CLIMATRONIC A/C System Components, Checking And Adjusting
WARNING: This page is about a different car, the 2014 Volkswagen Jetta, 2013 Volkswagen Jetta, 2012 Volkswagen Jetta, and 2011 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Select "Guided Fault Finding" on the Vehicle Diagnostic Tester
After all control modules have been interrogated:
-- Press "GO TO".
-- Select "Function/component selection".
-- Select "Body".
-- Select "heating, ventilation, air conditioning (Repair Group 01; 80 to 87)".
-- Select "01 - On Board Diagnostic (OBD) capable systems".
-- Select "Climatronic" or "Climatic".
-- Select "Functions"
-- "Basic setting"
-- "Code Climatronic Control Module".
-- "Check cooling performance."
-- "Read measured value block."