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.
What are the symptoms of a p0720 trouble code?
Symptoms of a P0720 trouble code may include: Delayed shifts Speedometer not working Check Engine Light illuminated (Malfunction Indicator Lamp)
What is the speed sensor code on my ml 350?
I scanned when I got home and got a P0721 Generic Pending Output Speed Sensor Circuit range/performance code. It’s a 2009 ML 350 w/66k miles and I do have a basic warranty sill active, but it covers the major power-train and engine parts.
Is there a problem with the speed sensor?
This is usually a problem with a speed sensor on the transmission conductor plate. Unfortunately, if this is the problem, the conductor plate replacement is pretty much a dealer-only job because it contains the TCU which requires SCN coding (i.e. encrypting the VIN into it). Did you ever find a solution?
Where is the p0720 output speed sensor located?
Code P0720 identifies the problem as the output speed sensor. The output speed sensor is mounted on the output shaft of the transmission and sends signals to the engine computer, which then controls the speedometer.
How do you replace an output speed sensor?
Install the replacement output sensor in place and screw into the transmission case. Do not over-tighten. Replace the bolt and tighten. Reconnect the wire harness. The harness will click into place when it’s secured. The sensor is now replaced.
What does code p0720 mean on Check Engine light?
When the “check engine” light appears in your vehicle, it’s best to connect your scan tool and find the exact code triggering the problem. Code P0720 identifies the problem as the output speed sensor.
I scanned when I got home and got a P0721 Generic Pending Output Speed Sensor Circuit range/performance code. It’s a 2009 ML 350 w/66k miles and I do have a basic warranty sill active, but it covers the major power-train and engine parts.