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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Power Door Lock System) >> Diagnostic Information and Procedures >> DTC B1474 or B3849 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector:A24D Door Handle Assembly - Driver ExteriororA24P Door Handle Assembly - Passenger Exterior
  3. Test for infinite resistance between the test points:Signal terminal 1 & Ground terminal 5 - B27 Door Handle Switch - Not Pressed
    • If less than infinite resistance 

      Replace the component:A24D Door Handle Assembly - Driver ExteriororA24P Door Handle Assembly - Passenger Exterior

    • Go to next step: If infinite resistance 
  4. Test for less than 3 ohms between the test points:Signal terminal 1 & Ground terminal 5 - B27 Door Handle Switch - Pressed
    • If 3 ohms or greater 

      Replace the component:A24D Door Handle Assembly - Driver ExteriororA24P Door Handle Assembly - Passenger Exterior

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