Mitsubishi Eclipse 1990 Service Manual page 1988

INSPECTION PROCEDURE 4
When the seat belts are not fastened and the ignition
switch is turned to the ON position, the seat belt warning
light illuminates or flashes, but the seat belt warning
er does not sound.
[Comment]
It is possible that there is a malfunction of the front seat belt
Replace the ETACS-ECU.
INSPECTION PROCEDURE 5
When the seat belts are not fastened and the ignition
switch is turned to the ON position, the seat belt warning.,
buzzer sounds, but the seat belt warning light does not il-
luminate nor flash.
[Comment]
It is possible that there is a malfunction of the seat belt warning light circuit or
ECU.
OK
OK OK
Disconnectthejunction blockconnector Disconnectthejunction blockconnector
and measure at the harness side. and measure at the harness side.
Continuity between terminal (5) and Continuity between terminal (5) and
OK: Continuity
trouble symptom.
INTERIOR Front Seat Belt
switch circuit.
NG
.
Front seat belt buckle switch input circuit
sysyem check.
(Refer to
NG
the followina connectors:
NG NG
Check the following connectors: Check the following connectors:
and and
Check trouble symptom.
Replace the ETACS-ECU.
TSB Revision
Probable cause
Malfunction of front seat belt buckle
Malfunction of
Malfunction of ETACS-ECU
Probable cause
Malfunction of bulb
Malfunction of
Malfunction of harness wire
Malfunction of ETACS-ECU
NG
junction block and combination meter.
NG NG
Repair Repair
NG
Check the harness wire between
block and combination
Repair, if necessary.
,
.