How to check the output shaft speed sensor?
How to check the output shaft speed sensor?
Unplug each of the harness connections from the vehicle wiring harness, output shaft speed sensor, TFT sensor if equipped and the PCM/ECM. Using the the DVOM set to the ohms scale, with one lead on each end of the harness connectors using the factory wiring diagram as reference, check for excessive resistance.
What causes a DTC on an output shaft sensor?
Causes of this DTC may include: Output shaft speed sensor Electrical wiring or connections Transmission fluid temperature sensor
When to replace a p0720 output speed sensor?
Resistance should be within specification determined by the factory shop manual. If the resistance is out of range or over limit (OL), replace the sensor. Check for power going into the sensor, and at the PCM harness connector using a factory wiring diagram as reference.
How does duty cycle work on speed sensor?
Using a graphing volt meter or oscilloscope set to the duty cycle scale with the positive lead on on the signal side of the sensor either after the sensor or at the PCM/ECM harness connector, and the negative lead to a known good ground. The duty cycle will only be displayed while the vehicle is in motion or the tires are spinning.
How do you replace a speed sensor on a car?
Align the replacement speed sensor into the sensor socket. Turn one full turn with your fingers to ensure the sensor is place. Continue to screw the sensor into place with the wrench. Replace the bolt to secure the sensor in place, tighten with the socket wrench. Reconnect the wire harness, align the harness and push into place.
What happens when a transmission speed sensor goes bad?
A failed transmission speed sensor could cause the engine light to come on. Some transmission speed sensors are driven by a gear making them like a governor, however, most speed sensors are magnets that change signal when the output shaft is turning.
Where is the transmission output speed sensor located?
Top and Side View of Transmission Output Speed Sensor and installed on Left Side of Transmission Tail-shaft. This is another inside baseball type post concerning auto and truck repair.
Where is the rear differential speed sensor located?
This is another inside baseball type post concerning auto and truck repair. The first picture is of the Rear Differential Speed Sensor which is mistakenly replaced because of a code involving the Transmission Output Speed Sensor located in the left side bottom of the transmission tail-shaft.
What is p0720 output speed sensor malfunction DTC?
2006 chrysler pacifica touring codes p0700 p0720 p0731 . Already replaced input and output sensors. fluid clean not burned. Check engine light comes right back on and vehicle will not shift gears. Lunges at stops . Reset computer and within a mile it’s does great then lunges and repeats same problem… Here is my problem.
Is there another code associated with the TFT sensor?
If there is another code associated with the TFT sensor as well as the OSS sensor, suspect a possible problem with either sensor, or the wiring in between This code is similar to codes P0721, P0722 and P0723 Symptoms of a P0720 trouble code may include: Check Engine Light illuminated (Malfunction Indicator Lamp) Causes of this DTC may include:
