Mitsubishi 380. Manual — part 395
![](/vehicles/winoney/bby/jito/mastal.png)
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-120
DIAGNOSIS
Required Special Tool:
• MB991958: Diagnostic Tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main harness A
STEP 1. Check the transmission inhibitor switch.
Measure the resistance between the terminals for each trans-
mission range as indicated in the table below.
Q: Does the resistance measure less than 2 ohms for each
selector position?
YES : Go to Step 2.
NO : Replace the transmission inhibitor switch. Refer to
GROUP 23B, Transmission
.
TRANSMISSION
RANGE
TERMINAL CONNECTION OF
TESTER
SPECIFIED CONDITION
P
3
− 8, 9 − 10
Less than 2 ohms.
R
7
− 8
N
4
− 8, 9 − 10
D
1
− 8
AC305881
AC305532
AC305679
<F4A4B>
<F4A5A>
AC
TRANSMISSION
RANGE SWITCH
TRANSMISSION
RANGE SWITCH
AC210182AC
P
R
N
D
<F4A5A>
![](/vehicles/winoney/bby/jito/ounoorab.png)
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-121
STEP 2. Check transmission inhibitor switch connector
B-110 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 3.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
STEP 3. Check A/T-ECU connector B-22 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 4.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC210068
CONNECTOR: B-110
B-110 (B)
AE
TRANSMISSION
RANGE SWITCH
1
7
2
8
3
5
9
4
10
6
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
![](/vehicles/winoney/bby/jito/veave.png)
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-122
STEP 4. Measure the transmission inhibitor switch output
voltage at A/T-ECU connector B-22 by using check
harness special tool MB992045. ("P" position)
(1) Disconnect all the connectors from the A/T-ECU.
(2) Connect special tool MB992045 (check harness) between
the A/T-ECU and the body-side harness connector.
(3) Turn the ignition switch to the "ON" position.
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
10DB161A
A/T-ECU CHECK HARNESS
MB992045
A/T-ECU
A/T-ECU CHECK
HARNESS
CONNECTORS
![](/vehicles/winoney/bby/jito/cory.png)
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-123
(4) Measure the voltage between terminal 25 and ground.
• When transmission range is "P," voltage should equal
battery positive voltage.
• When transmission range is "R," voltage should mea-
sure 0.5 volt or less.
• When transmission range is "N," voltage should mea-
sure 0.5 volt or less.
• When transmission range is "D," voltage should mea-
sure 0.5 volt or less.
• When transmission range is sport mode, voltage should
measure 0.5 volt or less.
Q: Is the measured voltage within the specified range?
YES : Go to Step 6.
NO : Turn the ignition switch to the "LOCK" (OFF) position.
Go to Step 5.
STEP 5. Check harness for damage between A/T-ECU
connector B-22 terminal 25 and transmission inhibitor
switch connector B-110 terminal 3.
Q: Is the harness wire in good condition?
YES : Go to Step 14.
NO : Repair or replace the harness wire.
10DB094A
B-22 HARNESS
CONNECTOR:
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
AC210068
CONNECTOR: B-110
B-110 (B)
AE
TRANSMISSION
RANGE SWITCH
1
7
2
8
3
5
9
4
10
6
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст