Mitsubishi Eclipse. Manual - part 806

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-233

STEP 6. Check A/T control solenoid valve assembly 
connector B-40 and PCM connector C-61 <2.4L Engine> or 
C-63 <3.0L Engine> 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 7.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 7. Check the harness for an open or short circuit to 
ground between A/T control solenoid valve assembly 
connector B-40 terminal 4 and PCM connector C-61 <2.4L 
Engine> or C-63 <3.0L Engine> terminal 106.
Q: Is the harness wire in good condition?

YES : Replace the PCM.
NO :  Repair or replace the harness wire.

ACX02479

CONNECTOR: B-40

AK

B-40

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

BC

C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>

ACX02479

CONNECTOR: B-40

AK

B-40

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

BC

C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-234

STEP 8. Measure the supply voltage at A/T control 
solenoid valve assembly connector B-40.
(1)  Disconnect solenoid valve assembly harness connector 

B-40.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between harness connector B-40 

terminal 9 and ground.

• The voltage should equal battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?

YES : Go to Step 11.
NO :  Go to Step 9.

STEP 9. Check A/T control relay connector A-17X in the 
engine component relay box and A/T control solenoid 
valve assembly connector B-40 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 10.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

ACX02479

CONNECTOR: B-40

AK

B-40

AC001967AT

B-40 HARNESS
CONNECTOR:
COMPONENT SIDE

AC102447AF

BATTERY

CONNECTOR: A-17X

A-17X

FRONT OF VEHICLE

ACX02479

CONNECTOR: B-40

AK

B-40

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-235

STEP 10. Check the harness for an open circuit or short 
circuit to ground between A/T control relay connector 
A-17X terminal 4 in the engine component relay box and 
A/T control solenoid valve assembly connector B-40 
terminal 9.
Q: Is the harness wires in good condition?

YES : Go to Step 11.
NO :  Repair or replace the harness wire.

STEP 11. Check A/T control solenoid valve assembly 
connector B-40 and PCM connector C-61 <2.4L Engine> or 
C-63 <3.0L Engine> 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 12.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC102447AF

BATTERY

CONNECTOR: A-17X

A-17X

FRONT OF VEHICLE

ACX02479

CONNECTOR: B-40

AK

B-40

ACX02479

CONNECTOR: B-40

AK

B-40

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

BC

C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-236

STEP 12. Check the harness for an open or short circuit to 
ground between A/T control solenoid valve assembly 
connector B-40 (terminals 3, 4 and 5) and PCM connector 
C-61 <2.4L Engine> or C-63 <3.0L Engine> (terminals 106, 
120 and 130).
Q: Are the harness wires in good condition?

YES : Go to Step 13.
NO :  Repair or replace the harness wire.

STEP 13. Check the harness for an open or short circuit to 
ground between A/T control solenoid valve assembly 
connector B-40 (terminals 3, 4, 5, and 9) and solenoid valve 
connectors B-40-1, B-40-2 and B-40-3.
Q: Is the harness wire in good condition?

YES : Replace the PCM.
NO :  Replace the harness wire.

ACX02479

CONNECTOR: B-40

AK

B-40

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

BC

C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>

ACX02479

CONNECTOR: B-40

AK

B-40

AC002219

CONNECTORS: B-40-1, B-40-2, B-40-3

CK

B-40-1

B-40-2

B-40-3

VALVE BODY
ASSEMBLY

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