B0053 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B0053 – Deployment Commanded

 

B0053 Possible Symptoms

 

Air Bag Warning Light ON

 

B0053 Possible Causes

 

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

 

B0053 Description

 

The Inflatable Restraint Sensing and Diagnostic Module (SDM) contains sensing devices that converts vehicle velocity changes to electrical signals. The SDM processes the generated electrical signals and compares them to values stored in memory. When the generated signals exceed the stored values, the SDM performs additional signal processing and compares the generated signals to signals stored in memory. When 2 of the generated signals exceed the stored values, the SDM will cause current to flow through the inflator modules, deploying the inflator modules, and causing DTC B0053 to set.