P0720 MERCEDES-BENZ – Output Speed Sensor Error

P0720 MERCEDES-BENZ Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Speedometer improper reading,Possible shifting problems

P0720 MERCEDES-BENZ Possible Causes

Faulty Speed Sensor,Speed Sensor harness is open or shorted,Speed Sensor circuit poor electrical connection

P0720 MERCEDES-BENZ Description

The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.