Mitsubishi Montero Sport (2004+). Manual — part 626
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-69
DTC 22 (P0715): Input Shaft Speed Sensor System
Input Shaft Speed Sensor System
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-70
.
CIRCUIT OPERATION
• The input shaft speed sensor generates 0 ⇔ 5
volts pulse signal when the input shaft rotates.
The pulse signal frequency increases with a rise
in input shaft speed.
• The input shaft speed sensor is connected to the
PCM (terminals 57 and 103) via the input shaft
speed sensor connector (terminals 1 and 2).
• The PCM detects the input shaft speed by the
signal input to terminal 103.
• The input shaft speed sensor generates the pulse
signal as the teeth of the reverse clutch retainer
pass the magnetic tip of the sensor.
.
AC202362
2 3
1
CONNECTOR: B-16
AB
B-16 (B)
AC202363
4
3
10 11
9
8
5
12
1
6
2
7
9 10
8
6 7
31 32
30
29
21
20
19
18
5
4
2
1
3
27
26
24
23
25
16
15
14
13
12
28
17
33
22
11
22
9 10
20
19
6 7 8
21
17
1516
5
14
12 13
3
2
4
18
11
1
CONNETORS: C-30, C-71, C-96
AB
C-30
C-71
C-96
C-30
C-71
C-96
AC202316
PCM
60
46
26
57
45
44
64
55 56
65
62 63
52 53
5051
61
42
59
48
41
47
58
43
49
54
120
107
119
106
129 130
118
105
117
114115116
126127128
104
111
103
112
108
101102
109110
121122123
124
113
125
CONNECTORS: C-90, C-92
AB
C-90
C-92
C-90 (GR)
C-92 (GR)
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
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-71
DESCRIPTIONS OF MONITOR METHODS
If there is no detection pulse from input shaft speed
sensor (turbine rotation) even during driving test at
more than specified speed, PCM judges that input
shaft 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 29 (P0500): Vehicle speed sensor malfunc-
tion
Sensor (The sensor below is determined to be
normal)
• Vehicle speed sensor
.
LOGIC FLOW CHARTS (Monitor Sequence)
.
AC205223
N
E
:
Engine speed
START
Yes
No
Transmission fluid
temperature sensor
voltage < 4.5 V
Transmission range
switch position is in
D, 3, 2 or L range
Shift stage is 1st or 2nd
and N
E
< 2,600 r/min
Vehicle speed > 30 km/h (19 mph)
Yes
No
Yes
No
Yes
No
Pulses of input shaft speed
sensor are not inputted
Continuous failure for 4 secs.
Good
Malfunction
END
Yes
No
Yes
No
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-72
DTC SET CONDITIONS
Check Conditions
• Transmission range switch position: D, 3, 2 or L.
• Vehicle speed: 30 km/h (19 mph) or more.
• Transmission fluid temperature sensor voltage:
4.5 volts or less.
Judgement Criteria
• Input shaft speed signal: no signal change. (4
seconds)
• If DTC 22 (P0715) is set consecutively four times,
the transmission is locked into 3rd gear or 2nd
gear as a fail-safe measure, and the "N" range
light flashes once per second.
.
OBD-II DRIVE CYCLE PATTERN
Start the engine, shift to 3rd gear or higher, and drive
at 40 km/h (25 mph) or more for 10 seconds.
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
• Malfunction of the input shaft speed sensor circuit
• Malfunction of the reverse clutch retainer
• Damaged harness, connector
• Malfunction of the PCM
DIAGNOSIS
Required Special Tool:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B
STEP 1. Using scan tool MB991958, check data list item 22:
Input Shaft Speed Sensor.
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) Start the engine.
(3) Set scan tool MB991958 to data reading mode.
• Item 22: Input Shaft Speed Sensor.
• When driving at constant speed of 50 km/h (31
mph), the display should be "1,400
− 1,700 r/min"
(Gear range: 3rd gear).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor 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 : Go to Step 2.
AK303629AB
MB991911
MB991827
MB991824
16-PIN
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