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 

P.00E-2

.

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