LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B3140, B3145, B3150, or B3155: Doors Lock/Unlock Switch >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Door Lock Switch

  1. Ignition OFF, disconnect the harness connector at the appropriate S13 Door Lock Switch.
  2. Test for infinite resistance between the signal terminal 2 and the ground terminal 4 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S13 Door Lock Switch.

    • If infinite resistance 
  3. Test for infinite resistance between the signal terminal 3 and the ground terminal 4 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S13 Door Lock Switch

    • If infinite resistance 
  4. Test for less than 2 Ω between the signal terminal 2 and the ground terminal 4 with the switch in the Lock position.
    • If 2 Ω or greater 

      Replace the S13 Door Lock Switch.

    • If less than 2 Ω 
  5. Test for less than 2 Ω between the signal terminal 3 and the ground terminal 4 with the switch in the Unlock position.
    • If 2 Ω or greater 

      Replace the S13 Door Lock Switch.

    • If less than 2 Ω 
  6. All OK
scientia non olet · About LEMON Manuals