Mitsubishi Outlander (2003+). Manual — part 556
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-39
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.
STEP 22. Check the refrigerant level.
.
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.
AC301483AG
Front of
vehicle
Relay box side
1
3
2
4
B-18X
-
Connector: B-18X
AC301398
Connectors: C-26, C-104
C-104
C-26
AQ
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-40
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.
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.
AC301656
Connector: A-02
AB
Harness side
3 2 1
A-02(B)
AC301397
Connector: C-27
AS
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
AS
C-27(B)
Harness side
8
2
10 9
1
5
3
4
6
7
20191817161514131211
AC301395AG
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
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-41
STEP 26. Connector check: C-134 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.
STEP 27. Check the wiring harness between
C-134 engine-ECU connector terminal No.24 and
C-26 A/C-ECU connector terminal No.32.
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-104, and repair if
necessary.
•
Check the communication line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 28.
NO :
Repair the wiring harness.
AC301398
Connectors: C-26, C-134, C-135
C-134
C-135
AR
C-135
Harness side
22
9
14
15
2 1
3
16
1918
5 4
17
6
21
7
20
8
25
12
10
23
11
24
26
13
JAE-E
39
31
45
37
42
34
40
41
32
33
4443
35
36
46
38
JAE-E
C-134
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
C-26
AC301398
Connectors: C-26, C-104, C-134
C-134
BB
Harness side
22
9
14
15
2 1
3
16
1918
5 4
17
6
21
7
20
8
25
12
10
23
11
24
26
13
JAE-E
C-134
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
C-26
C-104(B)
15
1
8
3
10
2
9
11
4
13
12
5
14
16
7
6
C-104
TROUBLESHOOTING
AUTOMATIC AIR CONDITIONER
55B-42
STEP 28. Check the wiring harness between
C-135 engine-ECU connector terminal No.45 and
C-26 A/C-ECU connector terminal No.34.
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-104, and repair if
necessary.
•
Check the communication line for open circuit.
Q: Is the check result normal?
YES :
Replace the A/C-ECU or engine-ECU.
NO :
Repair the wiring harness.
AC301398
Connectors: C-26, C-104, C-135
C-135
BC
C-135
Harness side
39
31
45
37
42
34
40
41
32
33
4443
35
36
46
38
JAE-E
C-26(B)
29
21
35
27
24
323130
22
23
33
25
34
26
36
28
C-26
C-104(B)
15
1
8
3
10
2
9
11
4
13
12
5
14
16
7
6
C-104
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