Mitsubishi Eclipse 1990 Service Manual page 1138

Relay output (switched battery) has less than 3 volts at TCM pins 56 and 57 (Connector
when TCM pin 55 (Connector
whenever key is ON.
EATX relay
Ignition switch: OFF ON
O K : can be heard
Connecttheconnectorandmeasure
at the harness side.
Voltage between (8) and ground.
Ignition switch: ON
OK: voltaae
OK
Check the harness wire between the
TCM ((terminal (57)) and EATX
Check the following connector:
.
Check trouble symptom.
NG
Replace the TCM
AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)>
Relay always off (Relay contacts
to energize relay. Relay should be energized
Check the continuity between
terminals (2)
OK: Continuity
voltageisapplied
minals (4)
nuity
voltage is not applied.
Measure at the EATX relay connector
Disconnect the connector and
measure at the harness side.
1. Voltage between (4) and continuity
between terminal (6) and ground
OK: Continuity
2. Voltage between (4) and ground.
Ignition switch: ON
OK: Battery positive voltage
Check the following connector:
.
Check the harness wire between the
and the EATX
I
TSB Revision
Troubleshooting
Malfunction of relay (open contacts)
Harness or connector between relay coil and
TCM open or short-circuited
.
Harness or connector between relay output
and TCM open-circuited
.
Relay supply lines open-circuited
.
Relay ground open-circuited
Malfunction of TCM
(8).
when system
and no conti-
when system
OK
2 . N G
OK
.
Replace the EATX relay
Check the harness wire between the
TCM and the EATX relay.
(Open circuit check)
Repair
Check the following connector:
.
Replace the TCM
.