Operation CHARM: Car repair manuals for everyone.

Test Step 8








Testing control voltage recirculated air and connecting lines 1 and 12






Control panel






Wiring diagram for test step 8 with adaptor:
4 Pushbutton switch unit
a Defrosting
b Overall ventilation
c Normal setting (air conditioning on)
d EC (air conditioning off)
e Off
9 Electronic switchgear for temperature control
10 Fusebox