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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Power Door Lock System And Release Systems) >> Diagnostic Information And Procedures >> DTC B2494: Liftgate Handle Switch Circuit - Short To Ground (With TB5) >> Component Testing
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Component Testing

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: S46B Liftgate Unlatch Switch
  3. Test for infinite resistance between the test points: Signal terminal 1 & Low Reference terminal 2 - Switch Not Pressed
    • If less than infinite resistance 

      Replace the component: S46B Liftgate Unlatch Switch

    • Go to next step: If infinite resistance 
  4. Test for less than 3 ohms between the test points: Signal terminal 1 & Low Reference terminal 2 - Switch - Pressed
    • If 3 ohms or greater 

      Replace the component: S46B Liftgate Unlatch Switch

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