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DTC B0052

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

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 deployment command. DTC B0052 will latch and not clear 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


1. Verify that DTC B0052 00 is not set.

2. If DTC B0052 00 is set

Clear the DTC.

3. If DTC B0052 00 is not set

4. Verify that DTC B0052 56 is not set.

5. If DTC B0052 56 is set

Replace K36 Inflatable restraint sensing and diagnostic module (SDM).

6. If DTC B0052 56 is not set

7. All OK.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for SDM control module replacement, programming and setup