SEAT Workshop Service and Repair Manuals > Leon Mk2 > Heating, ventilation, air conditioning system | Supplementary heating | Aux. heater/heater booster | Auxiliary heater -D5S- F / -B5S- F, vehicles 05.2004?? | Start sequence | Pin assignment for 8-pin connector on heater unit (harness end)

Pin assignment for 8-pin connector on heater unit (harness end)

1 -	Terminal 30

2 -	Terminal 31

3 -	Fresh air blower -V2-

4 -	Metering pump -V54- +

5 -

Diagnosis

6 -	Criterion for supplementary heating

7 -	Pre-selection clock -E111-

8 -

Diagnosis

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