Mitsubishi Eclipse 1990 Service Manual page 1158

Code Scan tool 57
General scan tool
There is an excessive change in output shaft speed in any gear.
A hard fault is considered to exist when the fault counter has matured to a value of 255.
An intermittent fault is considered present when the fault counter is greater than or equal
to 6 and less than 255.
No fault is considered to exist when the fault counter is less than 6.
Measure at the TCM connector
Disconnect the connector and
measure at the harness side.
Resistance value between (54) and
around.
Less than
Measure at the TCM connector
Disconnect the connector and
measure at the harness side.
Resistance value between (53) and
(54).
OK:
NG
Measure at the TCM connector
and output speed sensor connector
Disconnect the connector and
measure at the harness side.
between
and (1).
OK: Less than
OK
Measure at the TCM connector
and output speed sensor connector
Disconnect the connector and
measure at the harness side.
between
and (2).
OK: Less than
OK
Replace the output speed sensor
AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)>
Output Speed
Speeds error:
NG
Measure at the TCM conenctor
Disconnect the connector
and then measure at the
harness side.
Resistance value between (54) and
ground.
OK: Less than
Replace the output speed sensor
OK
Check the following connector:
Replace the TCM
Check the
(53)
TCM and
NG
Check the harness wire between the
TCM and
(54)
TSB Revision
Probable cause
Malfunction of output speed sensor
Harness or connector
sensor and TCM open or short-circuited
Malfunction of TCM
N G
and
OK
wire between the
speed
sensor.
output Speed
Check the harness' between
TCM and input speed
Repair
Repair