Where is the speed sensor of Haval M4 located?
3 Answers
Haval M4 speed sensor is located inside the transmission housing. Function of speed sensor: The speed sensor is a very important sensor, which provides data for the speedometer on the dashboard. Moreover, the signal from the speed sensor must also be fed back to the ECU. The ECU adjusts the transmission gear, regulates the lock-up of the torque converter, controls the engine idle speed, manages the activation and deactivation of the cooling fan, and regulates the cruise control based on this signal. Function of wheel speed sensor: The wheel speed sensor is one of the most critical sensors, as it is related to driving stability, driving safety factors, and the vehicle's handling performance.
In the Haval M4, the vehicle speed sensor is typically installed near the transmission housing, specifically around the transmission output shaft underneath the car. Based on my own inspections of several vehicles, it is located close to the drive wheel area and primarily detects rotational speed to transmit signals to the dashboard for speed display. If you plan to locate it yourself, ensure the car is parked safely and then check underneath near the transmission side. Sometimes, it is connected to a wiring harness and can be affected by oil or dirt buildup, leading to erratic speedometer readings or failure. Remember to disconnect the battery's negative terminal for safety before proceeding. If you cannot locate it, it's advisable to seek professional assistance to avoid damaging components, as the Haval M4's design is relatively compact—though the sensor position is clear, caution is necessary during operation. Regular cleaning during maintenance can help reduce the risk of malfunctions.
I once experienced a speedometer failure in my Haval M4. When I asked the mechanic at the auto shop, they said the vehicle speed sensor is usually fixed near the transmission output shaft. Simply put, it's like a rotating wheel monitor installed there to accurately measure the drive wheel's rotation speed. You might not see it by just opening the hood; you'd need to crawl under the car to check near the transmission housing—it's likely a small black component with a wire connector. I recommend starting with the basics: check if the wiring harness connection is loose or contaminated, as dirt often causes signal interruptions. If the gauge issue persists, the sensor might be faulty. Don't force removal; the transmission area is delicate and wires can be easily damaged. Get it fixed early to avoid affecting driving—inaccurate speed readings can lead to misjudged risks.
