Stop Start System Fault in Nissan Qashqai (Causes & How to Fix)

Have you been experiencing issues with your Nissan Qashqai’s Stop Start System? If so, you’re not alone. The stop start system in the Nissan Qashqai is a complex technology that experiences faults and malfunctions. But what causes the “Stop Start System” fault in Nissan Qashqai?

A weak or dead battery causes the “Stop Start System” fault in Nissan Qashqai. One fix for this issue is to replace or recharge the battery. Alternatively, upgrading the battery to a higher capacity also prevents future faults.

In this article, we will dive into the common causes of stop start system faults in Nissan Qashqai and provide solutions on how to fix them. So, if you’re tired of dealing with a faulty stop start system, keep reading to learn more.

Table of Contents

What is the Stop Start System in Nissan Qashqai?

The stop start system in Nissan Qashqai is an innovative technology that automatically turns off the engine when the car is idling, such as at a red light or in heavy traffic.

This feature is designed to reduce fuel consumption and emissions by stopping the engine temporarily and restarting it when the driver is ready to move again. When the driver releases the brake pedal or depresses the clutch, the engine restarts automatically, allowing the car to move without delay.

The stop start system is a standard feature in many modern vehicles, including the Nissan Qashqai, and is becoming increasingly popular due to its environmental and economic benefits.

What Are The Causes And How To Fix The Stop Start System Fault In Nissan Qashqai?

If you’re a Nissan Qashqai owner experiencing issues with the stop start system, it’s important to understand the underlying causes. In this part, we’ll explore the common causes of the stop start system fault in Nissan Qashqai so that you can diagnose and fix the problem promptly:

Battery Issues

A weak or dead battery prevents the system from starting the engine when required. Battery issues are one of the common causes of stop start system faults in Nissan Qashqai. Here are battery-related causes:

Dead Battery Or Low Voltage: Dead or low voltage batteries cause the stop start system to malfunction. This is because the stop start system relies on a healthy battery to restart the engine quickly and efficiently. If the battery is dead or has low voltage, it cannot supply enough power to the system, resulting in a fault. Replace or charge it to the correct voltage level.
Weak Battery Capacity: Another issue related to the battery is a weak battery capacity. Even if the battery is not dead, a battery with a weak capacity can’t have enough power to support the stop start system’s demands. This can cause the system to disable or malfunction, as it cannot restart the engine quickly enough. Upgrading the battery to a higher capacity or replacing it with a new one prevents future stop start system faults related to battery issues. Replace the battery with a new one that meets the specifications of your Nissan Qashqai.

Faulty Alternator

The alternator is responsible for charging the battery while the engine is running, and it is a source of stop start system faults when it malfunctions. Below are the causes of alternator-related faults:

Overcharging Or Undercharging: If the alternator is overcharging or undercharging, it affects the battery’s performance and leads to a stop start system fault. Overcharging causes the battery to overheat and damage its internal components. At the same time, undercharging results in a low voltage that is insufficient for the stop start system to function properly. Replace the alternator or have it repaired to ensure it is charging correctly.
Worn-Out Alternator Belt: The alternator belt connects the alternator to the engine and drives the alternator. If the belt is worn out, it cannot turn the alternator properly, resulting in a decreased charging performance and, ultimately, a stop start system fault.

Malfunctioning Starter Motor

A worn-out starter motor or a failed starter solenoid prevents the engine from starting and disables the stop start system. The Following are malfunctioning starter motor-related causes of stop start system faults:

Worn-Out Starter Motor: Over time, the starter motor wears out due to repeated use. When the starter motor fails, it cannot turn the engine’s crankshaft, resulting in a stop start system fault. Replace the starter motor with a new one.
Starter Solenoid Failure: The starter solenoid is a component that sends power to the starter motor, and it fails due to various reasons, including wear and tear, electrical issues, or a faulty connection. If the starter solenoid fails, the starter motor is prevented from turning the engine, causing a stop start system fault. Replace the starter solenoid or have it repaired.

Sensor Problems

The stop start system in Nissan Qashqai uses sensors to detect when the engine needs to be restarted. If one of these sensors malfunctions, it causes the stop start system to fail. Sensor-related faults are:

Crankshaft Sensor Failure: The crankshaft sensor detects the crankshaft’s position, which determines when the engine needs to be restarted. If the sensor fails, the stop start system prevents restarting the engine at the right time, resulting in a fault. Replace the crankshaft sensor or have it repaired.
Camshaft Sensor Failure: Camshaft sensor is responsible for detecting the position of the camshaft, which is used to synchronize the engine’s valves and pistons. If the sensor fails, it affects the engine’s timing, causing the stop start system to malfunction. Sometimes, a camshaft sensor failure also results in engine misfires or stalling. Replace the camshaft sensor or have it repaired.

Which Are The Symptoms Of Stop Start System Fault In Nissan Qashqai?

The symptoms of a stop start system fault in Nissan Qashqai may vary depending on the specific cause of the fault. However, here are some common symptoms that drivers may experience:

The Stop Start System Does Not Activate: One of the most obvious symptoms of a stop start system fault is that the system may not activate when the vehicle stops. A warning light accompanies this on the dashboard.
Check Engine Light: If the stop start system malfunctions, the check engine light turns on. This indicates a problem with the system, and it is recommended to have your vehicle checked by a qualified mechanic to diagnose the issue.
Stop start System Disabled Message: When the stop start system fails, the dashboard displays a message indicating that the system has been disabled. This message appears in the form of an alert or warning light.
Difficulty Starting The Car: If the stop start system is not functioning correctly, it causes difficulty starting the car. This is due to a weak battery, a malfunctioning starter motor, or a sensor problem.
Poor Battery Performance: The stop start system in Nissan Qashqai relies on the battery to power the vehicle’s electrical systems. If the battery is weak or not performing correctly, it causes the stop start system to malfunction. This is indicated by a warning light on the dashboard or difficulty starting the car.

How Can You Prevent Stop Start System Fault In Nissan Qashqai?

Preventing a stop start system fault in Nissan Qashqai can help avoid the inconvenience and cost of repairs. Here are some tips to prevent a stop start system fault:

Regular Maintenance Of The Car

Regular maintenance of your Nissan Qashqai prevents a stop start system fault. Regularly scheduled maintenance, such as oil changes and tune-ups, ensures all components work correctly and prevent potential issues from developing.

Driving Habits

Your driving habits affect the performance of the stop start system. Avoid excessive idling, aggressive driving, and frequent short trips, which cause additional wear and tear on the system.

Keeping The Battery Charged

The stop start system in Nissan Qashqai relies heavily on the battery. Keeping the battery in good condition is crucial to the system’s operation. Avoid leaving the car unused for extended periods, as this causes the battery to discharge.

Final Words

The stop start system in Nissan Qashqai provides significant fuel savings and reduces emissions. However, like any other system, it develops faults that impact its performance. A stop start system fault can cause inconvenience and reduce the vehicle’s fuel efficiency, increasing fuel costs.

Regular maintenance of the car, safe driving habits, and keeping the battery charged prevent a stop start system fault in Nissan Qashqai. If you experience any symptoms of a stop start system fault, it is important to have the car inspected by a qualified mechanic to diagnose and repair the issue.

This guide describes the stop start system fault in Nissan Qashqai. By taking the proactive steps outlined in this guide to prevent a stop start system fault, you can enjoy the benefits of this innovative technology and keep your Nissan Qashqai running smoothly for years to come.