What does P0725 mean?
engine speed input circuit
What is po725?
Error Code P0725 is defined as Engine Speed Input Circuit Malfunction. When Error Code P0725 appears, this means that the PCM (powertrain control module, also known as ECM or engine control module in other vehicle makes) has seen a circuit malfunction in the engine speed sensor input signal.
What is engine speed sensor?
Your vehicle’s engine speed sensor, or vehicle speed sensor as it is also known, sends information to your car’s computer about how fast the car’s engine is spinning at any particular moment. The sensor does this by recording how fast the crankshaft of your vehicle is spinning.
What is P0720 code?
The P0720 code is a standard OBD-II trouble code that detects an issue with the output speed sensor circuit. The powertrain control module (PCM) relies on a signal from the output speed sensor, so that it can determine the correct shift strategy and send that information to the transmission.
What is the difference between input and output speed sensor?
Typically, two sensors communicate the transmission data to the vehicle’s powertrain control module. The first sensor, referred to as the input sensor, monitors the speed of the transmission’s input shaft. The second sensor is the output sensor, which monitors the output shaft speed.
Can speed sensor cause shifting problems?
Even in a manual vehicle, a bad transmission speed sensor can cause gear shifting problems. Just moving the stick can be more difficult, and you may notice that the shaft feels rougher, or faster than usual when you shift.
What sensors are in a transmission?
Sensors in a transmission and their function.
- The Transmission Input Speed Sensor.
- The Transmission Output Speed Sensor.
- Vehicle Speed Sensor.
- Airflow sensor.
- Turbine Speed Shaft Sensor.
- Intake Air Temperature Sensor.
- Coolant Temperature sensor.
- Throttle position sensor.