2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 193

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 193

B0052

* 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.

Action Taken When the DTC Sets

* The SDM requests the instrument panel cluster (IPC) to illuminate the Service Air Bag indicator.

* The SDM records crash data.

Conditions for Clearing the DTC

After an air bag deployment or 3 separate pretensioner deployments the DTC becomes latched 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)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Important: The seat belt pretensioners may deploy for impacts that are not severe enough to warrant frontal or side air bag deployment.

The SDM is capable of sustaining 3 pretensioner deployment events, or one frontal or side deployment event. After the maximum number

of deployments has occurred, DTC B0052 sets and becomes a latched code, which cannot be cleared.

1. Ignition OFF, verify no signs of inflator module or pretensioner deployment exist.

瀚慖f any signs of deployment exist, refer to Repairs and Inspections Required After a Collision (See: Body and Frame/Repairs and

Inspections Required After a Collision/Service and Repair/Supplemental Inflatable Restraints).

2. Verify DTC B0052 is not set.

瀚慖f DTC B0052 is set, clear DTCs. If the DTC sets, replace the SDM.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming

B0053

DTC B0052 or B0053

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.