Subaru SVX 1992 Manual page 1044

4-7 IT11BOI
AUTOMATIC AIR CONDITIONING SYSTEM
B : TROUBLE CODE (12/22) - Check ambient sensor circuit.
CONTENT OF DIAGNOSIS :
TROUBLE SYMPTOM :
12 : Open circuit
Fan speed, outlets and inlets are not switched when
22 : Short circuit
AUTO or ECON switch is ON .
1 Check ambient sensor .
Not OK
b,
1 [
Replace ambient sensor .
OK
OK
Repair auto amplifier terminal poor contact . (Replace
2 Check input signals for ambient sensor.
auto amplifier .)
Not OK
T 0 Replace and recheck.
Not O
I
I K
3 Check output signals for auto amplifier .
OK
Repair harness.
Ambient
sensor
F38 F7 B71
B78 i10
b : 116
2 b2
b" Auto amp.
B19
ill
F38
ill
00
i10
f7
1 2 9 011 21314 5 617 8
111 2 7 4
151
17 81920
10 112 31<1516117189 0
7 8 91011 1 11 1121 13T
C4-703
Fig . 221
110