Subaru Legacy 2004 Service Manual page 3442

HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
8. Diagnostic Procedure for Sensors
A: AMBIENT SENSOR
TROUBLE SYMPTOM:
Fan speed is not switched when the fan speed control dial is in AUTO position.
WIRING DIAGRAM:
F78
1 2
B: B280
1 2 3
8 9 10 11 12 13 14 15
21 22 23 24 25
Diagnostic Procedure for Sensors
B:
F108
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18
C:
4 5 6 7 1 2 3
16 17 18 19 20 8 9 10 11 12 13 14 15
26 27 28 29 30 20 21 22 23
AC(diag)-30
AMBIENT SENSOR
F78
F108
THROUGH
JOINT CONNECTOR
B361
BODY INTEGRATED UNIT
B: B280
C: B281
AUTO A/C
B283
CONTROL MODULE
B: B283
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
B281
4 5 6 7
16 17 18 19
24 25 26 27 28
B361
1 2 3 4 5 6
7 8 9 10 11 12 13 14
AC-00829