2015 Land Rover Discovery Sport Won't Start

When your 2015 Land Rover Discovery Sport refuses to start, it can be frustrating, but understanding the common problems can help you diagnose the issue. One of the most frequent culprits is a dead battery, which can occur due to age or leaving lights on. If the battery is functioning but the vehicle still won’t start, the alternator might be at fault, as it is responsible for charging the battery while the engine runs. Another possibility is a failed starter, which is essential for initiating the engine's operation. Additionally, if your vehicle is equipped with keyless entry, software issues could lead to complications, such as doors unlatching unexpectedly. You may also encounter a "battery low" warning, indicating a potential parasitic drain or that the vehicle's systems are not shutting down properly. Lastly, if you receive a P0615-84 code, it points to a problem with the starter relay circuit, which can hinder the push-button start function. By identifying these common issues, you can take the first steps toward resolving the starting problem in your Land Rover Discovery Sport.

To effectively diagnose the starting issue in your 2015 Land Rover Discovery Sport, begin with the simplest checks before progressing to more complex diagnostics. Start by examining the battery, as a weak or dead battery is often the primary culprit behind starting problems. Perform a voltage test to confirm its condition. If the battery is functioning properly, move on to inspect the alternator, which is crucial for charging the battery while the vehicle is in operation. A faulty alternator can lead to insufficient power for starting the engine. Next, assess the starter itself, as any malfunction here can prevent the engine from turning over. Additionally, if you encounter a "battery low, please start engine" message, investigate potential parasitic drains that may be depleting the battery's charge. If these initial checks do not reveal the issue, consider conducting diagnostic testing to evaluate the wiring, connections, and other components related to the starting system. By following this structured approach, you can systematically identify and resolve the starting issue in your vehicle.