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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 452 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B001A or B001B: Seat Belt Retractor Pretensioner Deployment Loop >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

During a side or frontal crash of sufficient force the inflatable restraint sensing and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the seat belt retractor pretensioner. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.

A shorting bar used within the seat belt retractor pretensioner connector which will short together both seat belt retractor pretensioner high and low circuits when the connector is disconnected, this will help to prevent unwanted deployment of the inflator module during servicing.

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