Component Testing

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Front Seat Lumbar Switch

Ignition OFF, disconnect the connector at the appropriate S65 Front Seat Lumbar Switch.
Test for less than infinite resistance between the signal terminal 3 and the low reference terminal 4 with the switch in the open position.
- If infinite resistance
  Replace the S65 Front Seat Lumbar Switch.
- Go to next step: If less than infinite resistance
Test for 520 - 575 Ω between the signal terminal 3 and the low reference terminal 4 while pressing the lumbar forward switch.
- If not between 520 - 575 Ω
  Replace the S65 Front Seat Lumbar Switch.
- Go to next step: If between 520 - 575 Ω
Test for 1325 - 1465 Ω between the signal terminal 3 and the low reference terminal 4 while pressing the lumbar rearward switch.
- If not between 1325 - 1465 Ω
  Replace the S65 Front Seat Lumbar Switch.
- Go to next step: If between 1325 - 1465 Ω
Test for 2680 - 2965 Ω between the signal terminal 3 and the low reference terminal 4 while pressing the lumbar up switch.
- If not between 2680 - 2965 Ω
  Replace the S65 Front Seat Lumbar Switch.
- Go to next step: If between 2680 - 2965 Ω
Test for 5340 - 5905 Ω between the signal terminal 3 and the low reference terminal 4 while pressing the lumbar down switch.
- If not between 5340 - 5905 Ω
  Replace the S65 Front Seat Lumbar Switch.
- Go to next step: If between 5340 - 5905 Ω
All OK.