Mitsubishi Montero (2002-2004). Manual — part 942
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-251
STEP 18. Check harness for open circuit or short circuit to
ground between A/T control relay connector D-13 terminal
3 and PCM connector D-136 terminals 123, 124.
Q: Is the harness wire in good condition?
YES : Go to Step 19.
NO : Repair or replace the harness wire.
AC204750
CONNECTOR : D-13
AB
PCM
1
3 4
2
AC204681AD
CONNECTOR: D-136
D-136 (GR)
121 122
123
124
125 126 127 128 129 130
131 132
133
134 135
136 137 138
139 140
141
142 143
144
145
146
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-252
STEP 19. Using scan tool MB991502, check data list item
54: A/T control relay output Voltage.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991502 to data reading mode for item 54,
A/T Control Relay Output Voltage.
• The voltage should equal battery positive voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage equal to battery positive
voltage?
YES : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points
− How to Cope with
Intermittent Malfunction
NO : Replace the PCM.
ACX01539AD
MB991502
16-PIN
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-253
DTC 56: "N" Range Light System
AC100554
"N" Range Light System Circuit
AC
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-254
AC204395
CONNECTOR : C-04
AF
C-04 (B)
4
9
5
10
3
8
2
7
6
1
AC204188
CONNECTORS : D-01, D-03, D-30, D-32
D-01
D-03 (GR)
AW
D-32 (GR)
D-30
D-01,D-30
D-32
D-03
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
58
57
67
66
56
54 55
64
59
53
52
62
61
63
65
60
51
10
9
23
22
12
11
25
24
8
6 7
20
13
5
4
18
17
19
21
16
3
2
15
14
1
AC204681AC
CONNECTOR: D-134
D-134 (GR)
61 62
63 64
65 66 67 68 69 70 71 72 73
82
89
81
88
80
79
78
77
87
86
85
76
75
74
84
83
AC204191
CONNECTORS : D-208, D-212
5 6
2
4
3
1
JUNCTION BLOCK
(FRONT VIEW)
3
10
9
4
11
8
7
1
5
2
6
D-208
D-208
D-212
D-212
AS
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