Component Testing

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Sunroof Switch

Static Test

Ignition OFF, disconnect the harness connector at the S72 Sunroof Switch.
Test for 3.3-4.0k Ω between the control terminal 4 and the low reference terminal 5.
- If not between 3.3-4.0k Ω
  Replace the S72 Sunroof Switch.
- If between 3.3-4.0k Ω
Test for 390-480 Ω between the control terminal 4 and the low reference terminal 5 while pressing the open switch while pressing the open switch.
- If not between 390-480 Ω
  Replace the S72 Sunroof Switch.
- If between 390-480 Ω
Test for 88-107 Ω between the control terminal 4 and the low reference terminal 5 while pressing the express open switch.
- If not between 88-107 Ω
  Replace the S72 Sunroof Switch.
- If between 88-107 Ω
Test for 1.6-2.0k Ω between the control terminal 4 and the low reference terminal 5 while pressing the close switch.
- If not between 1.6-2.0k Ω
  Replace the S72 Sunroof Switch.
- If between 1.6-2.0k Ω
Test for 840-1030 Ω between the control terminal 4 and the low reference terminal 5 while pressing the express close switch.
- If not between 840-1030 Ω
  Replace the S72 Sunroof Switch.
- If between 840-1030 Ω
All OK.