Mitsubishi Montero (2004+). Manual — part 871
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-59
STEP 15. Check A/T control solenoid valve assembly
connector C-03, PCM connector D-135 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 16.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC204395
CONNECTOR : C-03
AE
C-03 (B)
6
10
4
9
5
3
8
2
7
1
AC204681AB
CONNECTOR: D-135
D-135 (GR)
91 92
93
101
94 95
96 97 98 99 100
102103
104
105106
107108 109
110 111112
113114
115116 117
118 119120
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
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-60
STEP 16. Check the harness for open circuit or damage
between A/T control solenoid valve connector C-03
terminal 2 and PCM connector D-135 terminal 96.
Q: Is the harness wire in good condition?
YES : Go to Step 6.
NO : Repair or replace the harness wire.
AC204395
CONNECTOR : C-03
AE
C-03 (B)
6
10
4
9
5
3
8
2
7
1
AC204681AB
CONNECTOR: D-135
D-135 (GR)
91 92
93
101
94 95
96 97 98 99 100
102103
104
105106
107108 109
110 111112
113114
115116 117
118 119120
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-61
STEP 17. Check PCM connector D-135 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 6.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
DTC 16 (P0712): Transmission Fluid Temperature Sensor System (Short Circuit)
.
TRANSMISSION FLUID TEMPERATURE SENSOR
SYSTEM CIRCUIT
Refer to
.
.
CIRCUIT OPERATION
Refer to
.
.
DESCRIPTIONS OF MONITOR METHODS
If transmission fluid temperature equals or exceeds
specified value, PCM judges that transmission fluid
temperature 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)
• Not applicable
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
AC204681AB
CONNECTOR: D-135
D-135 (GR)
91 92
93
101
94 95
96 97 98 99 100
102103
104
105106
107108 109
110 111112
113114
115116 117
118 119120
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-62
LOGIC FLOW CHARTS (Monitor Sequence)
.
DTC SET CONDITIONS
Check Conditions, Judgement Criteria
• Transmission fluid temperature sensor voltage:
0.2 volt or less. (1 second)
.
OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in P range
for 5 seconds.
.
TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)
• Malfunction of the transmission fluid temperature
sensor circuit
• 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
AC205182
Transmission fluid
temperature sensor
voltage > 0.2 V
START
Good
Malfunction
END
Yes
No
Yes
No
Continuous failure
for 1 sec.
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