P0332 GMC Knock Sensor 2 Circuit

Possible causes

– Faulty knock sensor
– Knock sensor circuit poor electrical connection
– Knock sensor harness is open or shorted
– Faulty Powertrain Control System (PCM)

Tech description

The P0332 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually takes care of the problem.

When is the obd code mean?

When the Powertrain Control System (PCM) determines that this frequency is less than or greater than the expected amount, a knock sensor code will set.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Possible Lack/Loss of Power

P0332 GMC OBD Code Description