Volkswagen Workshop Service and Repair Manuals > Polo Mk3 > Heating, ventilation, air conditioning | Heating, air conditioning | Self diagnosis, V.A.G Inspection Service | Self-diagnosis of Climatronic, vehicles 10.99 ? | Diagnosis functions with vehicle diagnosis, testing and information system VAS 5051A or vehicle diagnosis and service informa

Final control diagnosis 03

Note

Final control diagnosis must be carried out with engine stationary, ignition switched on and Climatronic switched off.

–	To do this, switch Climatronic off via push button for reducing blower speed.

Note

t	For results to be definitive, final control diagnosis must be carried out at an ambient temperature of at least 12° as displayed on control and display panel.

t	Climatronic is not regulated during final control diagnosis.

t	If necessary, final control diagnosis can be repeated several times.

–	Select vehicle system → Chapter.

–	Press “03 Final control diagnosis”-arrow- on the display.

The following tests will be carried out:

t	Indication of display of operating and display unit for Climatronic air conditioning system -E87- → Chapter.

t	Functional test of the 4 control motors.

t	Circuit to fresh air blower -V2- is tested.

t	Switch sequence of control unit for air conditioning system magnetic coupling -N25- is tested.

t	All sensors are checked.

The tests will be completed in about 30 seconds.

Note

After completing final control diagnosis, read fault memory → Chapter.