13364 - Service Update. Replace the passenger side front air bag. These vehicles may have a condition in which the passenger side front air bag will not function as designed due to an electrical connector not being properly engaged. This condition may set diagnostic trouble code (DTC) B0020 ? Passenger Frontal Deployment Loop Stage 2 Resistance Above Threshold. If this occurs, the Sensing and Diagnostic Module (SDM) will request the instrument cluster to illuminate the air bag malfunction indicator lamp. If a crash event occurs the SDM will attempt air bag deployment, but, if the mating terminals do not make contact, the secondary stage of the passenger side front air bag will not deploy, increasing the risk of injury to the occupant.