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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 67 (HVAC System - Manual) >> Diagnostic Information and Procedures >> Blower Motor Malfunction >> Component Testing >> Blower Switch

Blower Switch

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the harness connector at the S94 Blower Motor Switch.
  2. Test for infinite resistance between the ground terminal 3 and each control terminal with the blower switch in the OFF position.
    • If less than infinite resistance 

      Replace the S94 Blower Motor Switch.

    • If infinite resistance 
  3. Test for less than 2 Ω between the ground terminal 3 and each control terminal with the switch in the appropriate position.
    • If 2 Ω or greater 

      Replace the S94 Blower Motor Switch.

    • If less than 2 Ω 
  4. All OK.
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