2010 Cadillac CTS Sedan AWD V6-3.6L Page 136
DTC Descriptors
DTC B0052 00
- Deployment Commanded
DTC B0053 00
- Deployment Commanded With Loop DTCs Present
DTC B0055 00
- Side Airbag 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 2 of the generated signals exceed the
stored values, the SDM will cause current to flow through the appropriate deployment loops.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0052 00
* The SDM detects a frontal impact of sufficient force to warrant deployment of the frontal modules.
* The SDM detects a side impact of sufficient force to warrant deployment of a side impact module and/or roof rail module.
* The SDM has deployed the seat belt pretensioner for 3 separate deployments.
B0053 00
SDM commands inflators deployment with loop faults present.
B0055 00
* The SDM detects a frontal impact of sufficient force to warrant deployment of the frontal modules.
* The SDM detects a side impact of sufficient force to warrant deployment of a side impact module and/or roof rail module.
Action Taken When the DTC Sets
* The SDM will only set DTC B0052, or DTC B0055, or the SDM sets DTC B0053 along with DTC B0052.
* The SDM commands the AIR BAG warning lamp ON.
* The SDM records crash data.
Conditions for Clearing the DTC
* DTC B0052 can be cleared if the following conditions are met.
- Three consecutive seat belt pretensioner deployment events have not occurred.
- One frontal or side air bag deployment has not occurred.
* DTC B0052 becomes a latched DTC after 3 consecutive pretensioner deployments or 1 frontal or side air bag deployment. The DTC is a
latched DTC and cannot be cleared. Replace the SDM after following the instructions in the diagnostic test.
* DTC B0055 is a latched DTC and cannot be cleared.
Reference Information
Schematic Reference
SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation/SIR System Description
and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit
