What causes the Infiniti Q50L start-stop system to malfunction?
2 Answers
Infiniti Q50L start-stop system malfunction reasons: The vehicle's electrical circuit system has failed, it is recommended to contact the local 4S store for inspection as soon as possible. How to use the start-stop system: The driver sits in the cockpit, the red light at the intersection ahead turns on, the driver steps on the brake pedal, stops and shifts out of gear. The Start-Stop system automatically detects: the engine idles and no gear is engaged; the wheel speed sensor of the anti-lock system shows zero; the electronic battery sensor shows sufficient energy for the next start. The Infiniti Q50L has a length, width, and height of 4867mm, 1823mm, and 1456mm respectively, with a wheelbase of 2898mm.
When driving my Infiniti Q50L, the start-stop system malfunctioned, which is often caused by insufficient battery power due to aging, leading the system to automatically deactivate. The start-stop system requires stable voltage support, especially since AGM batteries degrade quickly in capacity after prolonged use and stop functioning. Additionally, sensor misdetections, such as wheel speed or engine temperature sensors, can also cause it to fail—like when sensors become sluggish in cold winters, rendering the system ineffective, though this isn’t a real issue. The impact is increased fuel consumption and emissions, and I’ve noticeably had to refuel more often during city commutes. The diagnostic method is simple: I bought an OBD scanner to read the codes, and if P0562 appears, it indicates an electrical problem. For prevention, regular battery replacement and sensor cleaning can help avoid issues—don’t wait until it worsens and causes engine starting difficulties, affecting the entire vehicle system. Testing battery health during routine maintenance is a hassle-free and cost-effective measure.
