OBD Code P0728

Engine Speed Input Circuit Intermittent

What’s mean?

OBD2 Code P0728 Definition:
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).

Symptoms

Possible sumptoms of P0728
– Engine Light ON (or Service Engine Soon Warning Light)

Possible Causes

Possible causes of P0728
– Open or shorted CKP sensor circuit condition – Poor CKP sensor electrical connection – Check communication error between the ECM and TCM – Failed CKP Sensor The Error code is generally activated on detection of the following conditions: The P0728 Codes is triggered when the TCM detected that the engine speed received from the ECM is intermittent.

Possible Solutions