Test Step 2

Testing connecting lines 6 and 10






Adapter






a Plug from harness in-car sensor
b Additional line from adaptor
c Bridge






Wiring diagram for test step 2 with adaptor:
3 Temperature dial
4 Pushbutton switch unit
a Defrosting
b Overall ventilation
c Normal setting (air conditioning on)
d EC (air conditioning off)
e Off
5 Blower switch
6 Temperature sensor for heat exchanger
7 In-car temperature sensor
9 Electronic switchgear for temperature control