Stop Start System Fault Nissan Qashqai Causes & Fixes: 2024

Are you facing trouble fixing the “stop start system fault Nissan Qashqai” error on your Nissan Qashqai’s dashboard? Also, Willing to know the causes of this error and potential solutions to eliminate this system fault.

I will help you understand why this is illuminating on your Nissan Qashqai dashboard and what you must do first when the fault is notified on the display. So, let’s explore all about the system fault errors.

Understanding stop start system fault Nissan Qashqai

A stop start system fault Nissan Qashqai warning on your Nissan Qashqai’s dashboard is a general indicator whose purpose is to inform the Nissan owner about the potential issue with the vehicle’s system that could related to the battery, engine control unit, transmission system, sensors, and chassis control system.

When any of these components are faulty or malfunctioning, they can trigger a system fault issue on the display.

Now, we will discuss the common causes that need quick attention and repair, a diagnostics guide to pinpoint the faulty component, and solutions to help you fix the system error.

How do you fix the Nissan Qashqai stop/start system fault?

First, you must find a faulty component, such as a battery, brake pedal, stop/start control module, or software glitch, causing a warning light to blink on the display. After a complete inspection of these components, you can finalize which needs replacement or repair. However, for a quick overview of common causes, the below video will help you.

Common Causes of stop start system fault nissan qashqai

The most common causes, as well as the diagnosis and solutions, are described below.

• Battery issues
• Faulty brake padel sensor
• Stop/start control module
• Wiring problems

Battery Issues

The battery is the first and most known cause of system faults in Nissan Qashqai vehicles. It supplies power to various electronic parts of cars, and when the battery becomes faulty, weak, too old, or damaged, it can disrupt the flow of energy and cause the system to malfunction.

The following symptoms will help you analyze whether the battery is faulty or malfunctioning.

Symptoms

• Engine starting problems: When you face difficulties starting the engine, or it is slowly cranking and taking a long time, the battery does not supply enough power to start the engine.
• Dim Lights: Dim headlights and interior lights also indicate that the battery is faulty
• Electronic components malfunctions: Some electronic components might start behaving erratically due to a poor current supply from the battery.

Diagnosis

Diagnosis of different components helps to identify the faulty part.

• Voltage test: The purpose of conducting a voltage test is to identify the battery voltage. Turning off the engine and cleaning the battery’s terminals before performing a voltage test is essential. When the voltage is lower than 12.6 volts, it is a sign that the battery is not functioning correctly. Use a voltmeter to check the number of volts in the battery.
• Inspect battery terminals: Ensure that the battery terminals are not dirty or covered with debris, and also check that the connections are not loose because they can disrupt the power flow.
• Load test: Conduct a load test by turning on the electronic components and checking whether the battery can maintain voltage under load.

Solutions

After diagnosing the electric parts and finding a culprit component, follow these solutions to fix the system fault on Nissan Qashqai.

• Battery replacement: If the battery voltage is lower than 12.6 or the tool is old, malfunctioning, or weak, it’s advised to replace it with a new Nissan official suggested battery.
• Terminals cleaning: Use baking soda and water to clean the corrosion terminals of the battery and tighten them securely. Spray the mixture on the terminals and then clean it with a brush.
• Charging: When you find the battery voltages are low but its condition is good to use, charge it and install it again in the engine.

Faulty brake pedal sensor

The stop/start system works so that when the vehicle is stationary, it automatically turns off the engine to minimize fuel consumption and improve engine efficiency.

The brake pedal sensor delivers a signal to the control module, determining when to turn the engine off. A faulty brake pedal can trigger a system fault warning on Nissan Qashqai.

Symptoms 

• Stop/start inactivity: During rest mode, the vehicle’s stop/start system won’t function because of a faulty brake pedal sensor.
• Error codes: You can use an error codes scanning tool to search for brake padel-related codes indicating failure.

Diagnosis 

• Manual inspection: you can manually inspect the brake pedal sensor yourself or consult an expert mechanic to look for any physical damage or disconnection in the brake sensor.
• OBD-II scanner: You can use an error codes scanning tool like an OBD-II scanner to look for any brake sensor-related code and its explanation.

Solutions 

• Sensor changing: When you ensure that the brake pedal sensor is the culprit and not working correctly, you must replace it quickly and install a new sensor to fix the issue.
• Sensor adjustment: if the sensor is disconnected or not positioned correctly, adjust it to the correct position and connect it to the wires or any disconnected part.

Engine control unit (ECU) issues

The stop/start system in Nissan also relies on an engine control unit; you don’t need to activate the stop/start system manually. Activating the stop/start module occurs when the brakes are applied, the car is out of gear, and the ECU cuts fuel and ignition.

Symptoms 

• Faulty engine behavior: when the engine starts behaving unusually, like stalling, misfiring, and sudden decrease in engine performance, it shows a problem in ECU.
• Electrical issues: Some electrical systems will stop functioning or inconsistently working due to ECU failure.

Diagnosis 

• Mechanical inspection: Inspect the ECU and its components and look for any signs of wear or water damage, loose wire connections, or damaged parts.
• Software updates: Check that the software is up to the latest version and that there is no need to update it.

Solutions 

• Repair or replace the component: After detecting a damaged ECU component, repair it; if it’s necessary to replace the ECU, then visit your nearest Nissan service center to replace it.
• Reflashing: If the software is old and needs to be updated, ensure it immediately.

Wiring Problems

Faulty or damaged wiring can impact the operation of the stop/start system, which can trigger the stop start system fault Nissan Qashqai message.

Symptoms 

• Burning smell: The burning of wires indicates that the cables are overheated and have a short circuit. It can damage other components and cause a system fault.
• Unresponsive systems: Some systems will start behaving unresponsively due to wiring problems.

Diagnosis 

• Visual inspection: Inspect wire connections visually and look for damaged, corrupted, or burned wire.
• Check connector: Ensure that all the connectors are functioning efficiently and no one is affected by corrosion.

Solutions 

• Repair or replace wires: When you find a faulty wire, repair it if possible or replace the old wire with a new one, which is best for long-term usage without facing any electrical wiring-related issues in the future.
• Secure connections: Ensure that no connector is loosed or corroded and all are secure properly.

After encountering the system fault warning in your Nissan Qashqai, you first need to find the faulty component with the help of the diagnostic tool, visual inspection, or consulting a certified technician. Please don’t ignore it or postpone its repair later because it can lead to critical system damage that will cost a lot to repair.

By understanding the common causes, potential diagnosis steps, and solutions, you can keep your Nissan Qashqai safe from these issues whenever you trigger them later.

FAQ – Frequently Asked Questions

What should I do if my Nissan Qashqai’s stop/start system is not working?

When your Nissan Qashqai’s display flashes a warning light of system fault, you must first inspect the battery condition, brake padel sensor checking, control module inspection, and check for wear and tear in the ECU and electrical components wiring. 

How can I reset the stop start system fault Nissan Qashqai message?

The battery is the most known culprit of system fault errors in Nissan Qashqai. Disconnect the battery from the engine to reset and fix the warning light. First, remove the negative terminal and then the positive to avoid battery failure.

Wait for a few minutes up to half an hour, reconnect the battery, and check the warning light. In most cases, the issue is resolved by following this task, but if it still shows, then take your Nissan to a certified expert mechanic.

What are the common causes of system faults in a Nissan Qashqai?

The most common causes of system faults in Nissan Qashqai include battery failure, transmission system problems, sensor issues including brake padel sensor, ECU fault, control module malfunctioning, and electrical system fault.