Mitsubishi 380. Manual — part 397
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-128
STEP 10. Measure the transmission inhibitor switch output
voltage at A/T-ECU connector B-22 by using check
harness special tool MB992045. ("D" position)
Measure the voltage between terminal 24 and ground.
• When transmission range is "P," voltage should measure
0.5 volt or less.
• When transmission range is "R," voltage should measure
0.5 volt or less.
• When transmission range is "N," voltage should measure
0.5 volt or less.
• When transmission range is "D," voltage should equal bat-
tery positive voltage.
• When transmission range is sport mode, voltage should
equal battery positive voltage.
Q: Is the measured voltage within the specified range?
YES : Go to Step 14.
NO : Turn the ignition switch to the "LOCK" (OFF) position.
Go to Step 11.
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
10DB097A
B-22 HARNESS
CONNECTOR:
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-129
STEP 11. Check the harness for damage between A/T-ECU
connector B-22 terminal 24 and transmission inhibitor
switch connector B-110 terminal 1.
Q: Is the harness wire in good condition?
YES : Go to Step 12.
NO : Repair or replace the harness wire.
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
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-130
STEP 12. Check intermediate connector A-13, A/T-ECU
connector B-19 and shift switch assembly connector D-14
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 13.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC306223
A-13 (GR)
AB
CONNECTOR: A-13
1
4
7
8
2 3
5
13 14
17
15
12
16
11
10
9
6
10DB093A
CONNECTOR: D-14
FLOOR
WIRING
HARNESS
4
Y
2
15
ROOF
WIRING
HARNESS
D-14
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-131
STEP 13. Check the harness for damage between A/T-ECU
connector B-19 terminal 17 and transmission inhibitor
switch connector B-110 terminal 1.
Q: Is the harness wire in good condition?
YES : Go to Step 14.
NO : Repair or replace the harness wire.
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
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