DTC B0052
Diagnostic Instructions
DTC Descriptor
DTC B0052 00: Deployment Commanded Malfunction
DTC B0052 56: Deployment Commanded Too Many Transitions
Circuit/System Description
The inflatable restraint sensing and diagnostic module (SDM) senses vehicle impacts and provides deployment signals to the air bags and anchor and/or retractor pretensioners when warranted. The SDM sets DTC B0052 after each command for deployment. DTC B0052 will latch and not clear until after 3 commanded deployments by the SDM. And therefore the SDM has to be replaced using end of life disposal procedure.
Conditions for Running the DTC
Ignition voltage is between 9-16 V.
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 or rollover (if equipped) of sufficient force to warrant deployment of a seat side air bag and/or roof rail air bag. |
Action Taken When the DTC Sets
The SDM requests the instrument cluster to illuminate the AIR BAG indicator.
Conditions for Clearing the DTC
| • | DTC B0052 00 is a clearable DTC and may be cleared with a scan tool without replacing the SDM. |
| • | DTC B0052 56 is a latched DTC. The DTC 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
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Verify that DTC B0052 00 is not set.
[ARW-LISTFAIL]
DTC B0052 00 is set.
DTC B0052 00 is not set.
- Verify that DTC B0052 56 is not set.
[ARW-LISTFAIL]
DTC B0052 56 is set.
DTC B0052 56 is not set.
- All OK
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming
| © Copyright Chevrolet. All rights reserved |
