B0051

CIRCUIT DESCRIPTION
The Inflatable Restraint Sensing and Diagnostic Module (SDM) contains sensing device (accelerometer) that converts vehicle velocity and convert this to a electrical signal. The SDM compares this electrical signal to a value stored in memory. When the generated signal exceeds the stored value, the SDM performs additional signal processing and compares the generated signals to values stored in memory. When two of the generated signals exceed the stored values, the SDM will cause current to flow through the inflator modules, deploying the air bags and causing DTC B0051 to set.

This DTC is set when the inflatable restraint sensing and diagnostic module (SDM) has commanded an air bag deployment with no faults present.

CONDITIONS FOR RUNNING THE DTC
Ignition 1 voltage must be present.

CONDITIONS FOR SETTING THE DTC
Ignition voltage must be present and the inflatable restraint sensing and diagnostic module (SDM) must have commanded an air bag deployment.

ACTION TAKEN WHEN THE DTC SETS
^ The SDM sets a DTC B0051.
^ The SDM commands the AIR BAG warning lamp ON via Class 2 serial data.
^ The SDM records crash data.

CONDITIONS FOR CLEARING THE DTC
DTC B0051 is a latched code. You cannot clear a latched code. Replace the SDM after following the instructions in the diagnostic table.

TEST

Steps 1-6: