1995 MITSUBISHI 3000GT drive

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Buzzer Circuit211
OPERATION
L
lBattery positive voltage is continuously applied to the key-reminder switch.l
If the driver’s door is opened (door switch ON) with the key inserted in the ignition switch (key-reminderswitch ON), the buzzer sounds to warn that the key has been left in the switch.
&eat belt warning>
lWhen the ignition switch is turned on, the timer circuit and pulse circuit will flicker the seat belt warning
light for approx. 6 seconds with the buzzer intermittently sounding.
lIf the seat belt is fastened for the while, the seat belt switch will be turned off and the buzzer will
stop.
TROUBLESHOOTING HINTS
/
L
ProblemCheck methodThe key-reminder The seat belt warning function l
Check the door switch.
warningdoesn’t is OK.(Refer to GROUP 42-Door Assembly.)
sound.The seat belt warning also l Check the buzzer.
doesn’t function.(Refer to GROUP 52A-Seat Belt.)
The seat belt warn-The seat belt warning light lCheck the seat belt switch.
ing doesn’t
func- flashes.(Refer to GROUP 52A-Seat Belt.)
tion.The seat belt warning light l Check the key-reminder switch.
also does not function (and(Refer to GROUP M-Ignition Switch.)
the key-reminder warning
also does not function).
The buzzer doesn’t stop even through the driver’slCheck the seat belt switch.
seat belt has been buckled.(Refer to GROUP 52A-Seat Belt.)
The seat belt warning light doesn’t flashes (but thelCheck the light bulb.
buzzer sounds).lCheck the key-reminder switch.(Refer to GROUP 54-Ignition Switch.)
lCheck the seat belt switch.
(Refer to GROUP
52A-Seat Belt.)
The warning light does not flash and the warninglCheck the ignition switch input signal.buzzer also does not sound.(Refer to GROUP 52A-Troubleshooting.)l Check the key-reminder switch.
(Refer to GROUP 54-Ignition Switch.)
lCheck the seat belt switch.
(Refer to GROUP 52A-Seat Belt.)
The warning light flashes, but the warning buzzer l
Check the key-reminder switch.
does not sound.(Refer to GROUP M-Ignition Switch.)lCheck the seat belt switch.
(Refer to GROUP 52A-Seat Belt.)
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Central Door Locking Circuit237
OPERATION/
Li!l
When the door lock switch is set to the LOCKside (or UNLOCK side), the LOCK side (or
UNLOCK side) of the door lock relay is turned
ON and the door actuators of all doors operate.l
If the driver seat side door (or assistant seat
side door) is opened and the driver seat side
inside lock knob (or assistant seat side inside

0
,’
id
0
With the driver’s and front passenger’s doorsunlocked, press the LOCK switch of the
transmitter, and the door lock signal output (0V) will be sent from the
keyless entry control
unit terminal No. 12 closing the door lock powerrelays 1 and 2 to lock the driver’s and front
passenger’s doors.
While the R.H. and L.H. doors are in the lockedstate, press the UNLOCK switch of the
transmitter once, and the DOOR UNLOCK
switch signal (0 V) will be sent from the keylessentry control unit terminal No. 14 closing the
door lock power relay 2 to unlock the driver’s
door.
Under the above-mentioned conditions, further
press the UNLOCK switch of the transmitter,and the DOOR UNLOCK signal output (0 V)
will be sent from the keyless entry control unitterminal No. 13 closing the door lock power
relay 1 to lock the front passenger’s door.
When the keyless entry system is operated toturn the driver’s door lock switch from the
UNLOCK position to the LOCK position, thelock knob) is locked with the key inserted in
the ignition switch, the ETACS unit grounds the
unlock side circuit of the door lock relay to unlock
all doors. This way, failure to remove the key
is prevented.dome light/foot light blinking signal output
(system voltage) will be sent twice from the
keyless entry control unit terminal No. 11 when
the door lock switch is turned from the LOCK
position to the UNLOCK position, the lighting
signal output (0 V) will be provided for approx.
3 seconds.
NOTE
The dome light winks or comes on when the domelight switch is in the DOOR interlock position.
However, the dome light does not wink while it .is
ON for 6 seconds after closing the door by ETACS
function.Besides the above-mentioned operations, the
keyless entry control unit has the following functions.l
If any door is not opened or closed within 30
seconds from unlocking the door by means ofthe
keyless entry system, the door is
automatically locked.In addition, if the
cryptographic code other than the code storedin the receiver memory is received 30 times
in one minute continuously, operation of the
unit is suspended for 10 minutes.l
Operation is also suspended if the ignition key
remains inserted (key reminder switch: OFF)
and either door is left open (door switch: ON).TROUBLESHOOTING HINTS

