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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Vehicle Access - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC B19C8 or B19C9 >> Component Testing

Component Testing

  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector:
    • A24D Front Side Door Outside Handle - Left
    • A24P Front Side Door Outside Handle - Right
  3. Test for infinite resistance between the test points: Signal terminal 1 & Ground terminal 5 - Not Pressed
    • If less than infinite resistance 

      Replace the component:

    • A24D Front Side Door Outside Handle - Left
    • A24P Front Side Door Outside Handle - Right
    • Go to next step: If infinite resistance 
  4. Test for less than 3 ohms between the test points: Signal terminal 1 & Ground terminal 5 - Pressed
    • If 3 ohms or greater 

      Replace the component:

    • A24D Front Side Door Outside Handle - Left
    • A24P Front Side Door Outside Handle - Right
    • Go to next step: If less than 3 ohms 
  5. All OK.
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