Mitsubishi Montero (2004+). Manual — part 898
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-167
STEP 24. Check the harness for damage between PCM
connector D-134 terminal 85 and shift switch assembly
connector E-115 terminal 4.
Q: Is the harness wire in good condition?
YES : Go to Step 25.
NO : Repair or replace the harness wire.
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-115
BE
8
3
4 5
1
2
6 7
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-168
STEP 25. Using scan tool MB991958, check data list item
61: Transmission Range 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 the data reading mode.
• Item 61: Transmission Range Switch.
• Move the selector lever to "P," "R," "N," "D" and sport
mode positions and confirm that the selected trans-
mission ranges match the positions (Sport mode is
indicated as "D" on scan tool MB991958).
(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.
AC307591 AC
MB991911
MB991824
MB991827
AC307591
DATA LINK
CONNECTOR
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-169
DTC 29 (P0500): Vehicle Speed Sensor System
AC205193 AB
Vehicle Speed Sensor System Circuit
AC204170
CONNECTOR : D-03
CE
D-03 (GR)
58
57
67
66
56
54 55
64
59
53
52
62
61
63
65
60
51
AC204171
CONNECTOR : D-116
AN
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
AUTOMATIC TRANSMISSION DIAGNOSIS
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AUTOMATIC TRANSMISSION
23A-170
.
CIRCUIT OPERATION
• 4.8 − 5.2 volts voltage is applied to the vehicle
speed sensor from the PCM (terminal 79). The
vehicle speed sensor generates a pulse signal
when the output terminal is opened and ground.
• The PCM compares the vehicle speed sensor
signal to input shaft and output shaft speed sen-
sor signals.
• If the vehicle speed sensor becomes inoperative,
the transmission will not shift normally.
.
DESCRIPTIONS OF MONITOR METHODS
If there is no detection pulse from vehicle speed sen-
sor even when output shaft revolution equals or
exceeds specified value, PCM judges that vehicle
speed sensor has a failure.
.
MONITOR EXECUTION
Continuous
.
MONITOR EXECUTION CONDITIONS (OTHER
MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• DTC 23 (P0720): Output shaft speed sensor mal-
function
Sensor (The sensor below is determined to be
normal)
• Output shaft speed sensor
.
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-111
BF
15
4
14
37
36
26 27
12
11
35
34
23 24
3
13
25
9
2
8
32
20 21
6
5
17
29
30
18
1
7
19
31
10
22
33
16
28
38
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