DTC B0052
Diagnostic Instructions
DTC Descriptor
DTC B0052: Deployment Commanded
Circuit/System Description
The inflatable restraint sensing and diagnostic module (SDM) contains a sensing device that converts vehicle velocity changes into an 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 deployment loops, deploying the air bags and/or pretensioners causing DTC B0052 to set.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
| • | The SDM detects a frontal impact of sufficient force to warrant deployment of the frontal air bags. |
| • | The SDM detects a side impact of sufficient force to warrant deployment of a side impact air bag and/or roof rail air bag. |
| • | The SDM has deployed the seat belt pretensioner for 3 separate deployments. |
Action Taken When the DTC Sets
The SDM commands the AIR BAG indicator ON via serial data communications.
Conditions for Clearing the DTC
DTC B0052 is a latched code. The code cannot be cleared with the scan tool. Replacement of the SDM is required.
Reference Information
Schematic Reference
SIR Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
Circuit/System Verification
Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected.
Verify that DTC B0052 is not set.
| ⇒ | If DTC is set, replace the SDM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming
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