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HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
C: COMPARTMENT TEMPERATURE DOES NOT CHANGE, OR A/C SYSTEM
DOES NOT RESPOND PROMPTLY
TROUBLE SYMPTOM:
• The compartment temperature does not change. (Cold air does not come out.)
• The A/C system does not respond quickly.
WIRING DIAGRAM:
A/C RELAY HOLDER
20A
20A
MAIN FAN
RELAY 1
MAIN FAN
RELAY 2
SUB FAN
RELAY 1
SUB FAN
RELAY 2
A/C RELAY
COMPRESSOR
MAGNET
SWITCH
F79
F16
F17
1 2
1 2
1 2
12 13 14 15 16 17 18 19 20 21 22 23 24
3 4
F129
1
2
12
3
7
8
9
13
4
5
10
6
11
Diagnostics for A/C System Malfunction
F27
F/B No.17
3
4
F/B No.18
1
2
31
34
32
30
28
25
27
29
8
5
7
9
21
24
22
20
10
9
7
11
PRESSURE
SWITCH
F129
2
1
F79
F24
F45
B:
3 4
5
6 7
8 9 10 11
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
B:
B135
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
16
17 18 19
20
21 22 23
24
25
26 27
28
29
30
31
32
33
34 35
AC(diag)-16
IGNITION SWITCH
SBF-4
F45
B62
B:
B135
AUTO A/C
ECM
B:
B283
CONTROL
C:
B136
MODULE
B283
5 6
7
10
1
2
8
11
3
4
9
12 13 14
RELAY HOLDER
C:
B136
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
16
17 18 19 20
21 22 23
24
25
26
27
28
29
30
31
32
33 34 35
BATTERY
SBF-1
MAIN FAN MOTOR
1
M
2
3
4
F17
SUB FAN MOTOR
1
M
2
3
4
F16
E
F27
26 27
15
16
17
20
25
30
35
18
21
28
31
36
19
22
23
24
29
32 33
34
AC-01605
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