Test Step 3 - Verify the Sunroof Control Module is Active on the Bus

• Turn the ignition ON.
• With the scan tool, select network diagnostics.
• Verify the sunroof control module is active on the bus.

Is the sunroof control module active on the bus?

Yes 

• Go to Test Step 4 Test Step 4 - Test For Additional Communication Related DTCs .

No 

• Perform the No Response diagnostic procedure. Refer to NO RESPONSE FROM SUNROOF MODULE (2009 - 2010) or NO RESPONSE FROM SUNROOF MODULE (2011 & UP) .