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Home >> Chevrolet >> 2014 >> Spark LS, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (HVAC System - Manual) >> Diagnostic Information and Procedures >> DTC B393D >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2013 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

When the body control module receives a command to activate the air conditioning system, it applies B+ to the A/C indicator control circuit causing the indicator to illuminate.

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