Test Step 4

Testing temperature dial (3) and connecting lines 5 and 6






Control panel






Wiring diagram for test step 4 with adaptor:
3 Temperature dial
4 Pushbutton switch unit
a Defrosting
b Overall ventilation
c Normal setting (air conditioning on)
d EC (air conditioning on)
e Off
6 Temperature sensor for heat exchanger
7 In-car temperature sensor
9 Electronic switchgear for temperature control