Circuit/System Verification

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.

Ignition ON/Vehicle in Service Mode.
Verify DTC U0169 or U1121 are not set.
- If DTC U0169 or U1121 are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If DTC U0169 or U1121 are not set
Verify the K9 Body Control Module scan tool Sunroof Switch parameter changes from Inactive to Close, Open, Stop, Vent when pressing the Sunroof Switch.
- If the parameters do not change
  Replace the A103 Roof Console.
- Go to next step: If the parameters change
Command the sunroof to open and close by pressing the appropriate switch on the A103 Roof Console.
- If the sunroof does not open or close
  Refer to Circuit/System Testing - Power Sunroof Malfunction.
- Go to next step: If the sunroof opens and closes to the vent position
Verify the K9 Body Control Module scan tool Sunshade Switch parameter changes from Inactive to Open, Express Open, Close and Express Close when pressing the Sunshade Switch.
- If the parameters do not change
  Replace the A103 Roof Console.
- Go to next step: If the sunshade opens and closes
Command the sunshade to open and close by pressing the appropriate switch on the Sunshade Switch.
- If the sunshade does not open or close
  Refer to Circuit/System Testing - Power Sunshade Malfunction.
- Go to next step: If the sunshade opens and closes
All OK.