1991 MITSUBISHI ECLIPSE Service Manual

BODY - Troubleshooting23-21
1 2. Warning Light, Key Reminder Switch, Buzzer Circuit 1IIJUNCTION
BLOCK
WARNING LIGHT
gCTy4;NATION
c-7,,7L,,l7,/\
00IOA
IOA
2:y47
.---
141I
I
I
I
I
I
1I
3
2
11
I
I
I13
-I_---
10IGNITION SWITCH
SUB FUSIBLE LINK @AUTOMATIC
SEAT BELT
CONTROL UNIT
t
11 WG
KEY REMINDER
6
\IL!>
Nhen ke
8emoved
13
+ installed
J
2
1SEAT BELT
WARNING BUZZER
20
w
IIem

23-22BODY - TroubleshootingCheck method
StepOperation
Check object
Varning lightJudgementCauseRemedy
NormalMalfunction
1Unplug theTerminal voltagewarnrng light
of warning light
connector
harness side
Ignition switch:
connector
ON(I-Ground)
2Connect the
Terminal voltagewarnrng light
of control unit
connector.
harness side
Unplug theconnector
connector from the (1 -Ground)
control unit.
Ignition switch:
ON
ey reminder switchSystem voltage
System voltage0 V
0 VOpen harness wireRepair the harnes:
or disconnectedor plug in the
connector between connector
correct1junction block and
combination meter
Open harness wireRepair the harries:
or disconnectedor plug in the
connector between connector
correctl!combination meter
and control unit
Warning light bulbReplace or
blown or in poorcorrectly install
contactthe warning light
1Disconnect the key Terminal voltageSystem voltage0 VOpen harness wireRepair the harness
reminder switchof key reminder
or disconnectedor plug in the
connector.
switch harnessconnector between connector
correct11side connector
junction block and
t 1 -Ground,
key reminderS-Ground)switch
2Plug the key
Terminal voltage13-Ground:ovOpen harness wireRepair the harness
reminder switchof control unitSystem voltageor disconnectedor plug in the
connector.
harness sideconnector between connector
correct11Unplug theconnectorkey reminder
connector from the
(13-Ground,switch and control
control unit12-Ground)unit
Remove the key
from the ignition
12-Ground:A voltage same asDefective keyCheck the key
switch.ovor lower thanreminder switchreminder switch.
system voltage(Refer to GROUP
84gnition Switch.1
3Insert the key.Terminal voltage
13-Ground:A voltage same
as or lower thanDefective keyCheck the key
of control unit
ovreminder switchreminder switch.
harness sidesystem voltage
(Refer to GROUP
connector
84gnition Switch.1(13-Ground,12-Ground)12-Ground:ovOpen harness wireRepair the harness
System voltageor disconnectedor plug in the
connector between connector correctly
key reminder switch
and control unit
lzzer
1Unplug the buzzer
Terminal voltageSystem voltage0 VOpen harness wireRepair the harness
connector.of harness side
or disconnectedor plug in the
connector
connector between connector correctly
t 1 -Ground)
junction block and
buzzer
2Plug in the buzzer
Terminal voltageSystem voltage0 VOpen harness wireRepair the harness
connector.
of control unit
or disconnectedor plug in the
Unplug the
harness side
connector between connector correctly
connector from the connector
buzzer and control
control unit
(20-Ground)unit

BODY - Troubleshootinn23-23
I3. Release Switch (driver’s side), Buckle Switch, Outer Switch CircuitI-1AUTOMATIC SEAT BELT CONTROL UNI
RELEASE SWITCH
(LEFT SIDE)
1
1BUCKLE
SWITCH
a19A0345
Repair the harness
or plug in the
connector correctly Check method
Step
OperationCheck objectlelease switch (driver’s side)Judgement
CauseRemedy
NormalMalfunction
1Unplug theTerminal-to-ground 0 QmclOpen harness wire
“release” switch
continuity ofor disconnected
connector.“release” switchconnector between
harness side“release” switch
connectorand ground
(1 -Ground)
Improper ground
connectionCorrectly connect
to ground
2Plug in theTerminal-to-ground 0 Q when slideRemainsDefective
“release” switch
continuity ofanchor is not inOQorooQ“release” switch
connector.control unitthe “release”
Unplug theharness side(switch
ON) range.
connector from the connectorOpen harness wire
control unit. Move
(5-Ground)ca g when slideor disconnected
the slide anchor.anchor is in theconnector between
“release” (switchcontrol unit and
OFF) range.“release” switchReplace the driving
device assembly.
(Refer to
P.23-94.1Repair the harness
or plug in the
connector
correctly.

23-24BODY - TroubleshootingCheck method
Step
OperationCheck object
Buckle switchJudgement
Cause
RemINormalMalfunction
1Unplug theTerminal-to-ground 0 Qconnector from the continuity of
buckle switch.
buckle switch
harness side
connector
(2-Ground)
2Plug in the buckle
Terminal-to-ground 0 nswitch connector.
continuity of
Unplug thecontrol unit
connector from the harness side
control unit.
connector
Leave the lap belt
(2-Ground)unfastened
(buckle switch ON).3uter switchOpen harness wire Repair the
between buckle
switch and ground
Improper groundCorrectly
cconnectionto ground
Open harness wire Repair the
between control
unit and buckle
switch
Defective buckleReplace th
switchbuckle.
(Refer to
F
1Unplug theTerminal-to-ground 0 QwflOpen harness wire
Repair the
connector fromcontinuity of outer
between outer
the outer switch.switch harness
switch and ground
side connectorL.H.Improper groundCorrectly
c(2-Ground)connectionto groundR.H.(4-Ground)
2Pull out andTerminal-to-ground 00 0 from theResistance remains Defective outerReplace thl
retract thecontinuity of outerbelt’s fullyOgorconswitchretractor
shoulder belt.switch sideretracted positionor changes from(for should1connectoruntil belt is pulledofltocon(Refer to FL.H. (l-2)out approx.or from 00 62R.L. (3-4)midway (outerto 0 62 at points
switch OFF)other than the
0
0 from theapprox. midway
approx. midwaypulled out position
pulled out position
until belt is pulled
out fully (outer
switch ON)
3Attach theTerminal-to-ground 0
62wdlOpen harness wire
Repair the
shoulder belt tocontinuity ofbetween control
the slide anchorcontrol unitunit and outer
(outer switch ON). harness sideswitch
Plug in the
connector
connector to theL.H.
outer switch.
(3-Ground)Unplug theR.H.connector from the(I 4-Ground)control unit.

BODY - Troubleshootinn23-254. Door Latch Switch, Fasten Switch, Release Switch (passenger’s side) Circuit
_-AUTOMATIC SEAT BELT CONTROL UNIT
I,
-- -----_ -"4 "21I
ifsII
II
IIFASTEN
I
ISWITCHI
II(RIGHT
SIDE)
,,6 -4,lI--_ _--_----JI
5 2sI
I7,~-15,L--- _____ --J
8
m
I

23-26BODY - Troubleshooting
(1) Driver’s side
Check methodJudgement
StepCauseRemedy
Operation
Check objectNormalMalfunction
1Unplug the doorContinuity of door
Between terminalsRemainsDoor latch switchReplace the door
latch switchlatch switch
2 and 3OL4orooQdamagedlatch switch
connector.(2-3, I-3)0 0 when(Refer to P.2394.)
Open and close
door is open
the door
00 il when door
is closed
Between terminals
1 and 3
OQ Q when door
is open
0
il when
door is closed
2
-Terminal-to-ground 0 Qwi-2Open harness wireRepair the harness
continuity of dooror disconnectedor plug in the
latch switchconnector between connector correctI\
harness sidedoor latch switch
connectorand ground
(3-Ground)improper groundCorrectly connect
connectionto ground
3Connect the doorTerminal-to-ground0 0 when door isRemainsOpen harness wire Replace the
latch switchcontinuity of
openOgoroonor disconnectedharness or plug in
connector.control unitw 0 when door isconnector between the connector
Unplug theharness sideclosedcontrol unit andcorrectly.
connector from the connectordoor latch switch
control unit.
(6-Ground)Open and close
the door.
4Unplug theTerminal-to-ground
00 Q when door isRemainsOpen harness wireRepair the harness
“fasten” switch
continuity of theopenOgorooQor disconnectedor plug in the
connector.“fasten” switch0 s2 when door isconnector between connector correctly
Open and closeharness sideclosed“fasten” switch
the door.connectorand door latch
(6-Ground)switch
5Plug in theTerminal-to-ground 00 s2 when slideRemainsDefective “fasten”Replace the driving
“fasten” switchcontinuity ofanchor is in theOgoraogswitchdevice assembly
connector.control unit“fasten” range
Close the door.harness side(“fasten” switch
connector
OFF)(4-Ground)0 !I when slide
anchor is not in the
“fasten” range
(“fasten” switchON)

