Mitsubishi 380. Manual — part 396
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-124
STEP 6. Measure the transmission inhibitor switch output
voltage at A/T-ECU connector B-22 by using check
harness special tool MB992045. ("R" position)
Measure the voltage between terminal 23 and ground.
• When transmission range is "P," voltage should measure
0.5 volt or less.
• When transmission range is "R," voltage should equal bat-
tery positive voltage.
• When transmission range is "N," voltage should measure
0.5 volt or less.
• When transmission range is "D," voltage should measure
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 8.
NO : Turn the ignition switch to the "LOCK" (OFF) position.
Go to Step 7.
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
10DB095A
B-22 HARNESS
CONNECTOR:
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-125
STEP 7. Check the harness for damage between A/T-ECU
connector B-22 terminal 23 and transmission inhibitor
switch connector B-110 terminal 7.
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
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-126
STEP 8. Measure the transmission inhibitor switch output
voltage at A/T-ECU connector B-22 by using check
harness special tool MB992045. ("N" position)
Measure the voltage between terminal 26 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 equal bat-
tery positive voltage.
• When transmission range is "D," voltage should measure
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 10.
NO : Turn the ignition switch to the "LOCK" (OFF) position.
Go to Step 9.
16DB564A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTORS: B-19, B-22
10DB096A
B-22 HARNESS
CONNECTOR:
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-127
STEP 9. Check the harness for damage between A/T-ECU
connector B-22 terminal 26 and transmission inhibitor
switch connector B-110 terminal 4.
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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