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Home >> Chevrolet >> 2013 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 183 (Hybrid/EV Control System) >> Diagnostic Information and Procedures >> Drive Mode Select Switch Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Vehicle OFF, disconnect the harness connector at the S126 Drive Mode Switch.
  2. Test for infinite resistance between the signal terminal 1 and the ground terminal 4 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S126 Drive Mode Switch.

    • If infinite resistance 
  3. Test for less than 2 Ω between the signal terminal 1 and the ground terminal 4 with the switch in the closed position.
    • If 2 Ω or greater 

      Replace the S126 Drive Mode Switch.

    • If less than 2 Ω 
  4. All OK.
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