Mitsubishi Montero (2004+). Manual - part 869
AUTOMATIC TRANSMISSION DIAGNOSIS
TSB Revision
AUTOMATIC TRANSMISSION
23A-51
STEP 6. Using scan tool MB991958, check data list item 15:
Transmission Fluid Temperature 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 the data reading mode.
• Item 15: Transmission Fluid Temperature Sensor.
• When the engine is cool: Almost equal to the ambi-
ent temperature (atmospheric temperature)
NOTE: Set scan tool MB991958 to the data reading
mode for item number 13, Intake Air Temperature
(IAT) Sensor and note the temperature measure-
ment. When the engine is cool, the temperature
should be almost equal to the ambient temperature
(atmospheric temperature), and the IAT sensor mea-
surement should be approximately the same as the
Transmission Fluid Temperature Sensor.
• When the engine is warm: 70 to 80°C (158 to
176
°F).
(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 : Replace the PCM.
STEP 7. Check A/T control solenoid valve assembly
connector C-03 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
AC307591 AC
MB991911
MB991824
MB991827
AC307591
DATA LINK
CONNECTOR
AC204395
CONNECTOR : C-03
AE
C-03 (B)
6
10
4
9
5
3
8
2
7
1