Mitsubishi L200. Manual — part 856
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-40
STEP 9. Connector check: A-120 A/C condenser
fan motor connector
AC509975AK
Harness side
Connector: A-120
A-120 (B)
Q: Is the check result normal?
YES :
Go to Step 10.
NO :
Repair the connector.
STEP 10. Resistance measurement at the A-120
A/C condenser fan motor connector.
AC509975AK
Harness side
Connector: A-120
A-120 (B)
(1) Disconnect the connector, and measure at the
wiring harness side.
AC403234
Connector A-120
(Harness side)
CH
(2) Measure the resistance between terminal 1 and
body earth.
OK: Continuity (Less than 2
Ω)
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Go to Step 11.
STEP 11. Check the wiring harness between A-
120 A/C condenser fan motor connector terminal
No.1 and body earth.
AC509975AK
Harness side
Connector: A-120
A-120 (B)
• Check the condenser fan motor earth 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 12. Check the wiring harness between A-
14X A/C condenser fan relay connector terminal
No.3 and A-120 A/C condenser fan motor
connector terminal No.2.
AC502574
AB
Connector: A-14X
Harness side
AC509975AK
Harness side
Connector: A-120
A-120 (B)
• Check the condenser fan motor power supply line
for open circuit.
Q: Is the check result normal?
YES :
Go to Step 13.
NO :
Repair the wiring harness.
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-41
STEP 13. Check the wiring harness between A-
14X A/C condenser fan relay connector terminal
No.2 and C-105 engine-ECU connector terminal
No.39.
AC502574
AB
Connector: A-14X
Harness side
AC509613 CD
Harness side
C-105 (B)
Connector: C-105 <LHD>
35
40
41
42
1817
38
39
15
16
14
3736
12
13
11
32
8
3433
9
10
30
31
7 6
29
5
4
28
3
27
2
26
1
25
19
43
2120
22
23
46
47
4544
24
48
76
52
86
62
63
64
65
66
67
68
69
70
71
72
92
95
96
93
94
89
90
91
8887
53
54
55
56
57
58
59
60
61
83
8584
8281
78
79
80
77
49
50
51
74
75
73
AC509930 CA
C-105 (B)
Connector: C-105 <RHD>
Harness side
35
40
41
42
1817
38
39
15
16
14
3736
12
13
11
32
8
3433
9
10
30
31
7 6
29
5
4
28
3
27
2
26
1
25
19
43
2120
22
23
46
47
4544
24
48
76
52
86
62
63
64
65
66
67
68
69
70
71
72
92
95
96
93
94
89
90
91
8887
53
54
55
56
57
58
59
60
61
83
8584
8281
78
79
80
77
49
50
51
74
75
73
NOTE:
AC501938AO
Connectors: C-207, C-210
Harness side
C-207
C-207
C-210
C-210
Junction block (Front view)
Harness side
AC509975AI
Connector: A-115
Prior to the wiring harness inspection, check junction
block connectors A-115, and repair if necessary.
• Check the condenser fan motor power supply 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.
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-42
Inspection Procedure 6: The Rear Window Defogger does not work
Rear Window Defogger Circuit
REAR WINDOW
DEFOGGER RELAY
REAR WINDOW
DEFOGGER SWITCH
REAR WINDOW
DEFOGGER
A/C-SWITCH
MODULE
FUSIBLE
LINK
IGNITION
SWITCH (IG2)
20
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
AC900619
CIRCUIT OPERATION
If the rear window defogger does not operate when
the rear window defogger switch is turned on, the
rear window defogger relay system may be defec-
tive.
PROBABLE CAUSES
• Malfunction of the A/C switch module
• Malfunction of the rear window defogger relay
• Damaged the wiring harness or connectors
• Malfunction of the rear window defogger
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