C0056 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C0056 – ‘G’ Sensor Signal

 

C0056 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

C0056 Possible Causes

 

Faulty ‘G’ Sensor,’G’ Sensor harness is open or shorted,’G’ Sensor circuit poor electrical connection

 

C0056 Description

 

The Engine Control Module (ECM) monitors the ‘G’ Sensor. The ECM sets the OBDII code when the ‘G’ Sensor is not to factory specifications.