing to drive with this warning can result in more severe mechanical failures, potentially leaving you stranded or facing extensive repair bills. Therefore, it is crucial to have your vehicle inspected by a qualified mechanic as soon as the check engine light appears, ensuring that any issues are diagnosed and resolved promptly to maintain the health and performance of your Range Rover.

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