LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2019 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Power Seat System) >> Diagnostic Information and Procedures >> Memory Seat Feature Malfunction >> Component Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Testing

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

Driver Seat Memory Switch

  1. Ignition OFF, disconnect the harness connector at the S47D Seat Memory Switch - Driver.
  2. Test for infinite resistance between each signal terminal listed below and the low reference terminal 1 with the switch in the open position.
    • Terminal 5
    • Terminal 6
    • If less than infinite resistance 

      Replace the S47D Seat Memory Switch - Driver.

    • Go to next step: If infinite resistance 
  3. Test for less than 4 Ω between the signal terminal 5 and the low reference terminal 1 while pressing the Memory SET button.
    • If 4 Ω or greater 

      Replace the S47D Seat Memory Switch - Driver.

    • Go to next step: If less than 4 Ω 
  4. Test for 573 - 701 Ω between the signal terminal 6 and the low reference terminal 1 while pressing the Memory 1 button.
    • If not between 573 - 701 Ω 

      Replace the S47D Seat Memory Switch - Driver.

    • Go to next step: If between 573 - 701 Ω 
  5. Test for 1800 - 2201 Ω between the signal terminal 6 and the low reference terminal 1 while pressing the Memory 2 button.
    • If not between 1800 - 2201 Ω 

      Replace the S47D Seat Memory Switch - Driver.

    • Go to next step: If between 1800 - 2201 Ω 
  6. Test for 5.52k - 6.73 kΩ between the signal terminal 6 and the low reference terminal 1 while pressing the Exit button.
    • If not between 5.52k - 6.73 kΩ 

      Replace the S47D Seat Memory Switch - Driver.

    • Go to next step: If between 5.52k - 6.73 kΩ 
  7. All OK.