Mitsubishi Eclipse 1990 Service Manual page 1156

Check the installation condition of the input speed sensor
Check the installation
SCAN TOOL Data list
44 Transaxle input speed
Check the transmission fluid level.
SCAN TOOL Data list
44 Transaxle input speed
Raise the vehicle's drive wheels off the ground
Start the engine and step on the brake so the wheels won't
rotate.
1. Selector lever: 2
the throttle to 30%
Use the scan tool 'to monitor the input RPM.
Allow the engne to return to idle.
OK: 0 rpm
2. Select lever:
Open the throttle to 30%
Use the scan tool to monitor the input RPM.
Allow the enaine to return to idle.
OK: 0 rpm
Transaxle overhaul
If code No. 50 is set:
Reverse clutch or clutch may be slipping
If code No. 51 is set:
UD clutch may be slipping
If code No. 52 is set:
2-4 clutch or UD clutch may be slipping
If code No. 53 is set:
OD clutch may be slipping
If code No. 54 is set:
OD clutch may be slipping
Check trouble symptom.
Check the following connectors:
Repair
AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)>
OK
OK
OK
OK
NG
NG
TSB
Revision
Troubleshooting
NG
Repair
NG
Repair
NG
Repair
Carry out the inspection procedure for code No. 56.
NG
Repair
1. NG
The 2-4 clutch or
Caution
Do not test any gear range for longer than 5 seconds
The reverse clutch or low/reverse clutch may be slipping.
Replace the TCM.
clutch may be slipping.