Mitsubishi Outlander (2003+). Manual — part 559
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-51
(4) Continuity between terminal 33 and body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 20.
NO :
Go to Step 18.
STEP 18. Connector check: B-18X A/C
compressor relay connector and C-26 A/C-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 19.
NO :
Repair the connector.
AC301541CP
Connector C-26
(Harness side)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
AC301483AG
Front of
vehicle
Relay box side
1
3
2
4
B-18X
-
Connector: B-18X
AC301397
Connector: C-26
<LHD>
AY
Harness side
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
AC308735
Connector: C-26 <RHD>
AZ
Harness side
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-52
STEP 19. Check the wiring harness between
B-18X A/C compressor relay connector terminal
No.1 and C-26 A/C-ECU connector terminal
No.33.
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-104, and repair if
necessary.
•
Check the A/C compressor relay output line for
open circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
STEP 20. Check the magnetic clutch operation.
.
Q: Can the sound of the magnetic clutch (click) be
heard?
YES :
Go to Step 21.
NO :
Replace the compressor magnet clutch.
STEP 21. Check the refrigerant temperature
switch.
.
Q: Is the refrigerant temperature switch operating
properly?
YES :
Go to Step 22.
NO :
Replace the refrigerant temperature switch.
AC301483AG
Front of
vehicle
Relay box side
1
3
2
4
B-18X
-
Connector: B-18X
AC301398
Connectors: C-26, C-104 <LHD>
C-104
C-26
BK
Harness side
15
1
8
3
10
2
9
11
4
13
12
5
14
16
7
6
C-104(B)
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
AC308736
Connectors: C-26, C-104 <RHD>
C-104
C-26
AU
Harness side
15
1
8
3
10
2
9
11
4
13
12
5
14
16
7
6
C-104(B)
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-53
STEP 22. Check the refrigerant level.
Refer to
Q: Is the refrigerant level correct?
YES :
Go to Step 23.
NO :
Correct the refrigerant level (Refer to
On-vehicle Service
).
STEP 23. Check the A/C pressure sensor
operation.
Refer to
.
Q: Is the A/C pressure sensor operating properly?
YES :
Go to Step 24.
NO :
Replace the A/C pressure sensor.
STEP 24. Connector check: A-02 A/C pressure
sensor connector and C-27 A/C-ECU connector
Q: Is the check result normal?
YES :
Go to Step 25.
NO :
Repair the connector.
STEP 25. Check the wiring harness between A-02
A/C pressure sensor connector terminal No.2
and C-27 A/C-ECU connector terminal No.11.
AC301656
Connector: A-02
AB
Harness side
3 2 1
A-02(B)
AC301397
Connector: C-27
<LHD>
AX
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC308735
Connector: C-27 <RHD>
AY
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC301656
Connector: A-02
AB
Harness side
3 2 1
A-02(B)
AC301397
Connector: C-27
<LHD>
AX
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC308735
Connector: C-27 <RHD>
AY
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-54
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-116, and repair if
necessary.
•
Check the A/C pressure sensor signal line for
open circuit.
Q: Is the check result normal?
YES :
Go to Step 26.
NO :
Repair the wiring harness.
STEP 26. Connector check: C-141 engine-ECU
connector and C-26 A/C-ECU connector
Q: Is the check result normal?
YES :
Go to Step 27.
NO :
Repair the connector.
AC301395AU
9
21
33
35
24
12
3 4
7
8
5 6
39
28
41
30
18
4243
31
1920
32
40
29
1617
38
27
15
37
36
26
14
13
25
2
1
34
23
11
10
22
Connector: C-116 <LHD>
AC308735
AP
9
21
33
35
24
12
3 4
7
8
5 6
39
28
41
30
18
4243
31
1920
32
40
29
1617
38
27
15
37
36
26
14
13
25
2
1
34
23
11
10
22
Connector: C-116
<RHD>
AC308719
Connectors: C-26, C-141 <LHD>
C-141
AP
Harness side
C-141 (GR)
C-26 (B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
C-26
Harness side
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
AC308736
Connectors: C-26, C-141 <RHD>
C-141
AV
Harness side
C-141 (GR)
C-26 (B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
C-26
Harness side
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
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