Doku Polo MJ 2001, Climatronic display blinking (Solution)

Polo MJ 2001
The Climatronic display is flashing.

Cause:
Cable harnesses for the manual air conditioning system were installed in vehicles with Climatronic. The Climatronic is fully functional, but the error "00792 - Pressure switch for air conditioning F129" is displayed in the Climatronic control unit.

Solution:
Checking the connections from the Climatronic control unit to the radiator fan control unit. From T16b/2 to T14c/12 and from T 12/2 to T14c/8. If these lines are not present, they must be installed retroactively.
Removal of the T14c/3 line from the cooling fan control unit to the engine control unit.
Check if the vehicle has the F38 external temperature switch. If present, please remove them and connect the wires together.