Where is the speed sensor on a 2004 Jeep Liberty?
The speed sensor on the 2004 Jeep Liberty is located on the right rear of the transmission near the tail shaft, under the hood of the vehicle.
How does the output speed sensor work?
The output speed sensor is a small unit connected to the transfer case. It has a magnetic pickup consisting of a magnet and coil, as well as a rotor with gear teeth. When these spin, it creates a square wave signal. The more signal volts created in the sensor, the faster the vehicle is moving.
Where are the speed sensors located on a jeep?
Signals from the speed sensors, N2 and N3, (6, 8) are recorded in the transmission control module (TCM), together with the wheel and engine speeds and other information, and are processed into an input signal for electronic control. Speed sensor N2 (6) records the speed of the front planetary rear annulus assembly (10).
How does the N2 sensor work in a jeep?
With the vehicle moving forward or reverse, N2 speed sensor reading will be greater than zero in all gears. Whenever the K1 clutch is applied (2nd, 3rd, and 4th) N2 will be equal to N3. There is no speed sensor internal to the transmission that directly measures input shaft speed.
Where are the input and output sensors located?
The engine speed is fed to the TCM via can bus thus providing impeller speed. There is no speed sensor internal to the transmission that directly measures output shaft speed. ABS wheel sensors provide output shaft speed. K1 clutch (N3 speed sensor) will show no rotation whenever the B1 Brake is applied.
Is there a speed sensor on the transmission?
There is no speed sensor internal to the transmission that directly measures input shaft speed. However, when K1 is applied N2 equals input shaft/turbine speed. The engine speed is fed to the TCM via the vehicle’s communication bus thus providing impeller speed.