[Fixed] Stop Start System Fault Nissan Qashqai

The Nissan Qashqai stop-start system is made specially to save fuel by shutting off the engine when not required. When you are stopped for more than three seconds, the system becomes active. But sometimes it happens that the system stops working and you start facing a lot of trouble due to this and due to this system fault car won’t start.

Don’t worry this article gives a thorough guide to understanding the primary reasons and solutions for the system fault on Nissan Qashqai whether you have a 2015, 2016, 2017, 2018, or 2019 model.

Table of Contents

What Does Qashqai’s “Stop Start System Fault” Mean?

Nissan has added a new feature to its lineup of cars which is a stop-start system. This prevents the starting of the engine until the driver releases the brake pedal. But if you see the “Stop/Start System Fault” warning on your dashboard. It means Qashqai’s ECU has identified a problem with the Stop/Start system. When the car is not moving, this mechanism instantly turns off and restarts the engine. The purpose of the stop-start system is to minimize motor wear and tear by reducing the duration of idling.

7 Main Causes of Stop Start System Fault Nissan Qashqai

There can be several reasons due to which your Nissan Qashqai is showing this message. Let’s dive into these causes:

1. Battery Terminal Corrosion

it can be one of the reasons why you are facing this issue. The battery may not give enough power for the stop-start system because of the corrosion, which inhibits the terminal and battery from making a proper connection which results in the issue of the stop-start system working.

2. Excessive Engine Heat

The Nissan Qashqai’s stop-start mechanism can fail due to excessive engine heat. Some of the reasons for the engine overheating can be brought on by prolonged acceleration, heavy transportation, and adverse weather. Due to this your car cannot work properly and this error appears.

3. Loose Battery Terminals

A stop-start system that has loose battery terminals will not work correctly because the battery won’t get the necessary charge and will not be able to supply the system with enough power.

4. Faulty Stop-Start Sensor

The stop-start mechanism relies a lot on its sensor. The system as a whole could fail if this sensor fails to work properly.

5. Alternator Failure

The Qashqai’s alternator can sometimes fail, making it difficult for it to properly charge the battery. When this happens, the car won’t have enough power to operate the stop-start system, so you notice that starting your car takes longer than usual.

6. Software Glitch

Software is necessary for the proper functioning of your Nissan Qashqai, just like it is for your computer or smartphone. The stop-start system is not an exception. Sometimes, a simple software bug might be the cause of the issue.

7. Faulty Clutch Paddle Switch

The stop-start system on your Nissan Qashqai could not be working properly due to an incorrectly functioning clutch pedal switch. The start-stop system is activated or deactivated by signals sent by the clutch pedal switch. The stop-start function may not operate properly if the switch is faulty, as it may not deliver accurate signals.

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How to Fix Nissan Qashqai Stop Start System Fault

There are several solutions that you can follow to make the Nissan Qashqai stop-start system work properly:

1. Examine the Battery Terminals

The first thing that you should do is examine the battery terminals for corrosion or loose connections if you have just replaced your battery and it is still in good condition. To stop corrosion and loose connections from occurring again, tighten the terminals after using a wire brush to clean the areas and apply anti-corrosion spray.

2. Apply Injector Cleaner

Sometimes, buildup or collected particles in the fuel injectors can have an impact on engine performance and perhaps cause issues with the stop-start system. Fuel combustion efficiency can be increased by removing these deposits with the use of an injector cleaning.

3. Examine and swap out the main battery

The battery is essential to the stop-start system’s functionality since it supplies the electricity required to swiftly restart the engine when needed. Problems can arise because of a weak or defective battery that is unable to supply the necessary current. Consequently, it’s critical to routinely check the battery’s health, particularly if the car is starting cold or has been unused for long periods.

4. Get the Vehicle Scanned

It’s time to get the car examined if, after checking that the battery terminals are clean and tight, you still have problems. To find the exact issue, you should bring your car to a Nissan dealer so they can scan it for any error codes.

Final Thoughts

Keep in mind that a weak battery, an issue with the alternator or starting motor, a faulty sensor, a software bug, high engine heat, or even low gas levels can all contribute to a Stop-Start system issue in your Nissan Qashqai. You must take note of these symptoms and have them handled right away. Replacing the malfunctioning components or upgrading the system software are the two main fixes. If you’re skilled with mechanics, you could do some of these repairs yourself otherwise it’s best to get help from a professional.