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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 333 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Power Door Lock Key Cylinder Switches Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 GMC Acadia. 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 3 - The switch is in the open position.
    • If less than infinite resistance 

      Replace the component: A23D Door Latch Assembly - Driver

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

      Replace the component: A23D Door Latch Assembly - Driver

    • If less than 3 Ω 
  5. All OK.
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