SEAT Workshop Service and Repair Manuals > Leon Mk2 > Heating, ventilation, air conditioning system | Heating and air conditioning | Heating | Heating controls: operation, removing and fitting | Control unit for heating and fresh air connectors | Pin allocation for the multi-connectors on the rear of the control unit for heating and fresh air

Pin allocation for the multi-connectors on the rear of the control unit for heating and fresh air

16-pin connector is vacant.

Electrical connector, 5-pin, T5

1 -	3rd blower speed

2 -	2nd blower speed

3 -	1st blower speed

4 -	4th blower speed

5 -	Terminal X

Electrical connector, 20-pin, T20 c

3 -	fresh air and air recirculation flap servomotor -V154-

6 -	fresh air and air recirculation flap servomotor -V154-

8 -	Rear windscreen

11 -	Heated driver seat regulator -E94- (optional equipment)

15 -	Heated passenger seat regulator -E95- (optional equipment)

16 -	Heater/heat output switch -E16-

18 -	Terminal 30

19 -	Terminal 15

20 -	Terminal 31