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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Power Door Lock System And Vehicle Access System) >> Diagnostic Information and Procedures >> Power Door Lock Key Cylinder Switches Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector. A23D Door Latch Assembly - Driver
  3. Test for infinite resistance between the test points: Signal terminal 4 & Ground terminal 8 - The switch is in the open position.
    • If less than infinite resistance 

      Replace the component: A23D Door Latch Assembly - Driver

    • Go to next step: If infinite resistance 
  4. Test for less than 3 ohms between the test points: Signal terminal 4 & Ground terminal 8 - The switch is in the closed position.
    • If 3 ohms or greater 

      Replace the component: A23D Door Latch Assembly - Driver

    • Go to next step: If less than 3 ohms 
  5. All OK.
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