Have you been experiencing problems with Nissan Qashqai’s “stop start system fault” error on the dashboard? We are interested in finding out what is causing this error, as well as potential solutions to resolve this issue.
In this article, I’ll explain why the Nissan Qashqai dashboard reveals this fault and what you should do first when it appears. Now, let’s look at all the errors caused by system faults.
Understanding stop start system fault Nissan Qashqai
Nissan Qashqai dashboard warnings related to the stop start system are general indicators designed to inform Nissan owners of potential problems with the vehicle’s system that may involve the battery, engine control unit, transmission system, sensors, or chassis control system.
An issue on the display can occur if any of these components malfunction or are faulty.
In this section, we will discuss the most common causes of system failures, a diagnostic guide to pinpoint the problematic component, and the solutions you can use to resolve them.
How do you fix the Nissan Qashqai stop/start system fault?
To figure out why a warning light is blinking, you’ll need to identify a faulty component, such as a battery, brake pedal, stop/start control module, or software glitch. Once these components have been inspected thoroughly, a final decision can be made regarding which of them needs to be replaced or repaired. Below is a quick video that will help you understand the common causes.
Common Causes of stop start system fault nissan qashqai
Below you’ll find a list of the most common causes, as well as the diagnosis and solution.
- Battery issues
- Faulty brake padel sensor
- Stop/start control module
- Wiring problems
Battery Issues
Nissan Qashqai vehicles exhibit the most common system faults originating from the battery. Various devices in cars depend on the battery to provide power, and if it fails, weakens, ages, or is damaged, it can disrupt energy flow and result in malfunctioning of the system.
It will be easier for you to diagnose a malfunctioning or faulty battery if you observe the symptoms below.
Symptoms
- Engine starting problems: If your engine is hard to start or if it cranks slowly, it may be due to a low battery voltage.
- Dim Lights: Faulty battery can also be indicated by dim headlights and interior lights
- Electronic components malfunctions: If the battery current is inadequate, some electronic components might behave erratically.
Diagnosis
By identifying the faulty component, different components can be diagnosed.
- Voltage test: To determine the battery voltage, a voltage test is conducted. Voltage tests require that the engine is turned off and the battery’s terminals are cleaned before they can be performed. A battery with a voltage below 12.6 volts indicates that it is not functioning properly. Battery voltage can be checked with a voltmeter.
- Inspect battery terminals: Make sure the terminals are clean and free of debris, as well as that the connections are tight so the power flow can be uninterrupted.
- Load test: Check that the battery can maintain voltage when the electronic components are turned on.
Solutions
To fix Nissan Qashqai’s system fault, first diagnose the electric parts and find the culprit component.
- Battery replacement: Nissan recommends replacing the battery with a new one if the voltage is lower than 12.6, the tool is old, malfunctioning, or weak, etc.
- Terminal cleaning: Clean corrosion off the terminals of your battery with baking soda and water, and tighten them firmly. Use a brush to clean the terminals after spraying the mixture on them.
- Charging: Charge and install again the battery in the engine if the voltage is low, but the condition is still good.
Faulty brake pedal sensor
To reduce fuel consumption and improve engine efficiency, the stop/start system automatically shuts off the engine when the vehicle is stationary.
When the brake pedal sensor detects impending brake pressure, a signal is sent to the control module, enabling the engine to be turned off. Nissan Qashqai drivers can receive a warning when their brake pedal isn’t working properly.
Symptoms
- Stop/start inactivity: A damaged brake pedal sensor prevents the vehicle’s stop/start system from operating while it is in rest mode.
- Error codes: To check for brake pedal-related errors, you can use a scanning tool.
Diagnosis
- Manual inspection: if there is any physical damage or disconnection in the brake sensor, you can examine it manually by yourself or consult an expert mechanic.
- OBD-II scanner: Using an OBD-II scanner, you can look for any brake sensor-related error codes and their explanations.
Solutions
- Sensor changing: If you are certain that the brake pedal sensor is malfunctioning and must be replaced, you must do so as soon as possible.
- Sensor adjustment: Adjust the sensor to the correct position and connect it to any disconnect parts if it is disconnected or not positioned correctly.
Engine control unit (ECU) issues
A Nissan’s engine control unit also allows you to activate the stop/start system; there is no need to manually trigger the system. A stop/start module is activated when the brakes are applied, the car is out of gear, and the ignition and fuel systems are cut off by the ECU.
Symptoms
- Faulty engine behavior: A malfunctioning ECU causes the engine to behave abnormally, such as stalling, misfiring, or sudden drops in performance.
- Electrical issues: ECU failure can cause some electrical systems to stop functioning or to function inconsistently.
Diagnosis
- Mechanical inspection: Check the components of the ECU for signs of wear, water damage, loose connections, or damage.
- Software updates: Ensure that your software is up to date and do not need to be updated.
Solutions
- Repair or replace the component: If you detect a damaged ECU component, repair it; if the ECU needs to be replaced, you should visit your nearest Nissan service center.
- Reflashing: When the software needs to be updated, make sure it is done as soon as possible.
Wiring Problems
If the wiring is defective or damaged, the stop/start system could be affected, causing Nissan Qashqai to display the stop/start system fault message.
Symptoms
- Burning smell: Burning wires indicate a short circuit or overheating cables. Consequently, other components may be damaged or a fault may occur in the system.
- Unresponsive systems: When there is a problem with the wiring, the system becomes unresponsive.
Diagnosis
- Visual inspection: Visually inspect wire connections for burnt, damaged, or corrupted wire connections.
- Check connector: Verify that each connector is working properly and does not have corrosion.
Solutions
- Repair or replace wires: If you find a damaged wire, repair it or replace it with a new one to ensure long-term use and avoid any electrical wiring problems.
- Secure connections: Make sure all connectors are securely attached and do not appear loose or corroded.
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Conclusion
To diagnose the fault that has caused your Nissan Qashqai to display the system fault warning, you need to use the diagnostic tool, conduct a visual inspection, or consult with a certified technician. It is important not to ignore this or postpone its repair, as it may cause serious system damage that will be expensive to fix later.
You can prevent these problems in the future by understanding what can cause them, how to diagnose them, and how to fix them.
Frequently Asked Questions
What should I do if my Nissan Qashqai’s stop/start system is not working?
You should first check the battery condition, brake pedal sensors, control module, and electrical components wiring for wear and tear when you see a warning light on the Nissan Qashqai display.
How can I reset the stop start system fault Nissan Qashqai message?
Nissan Qashqai system fault errors are most often caused by a malfunctioning battery. The warning light can be reset and fixed by disconnecting the battery from the engine. The negative terminal should be removed first, followed by the positive terminal, to avoid damage to the battery.
Check the warning light after a few minutes or up to half an hour after reconnecting the battery. Usually, this task will resolve the issue, but if it persists, then you should have your Nissan examined by a certified expert mechanic.
What are the common causes of system faults in a Nissan Qashqai?
Among the most common causes of Nissan Qashqai system faults are battery failure, transmission system problems, sensor faults including brake pedal position sensors, ECU faults, and control module malfunctions.
