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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 Verification

Circuit/System Verification

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.
  1. Ignition ON.
  2. Verify the air conditioning indicator turns ON and OFF when commanding the BCM A/C Indicator On and Off with a scan tool.
    • If the air conditioning indicator does not turn On or Off 

      Refer to Circuit/System Testing below

    • If the air conditioning indicator turns On and Off 
  3. All OK.