P0725 GMC Engine Speed Sensor Circuit

Possible causes

– Faulty 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)

What about the obd code?

The P0725 GMC Codes is triggered when Transmission Control Module (TCM) does not receive the engine speed signal from Engine Control Module (ECM).

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0725 GMC 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).