Mitsubishi Montero (2004+). Manual - part 984
TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>
TSB Revision
AUTOMATIC TRANSMISSION
23A-511
STEP 9. Using scan tool MB991958, check data list item 12:
Shift Actuator Voltage.
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) Transmission range should be "N" range.
(4) Set scan tool MB991958 to data reading mode.
• Item 12: Shift Actuator Voltage.
• When the operating transfer shift lever 2H → 4H, 4H
→ 4HLc or 4HLc → 4LLc, the display should be 1/2
battery voltage
→ battery positive voltage → 1.0 volt
or less
→ 1/2 battery voltage.
• When the operating transfer shift lever 4LLc →
4HLc, 4HLc
→ 4H or 4H → 2H, the display should
be 1/2 battery voltage
→ 1.0 volt or less → 1/2 bat-
tery voltage.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the actuator 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 transfer-ECU.
DTC 45: Dissimilar Tire Diameter
.
CIRCUIT OPERATION
The condition of tire is detected by monitoring the
speed difference between the front propeller shaft
speed sensor and the rear propeller shaft speed sen-
sor with the transfer-ECU at 4WD condition.
.
DTC SET CONDITIONS
If the speed difference between the front wheel and
the rear wheel is larger than the set value at the free-
wheel engage switch ON condition, the DTC 45 is
set as the inadequate tire pressure, non-conformity
of the tire size or the tire brand.
.
TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)
• Malfunction of the tire
• Malfunction of the transfer-ECU
DIAGNOSIS
STEP 1. Tire pressure check.
Check the tire pressure, size and brand.
Q: Is the tire condition normal?
YES : Go to Step 2.
NO : Adjust or replace the tire.
AC307591 AC
MB991911
MB991824
MB991827
AC307591
DATA LINK
CONNECTOR