Service Information

Volt

DTC B0052

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B0052 00: Deployment Commanded Malfunction

DTC B0052 56: Deployment Commanded Too Many Transitions

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

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Vehicle in Service Mode. With a scan tool, verify that DTC B0052 00 is not set.

⇒	*If DTC B0052 00 is set.*

Clear the DTC.

⇓	*If DTC B0052 00 is not set.*

Verify that DTC B0052 56 is not set.

⇒	*If DTC B0052 56 is set.*

Replace the K36 SDM.

⇓	*If 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 control module replacement, programming and setup