Mitsubishi Montero (2002-2004). Manual — part 904
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-99
STEP 4. Check harness for open circuit or short circuit to
ground between transmission range switch connector C-
04 terminal 7 and junction block connector D-212 terminal
9.
Q: Is the harness wire in good condition?
YES : Go to Step 5.
NO : Repair or replace the harness wire.
STEP 5. Using scan tool MB991502, check data list item 61:
Transmission Range Switch.
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 61,
Transmission Range Switch.
• Move the selector lever to "P," "R," "N," "D" and sport
mode positions and confirm that the selected transmis-
sion ranges match the positions shown on scan tool
MB991502. (Sport mode is indicated as "D" on scan tool
MB991502.)
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?
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.
AC204395
CONNECTOR : C-04
AF
C-04 (B)
4
9
5
10
3
8
2
7
6
1
AC204173
CONNECTOR : D-212
AZ
3
10
9
4
11
8
7
1
5
2
6
JUNCTION BLOCK
(FRONT VIEW)
ACX01539AD
MB991502
16-PIN
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-100
STEP 6. Check the transmission range switch.
Measure the resistance between the terminals for each selec-
tor position as indicated in the table above.
Q: Does the resistance measure less than 2 ohms for each
selector position?
YES : Go to Step 7.
NO : Replace the transmission range switch. Refer to
GROUP 23B, Transmission
STEP 7. Check transmission range switch connector C-04
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connector and terminals in good condition?
YES : Go to Step 8.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
TRANSMISSION
RANGE
TERMINAL
CONNECTION OF
TESTER
SPECIFIED
CONDITION
P
1
− 7
Less than 2 ohms.
R
7
− 8
N
2
− 7
D
3
− 7
ACX01187AD
P
R
N
D
AC204395
CONNECTOR : C-04
AF
C-04 (B)
4
9
5
10
3
8
2
7
6
1
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-101
STEP 8. Measure the transmission range switch output
voltage at PCM connector D-134 by backprobing.
(1) Do not disconnect connector D-134.
(2) Turn the ignition switch to the "ON" position.
(3) Move the selector lever to the "P" position.
(4) Measure the voltage between terminal 66 and ground by
backprobing.
• The voltage should measure battery positive voltage.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the voltage measure battery positive voltage?
YES : Go to Step 13.
NO : Go to Step 9.
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
AC204918 BF
D-134 HARNESS CONNECTOR :
HARNESS SIDE
76
85
65
72
71
73
82
75
81
74
63 64
66
70
69
68
67
78
87
79
88 89
80
77
86
62
61
83 84
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-102
STEP 9. Check PCM connector D-134 and intermediate
connector E-114 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 10.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
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
AC204176
CONNECTOR : E-114
BD
38
28
16
33
22
10
31
19
7
1
18
30
29
17
5
6
21
20
32
8
2
9
25
13
3
24
23
3435
1112
27
26
3637
14
4
15
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