Automatic transmission in a car: where is the speed sensor
Content
The speed sensor is a device that measures the speed of the vehicle and sends this signal to the car computer ECU. If this sensor stops working, the car will not work properly
The speed sensor is an element that is responsible for measuring the speed of the car and sends this signal to the car computer (ECU). The ECU uses this signal to calculate the exact moment when the automatic transmission should change gear.
The speed sensor is also important for the correct operation of the dashboard or cluster speedometer.
Where is the speed sensor located?
The speed sensor is located in the vehicle's transmission, on the output shaft or also in the vehicle's crankshaft. There will always be two sensors so that the computer can compare these signals.
When should I look for and replace the speed sensor?
The automatic transmission shift sensor is connected to the speed sensor. However, the symptoms of a malfunction are different.
Here are some of the most common signs of a bad vehicle speed sensor.
1.- Cruise control not working
Cruise control relies on knowing the vehicle's speed to function properly. If the speed sensor fails, cruise control may not be available until the sensor is fixed.
2.- Speedometer not working
Many speedometers work with a speed sensor connected to the transmission. If this speed sensor fails, your speedometer may not work.
3.- Slow or abrupt change of speed
Without a speed sensor, it can be difficult for the transmission control unit to know when and how to change gear quickly. You may experience sudden changes or no change at all.
4.- Check engine light
Some vehicles are equipped with sensors that allow the vehicle to start and run even if the speed sensor is faulty. In these cases, you will most likely see a warning light. check engine with a code that should let you know which speed sensor is faulty.
:
