P0725 MERCEDES-BENZ – Engine Speed Sensor Input Circuit Malfunction

P0725 MERCEDES-BENZ Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0725 MERCEDES-BENZ Possible Causes

Fualty Crankshaft Position (CKP) Sensor,Crankshaft Position (CKP) Sensor harness is open or shorted,Crankshaft Position (CKP) Sensor circuit poor electrical connection,Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM)

P0725 MERCEDES-BENZ Description

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM).