Mitsubishi Eclipse. Manual - part 820

 

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Mitsubishi Eclipse. Manual - part 820

 

 

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-289

STEP 14. Check the A/T control relay output voltage at 
PCM connector C-57 <2.4L Engine> or C-59 <3.0L Engine> 
by backprobing.
(1) Do not disconnect connector C-57 <2.4L Engine> or C-59 

<3.0L Engine>.

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

(3) Measure the voltage between terminal 77 and ground by 

backprobing.

• The measured voltage should equal battery positive 

voltage.

(4) Measure the voltage between terminal 89 and ground by 

backprobing.

• The measured voltage should equal battery positive 

voltage.

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

voltage between terminal 77 and ground, and between 
terminal 89 and ground?
YES : 
Go to Step 17.
NO :  Go to Step 15.

STEP 15. Check PCM connector C-57 <2.4L Engine> or 
C-59 <3.0L Engine> for loose, corroded or damaged 
terminals, or terminals pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 16.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC001657

CONNECTOR: C-57 <2.4L ENGINE> OR 
C-59 <3.0L ENGINE>

AZ

PCM

C-57 <2.4L ENGINE> OR C-59 <3.0L ENGINE>

AC002011AN

C-57 <2.4L ENGINE> OR
C-59 <3.0L ENGINE>

HARNESS CONNECTOR:
HARNESS SIDE

AC002012 AN

C-57 <2.4L ENGINE> OR
C-59 <3.0L ENGINE>

HARNESS CONNECTOR:
HARNESS SIDE

AC001657

CONNECTOR: C-57 <2.4L ENGINE> OR 
C-59 <3.0L ENGINE>

AZ

PCM

C-57 <2.4L ENGINE> OR C-59 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-290

STEP 16. Check the harness for open circuit or short 
circuit to ground between A/T control relay connector 
A-17X (terminal 3) in the engine component relay box and 
junction block connector C-57 <2.4L Engine> or C-59 <3.0L 
Engine> (terminals 77 and 89).
Q: Is the harness wire in good condition?

YES : Go to Step 17.
NO :  Repair or replace the harness wire.

AC102447AF

BATTERY

CONNECTOR: A-17X

A-17X

FRONT OF VEHICLE

AC001657

CONNECTOR: C-57 <2.4L ENGINE> OR 
C-59 <3.0L ENGINE>

AZ

PCM

C-57 <2.4L ENGINE> OR C-59 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-291

STEP 17. Using scan tool MB991958, check data list item 
54: A/T Control Relay Output Voltage.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Set scan tool MB991958 to data reading mode for item 54: 

A/T Control Relay Output Voltage.

• The voltage should equal battery positive voltage.

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

voltage?
YES : 
It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-6

.

NO :  Replace the PCM.

AC303127

AB

MB991911

16-PIN

MB991827

MB991824 

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-292

DTC 56: ''N'' Range Light System <Vehicles with sport mode>

AC102731

''N'' Range Light System Circuit

AB

AC001844

CONNECTOR: B-41

DIPSTICK

AK

B-41

AC001741

CONNECTOR: C-27

AR

C-27

 

 

 

 

 

 

 

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