Subaru Impreza 2004 Service Manual page 18

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
SUB FAN
RELAY-1
SUB FAN
RELAY-2
AIR
CONDITIONING
RELAY
COMPRESSOR
MAGNET
CLUTCH
F79
1 2
F27
5 6 7 15 16 17
10
1 2
8 11 18
3 4
9 12 13 14 19
Diagnostics for A/C System Malfunction
3
4
1
2
31
34
32
30
28
25
27
29
8
5
7
9
21
24
22
20
11
12
14
10
PRESSURE
F27 SWITCH
2
1
F79
F24
F16
F17
1 2
3 4
20 25 26 27 30
35
21
28 31
36
22 23 24
29 32 33 34
AC(diag)-16
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
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-00983