(21Passenger’s side
,+-BODY
- TroubleshootinsCheck method
Judgement
StepCauseRemedy
OperationCheck object
NormalMalfunction
1Unplug the doorContinuity of door
Between terminalsRemainsDoor latch switch
Replace the door
latch switch
latch switch2 and 3OnorwQdamagedlatch switch
connector.(2-3, I-3)0 Q when door(Refer to P.23-94.)Open and close the
is open
door
w 61 when door
is closed
Between terminals
1 and 3
w Q when door
is open
0
h2 when door
is closed
2
-Terminal-to-ground 0 0Wi-lOpen harness wire
continuity of theRepair the harness
or disconnected
door latch switchor plug in the
connector between connector correctly
harness side
door latch switch
connector
and ground
(3-Ground)Improper ground
Correctly connect
connection
to ground
3Connect the doorTerminal-to-ground
0
0 when door is
RemainsOpen harness wire
Repair the harness
latch switchcontinuity of the
openOQorwQor disconnected
or plug in the
connector.“release” switchw Q when door isconnector between connector correctly
Unplug theharness side
closed“release” switch
connector from the connectorand door latch
“release” switch.
(I -Ground)switch
Open and close the
door.
4Connect theTerminal-to-ground
0
tl when door isRemainsDefective “release” Replace the driving
“release” switchcontinuity of
open and slideOQorwQswitchdevice assembly.
connector.control unit
anchor is not in the(Refer to P.23-94.)Unplug theharness side“release” range
connector from the connector(“release” switch
control unit.
t 16-Ground1ON)Open harness wire
Repair the harness
Open and close thew !J when door isor disconnectedor plug in the
door.closed and slideconnector between connector correctly.
anchor in thecontrol unit and
“release” range“release” switch
(“release” switch
OFF)
5Unplug theTerminal-to-groundw Q when door isRemainsOpen harness wire
Repair the harness
“fasten” switchcontinuity of the
openODorwQor disconnectedor plug in the
connector.“fasten” switch
0 0 when door isconnector between connector correctly.
Open and close the harness side
closed“fasten” switch
door.connectorand door latch
(6-Ground)switch
6Connect theTerminal-to-ground
0 0 when door isRemainsDefective “fasten”Replace the driving
“fasten” switchcontinuity of
closed and slideOh2orwQswitchdevice assembly
connector.control unitanchor is not in the(Refer to P.23-94.)Open and close the harness side“fasten” range
door.connector(“fasten” switch
(I 5-Ground)ON)w 62 when door isOpen harness wire
Repair the harness
closed and slideor disconnectedor plug in the
anchor is in theconnector between connector correctly.
“fasten” rangecontrol unit and
(“fasten” switch“fasten” switch
OFF)

23-28BODY - Troubleshooting5. Motor Power Supply and Drive Circuit
AUTOMATIC SEAT
BELT MOTOR RELAY
(LEFT SIDE)SUB
FUSI;LE LINK @
r-Vehicles with A.B.S.
I,---Vehicles without A
AUTOMATIC
SEAT BELT
BELT MOTOR
2 (LEFT SIDE). .nI nMOTOR
(RIGHT SIDE)
AIITnhAATlr CFAT r!AUTOMATIC SEAT
BELT MOTOR RELAY
(RIGHT SIDE)1310344
Step
1
TCheck method
Judgement
OperationCheck object
Normal
Unplug the motorTerminal-to-ground 0
62relay connector.continuity of
harness side
connector
(5-Ground)Harness side
terminal voltage
of motor relay
(Z-Ground,
6-Ground)System voltage
Plug in the motorTerminal voltage
System voltage
relay connector.of control unit
Unplug theharness side
connector from
connector
control
unit.L.H.(8-Ground,g-Ground)R.H.(18-Ground,1 g--Ground)Malfunction
WQ
ov
ov
TCauseRemedy
Open harness wire
Repair the harness
between motor
relay and ground
Improper groundCorrectly connect
connectionto ground
Open harness wire
Repair the harness
or disconnectedor plug in the
connector between connector correctly
fusible link and
motor relay
Open harness wire
Repair the harness
or disconnectedor plug in the
connector between connector correctly
motor relay and
control unit
Defective motor
relayReplace the driving
device assembly.
(Refer to
P.23-94.),