What is automatic transmission speed sensor?
The automatic transmission speed sensor is measuring the rotational speed of the transmission. The measured data is used by the engine management to determine the right gears, shifting times and shifting pressures. The sensory unit is either based on the Hall-effect or has a magneto resistive sensor system.
How many speed sensors are found on a auto shift transmission?
two transmission speed sensors
Fabulous. Your car’s transmission speed sensors are vital to its powertrain operation. Most modern cars have two transmission speed sensors, one at the input shaft and another at the output shaft.
How does a transmission speed sensor work?
The speed sensor detects a gear or target wheel in the transmission and generates an electric digital signal proportional to the speed of rotation. The transmission controls use this information to modify various transmission functions such as shift points and perform diagnostic tests.
How does the automatic transmission speed sensor work?
The Automatic Transmission Speed Sensor sends signals to the speedometer to indicate how fast your vehicle is traveling, regulates the flow of fuel and ignition timing, and operates your cruise control.
Why is the speedometer on my car not working?
If your speedometer is erratic, or doesn’t work at all, it could be because the dial or screen is not receiving consistent speed information from the transmission speed sensor.
How does the Delphi automatic transmission speed sensor work?
The Delphi Automatic Transmission Speed Sensor measures the speed of a wheel or drive axle and sends the information to the Engine Control Unit. The Automatic Transmission Speed Sensor is a detection device that measures the speed of a wheel or drive axle and sends the information in the form of an analog voltage signal to the Engine Control Unit.
Where is the speed sensor located on a car?
The transmission speed sensor is also a vital component in electronic speedometers. It is located either on the transmission output shaft, or the crankshaft, and cars tend to have two of them, so their data can be corroborated. The sensors function through a surprisingly simple mechanism.