Mitsubishi Eclipse. Manual - part 776

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-113

STEP 21. Check PCM connectors C-50 <2.4L Engine> or 
C-52 <3.0L Engine> and C-54 <2.4L Engine> or C-55 <3.0L 
Engine>, and MFI relay connector A-18X 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 22.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC001657

CONNECTORS:  C-50 <2.4L ENGINE>  OR
C-52 <3.0L ENGINE>, C-54 <2.4L ENGINE> 
OR C-55 <3.0L ENGINE>

PCM

BF

C-50 <2.4L ENGINE> OR 
C-52 <3.0L ENGINE>

C-54 <2.4L ENGINE> OR 
C-55 <3.0L ENGINE>

AC102447AE

BATTERY

CONNECTOR: A-18X

A-18X

FRONT OF VEHICLE

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-114

STEP 22. Check the harness for damage between 
crankshaft position sensor connector B-20 terminal 1 and 
PCM connector C-50 <2.4L Engine> or C-52 <3.0L Engine> 
terminal 16.
Q: Is the harness wire in good condition?

YES : Go to Step 23.
NO :  Repair or replace the harness wire.

AC004926AC

CONNECTOR: B-20
<2.4L ENGINE>

B-20

AC004927AC

CONNECTOR: B-20
<3.0L ENGINE>

B-20

AC001657

CONNECTOR: C-50 <2.4L ENGINE> OR 
C-52 <3.0L ENGINE>

PCM

BE

C-50 <2.4L ENGINE> OR 
C-52 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-115

STEP 23. Check the harness for damage between 
crankshaft position sensor connector B-20 terminal 2 and 
PCM connector C-54 <2.4L Engine> or C-55 <3.0L Engine> 
terminal 45.
Q: Is the harness wire in good condition?

YES : Go to Step 24.
NO :  Repair or replace the harness wire.

AC004926AC

CONNECTOR: B-20
<2.4L ENGINE>

B-20

AC004927AC

CONNECTOR: B-20
<3.0L ENGINE>

B-20

AC001657

CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>

PCM

BA

C-54 <2.4L ENGINE> OR C-55 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-116

STEP 24. Check the harness for damage between MFI relay 
connector A-18X terminal 4 in the engine component relay 
box and crankshaft position sensor connector B-20 
terminal 3.
Q: Is the harness wire in good condition?

YES : Go to Step 25.
NO :  Repair or replace the harness wire.

STEP 25. Check the crankshaft angle sensing blade.
Q: Is the crankshaft angle sensing blade in good 

condition?
YES : Replace the crankshaft position sensor. Refer to 

GROUP 16, Ignition System 

− Crankshaft Position 

Sensor Removal and Installation <2.4L 
Engine>

P.16-54

 or <3.0L Engine>

P.16-55

.

NO :  Replace the crankshaft angle sensing blade.

AC102447AE

BATTERY

CONNECTOR: A-18X

A-18X

FRONT OF VEHICLE

AC004926AC

CONNECTOR: B-20
<2.4L ENGINE>

B-20

AC004927AC

CONNECTOR: B-20
<3.0L ENGINE>

B-20