Subaru Impreza 2003 Service Manual page 2778

DIAGNOSTICS FOR A/C SYSTEM MALFUNCTION
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
C: COMPARTMENT TEMPERATURE IS NOT CHANGED OR A/C SYSTEM DOES
NOT RESPOND QUICKLY
WIRING DIAGRAM:
• FOR LHD DOHC TURBO MODEL
AIR CONDITIONING RELAY HOLDER
30A
30A
MAIN FAN
RELAY-1
MAIN FAN
RELAY-2
SUBFAN
RELAY-1
SUBFAN
RELAY-2
AIR
CONDITIONING
RELAY
COMPRESSOR
MAGNET
CLUTCH
F79
1 2
F27
5 6 9 13 14
1 2
7 10 15
3 4
8 11 12 16
3
4
1
2
26
28
27
25
23
21
22
24
7
5
6
8
18
20
19
17
10
11
12
9
PRESSURE
F27 SWITCH
2
1
F79
F24
F16
F17
1 2
3 4
17 21 22 25
29
18 23 26
30
19 20 24 27 28
IGNITION
SWITCH
F/B No.17
F/B No.18
F45
B62
A: B134 A:
ECM
E: B:
B84
B: B283
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
A: B134
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15
16 17 18 19 20 21 22
AC-16
BATTERY
SBF-4 SBF-1
1
2
3
4
F17
1
2
3
4
F16
B282 AUTO A/C
CONTROL
E
B283 MODULE
F45
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
E:
B84
1 2 3 4 5 6 7 8
10 11 12 13 14 15 16 17 18 19 20
22 23 24 25 26 27 28 29 30
MAIN FAN
MOTOR
M
SUB FAN
MOTOR
M
9
21
31
AC-00671