Test L

CHECKING SWITCHOVER VALVES FOR MAIN AIR, CENTER NOZZLE, DEFROSTER NOZZLE AND LEGROOM FLAPS:

Wiring Diagram:

Wiring Diagram Reference:
1 Series resistance group
2 Temperature switch (cold engine lock)
3 Temperature dial
4 Pushbutton switching unit
a Defrosting
b Top + bottom
c Normal (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 switching unit for temperature control
10 Fuse box
a Fuse 2: 16 amps
b Fuse 7: 8 amps
c Fuse 6: 16 amps
11 Monovalve
12 Blower motor
13 Switchover valve for center and defroster nozzle flaps (short stroke)
14 Switchover valve for legroom flaps
15 Switchover valve for defroster nozzle flaps (long stroke)
16 Switchover valve for main air flaps
19 Electronic switching unit blower control
20 Temperature switch 100 °C for auxiliary fan
21 Relay auxiliary fan
22 Temperature switch 52 °C for auxiliary fan
25 Auxiliary fan
26 Electromagnetic clutch refrigerant compressor
27 Pressure switch refrigerant compressor
28 Relay refrigerant compressor
29 ETR switch
30 Recirculating pump
a Line not connected