Mitsubishi Eclipse. Manual - part 837

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-357

STEP 6. Check the harness for open circuit, short circuit to 
ground or damage between PCM connector C-57 <2.4L 
Engine> or C-59 <3.0L Engine> terminal 80 and 
combination meter connector C-42 terminal 30.
Q: Is the harness wire in good condition?

YES : Go to Step 7.
NO :  Repair or replace the harness wire.

STEP 7. Check the speedometer.
Refer to GROUP 54A, Combination Meters Assembly and 
Vehicle Speed Sensor 

− Trouble Symptom Chart − Speedome-

ter Does Not Work 

P.54A-45

. 

Q: Is the speedometer operating properly?

YES : Go to Step 8.
NO :   Replace the combination meter.

AC001729 BB

CONNECTOR: C-42

C-42

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>

AC001729 BB

CONNECTOR: C-42

C-42

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-358

STEP 8. Using scan tool MB991958, check data list item 29: 
Vehicle Speed Signal.

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) Start the engine.
(3) Set scan tool MB991958 to data reading mode for item 29: 

Vehicle Speed Signal.

• Check that the speedometer and scan tool MB991958 

display speed match when driving at a vehicle speed of 
40 km/h (25 mph).

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

YES : 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-359

INSPECTION PROCEDURE 18: Shift Switch Assembly System <Vehicles with Sport Mode>

AC106639

Shift Switch Assembly System Circuit

AB

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-360

AC001844

CONNECTOR: B-41

DIPSTICK

AK

B-41

AC001741

CONNECTOR: C-27

AR

C-27

AC106611AB

CONNECTOR: C-28

C-28

AC001729AX

CONNECTOR: C-41

C-41

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>

AC001741

CONNECTOR: C-65

AS

C-65