B0020 CHEVROLET – Passenger Instrument Panel Air Bag Deployment Loop Stage 2

B0020 CHEVROLET Possible Symptoms

Air Bag Warning Light ON

B0020 CHEVROLET Possible Causes

Faulty Passenger Frontal Module,Passenger Frontal Module harness is open or shorted,Passenger Frontal Module circuit poor electrical connection,Faulty Sensing and Diagnostic Module (SDM)

B0020 CHEVROLET Description

During a side or frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy an air bag or pretensioner. There are 2 shorting bars which will short together control circuits, when the connector is disconnected. This will help to prevent unwanted deployment of the air bag or pretensioner during servicing.