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.