Mitsubishi Montero Sport (2004+). Manual — part 639
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-121
STEP 11. Check the harness for damage between stoplight
switch connector C-66 terminal 3 and PCM connector C-92
terminal 123.
Q: Is the harness wire in good condition?
YES : Go to Step 12.
NO : Repair or replace the harness wire.
AC309389
CONNECTOR: C-66
C-66 (B)
AB
1
3 4
2
AC202317
PCM
120
107
119
106
129 130
118
105
117
114115116
126127128
104
111
103
112
108
101102
109110
121122123
124
113
125
CONNECTOR: C-92
C-92 (GR)
AB
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-122
STEP 12. Using scan tool MB991958, check data list item
26: Stoplight Switch.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to data reading mode.
• Item 26: Stoplight Switch.
• When the brake pedal is depressed, the display on
scan tool MB991958 should be "ON."
• When the brake pedal is not depressed, the display
on scan tool MB991958 should be "OFF."
(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 00E, How to Use
Troubleshooting/Inspection Service Points
− How to
Cope with Intermittent Malfunction
.
NO : Replace the PCM.
AK303629AB
MB991911
MB991827
MB991824
16-PIN
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-123
DTC 27 (P0705): Transmission Range Switch System (Open Circuit)
Transmission Range Switch System Circuit
AC309397
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-124
.
CIRCUIT OPERATION
• Battery positive voltage is applied to the transmis-
sion range switch (terminal 7) when the ignition
switch is turned "ON."
• Battery positive voltage is applied to the PCM
(terminal 101) when the selector lever is in the
"P" range. The PCM judges that the selector
lever is in the "P" range when the battery positive
voltage is applied.
• Battery positive voltage is applied to the PCM ter-
minal 108 (121, 102, 109, 122 or 110) when the
selector lever is in the "R" range ("N," "D," "3," "2"
or "L" range). The PCM judges that the selector
lever is in the "R" range ("N," "D," "3," "2" or "L"
range) when the battery positive voltage is
applied.
.
AC202393
4
9
5
10
3
8
2
7
6
1
CONNECTOR: B-01
<RWD>
<4WD>
B-01 (B)
B-01 (B)
AB
AC202392
4
3
10 11
9
8
5
12
1
6
2
7
22
9 10
20
19
6 7 8
21
17
1516
5
14
12 13
3
2
4
18
11
1
49
48
50
46
45
44
41 42 43
47
CONNECTORS: C-03, C-30, C-96
C-96
C-30
C-03
C-96
C-30
C-03
AB
AC202317
PCM
120
107
119
106
129 130
118
105
117
114115116
126127128
104
111
103
112
108
101102
109110
121122123
124
113
125
CONNECTOR: C-92
C-92 (GR)
AB
AC202365
JUNCTION BLOCK (REAR)
2
1
M
4
3
19 20
6
17
7
5
15
14
16
8
18
3
11 12
4
2
10
1
9
13
CONNECTORS: D-08, D-13
AB
D-08
D-13
D-08
D-13
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