Phenomenon
Inspection method
One of the door lock actuators fails to operate.
0Check the door actuator which fails to operate.
No unlock operation can be made by pressing door lock0
knob after fulfilment of following conditions.Check the key reminder switch input signal.0Check the key reminder switch. (Refer to GROUP
0Insertion of key in ignition switch (key reminder switch54-Ignition Switch.)
OFF)0
0Opening of door (door switch ON)Check the front door switch input signal.0 Check the front door switch. (Refer to GROUP
42-Door Assembly)
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Downloaded from www.Manualslib.com manuals search engine 238CIRCUIT .DIAGRAMS - Central Door Locking Circuit
l
The indicator does not blink after pressing thetransmission switch of the transmitter.
1) Check or replace the battery. (Refer to
GROUP
42-Keyless Entry System.)
2) Replace the transmitter.
l Transmitted wave is being sent from thel
R.H. and L.H. doors can be locked and unlocked
by the transmitter but the dome light and footlight do not blink or come on. (Interlocked
lighting of the dome light and foot light by means
of the dome light switch or door opening and
closing is normal).
transmitter (indicator is blinking), but the system
does not operate.1) Check the cryptographic code registering
method. (Refer to GROUP
42-Keyless
Entry System.)
2)Check the keyless entry control unit terminalvoltage. (Refer to GROUP
42-Trouble-
shooting.)3) Check the coaxial cable of antenna and
the ground wire for connection.
l Only R.H. or L.H. door can be locked or
unlocked.
1)Check the door lock power relay 1 (for front
passenger’s door) or door lock power relay2 (for driver’s door). (Refer to GROUP
42-Central Door Locking System.)
2)Check the keyless entry control unit terminalvoltage. (Refer to GROUP
42-Trouble-
shooting.)
1)Check the keyless entry control unit terminal
voltage (Refer to GROUP
42-Troubleshoot-
ing.)2) Check the harness.
NOTE
l :Perform this check when replacement of the
transmitter and/or
keyless entry control unit or
faulty storage of cryptographic code has been
made.
\
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1 TSB Revision

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Sudemental Restraint System (SRS) Circuit377
IGNITIONSWITCH(IG1)
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.HEADLIGHT.FOG LIGHT
(D-25) 12.BACK-UP LIGHT------------------h-------------__---- ------- - ------- - ----- ---------------&4--nYuInIAnJ
TURN-SIGNAL
LIGHT AND
HAZARD LIGHT
a-
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CLOCKSPRINGr-l-
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1DATA LINKCONNECTOR
DRIVER'S AIR;MU~f~ULE0
05
:,m
3.------
(c-82)
(c-15)(c-71)(c-77)-FRONT SIDE (c-82) (D-04)(D-05)
HRlSM18AB
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Auto-cruise Control Circuit 407
IGNITION
l,25;;yyTE' v2By;y ~'~-- mli
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14
AUTO-CRUISE CONTROL UNIT(c-37)
HR15M24BB
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Auto-cruise Control Circuit
IGNITIONSWITCH(IG2)TRANSAXLE
CONTROL
MODULE
MFI
25B-
SYSTEMSTARTING
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(c-41)17L-R
(c-30)(c-es) L-R
10
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AUTO-CRUISE CONTROL UNIT(c-37)
2B-1I--
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8
PARK/
NEUTRAL
;;sCI;;ON
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i/2B-Y
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HR15M25BB
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Auto-cruise Control Circuit 415
IGNISwIT;;;;;;;LE
MODULE
TICH
2L-E
MFI SYSTEMSTARTING
1.25B-YT \-/ 28-Y/
(c-82)
E
(c-81)-
L-R
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2B-\I
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NEUTRAL
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(B-26)
2B-110
(C-29)
L-R
L-R
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3
hP
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‘P-o- NH’RT---J
OVER DRIVE
AND POWER/
EK!'
5
L-F
5
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(c-45)
R-b
(c-29)
R-l
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1 Q I 1 “&1 L&
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ISUPPLEMENTAL~"y@!!INT
R-WR-Y
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AUTO-CRUISE CONTROL UNIT (c-37)
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HR15M37BB
1 TSB Revision

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Tension-reducer Type Seat Belt Circuit427OPERATION
L0If the driver fastens the seat belt with the ignition switch placed in the “ON” position, the seat belt
switch in the seat belt buckle is turned “ON” to operate the seat belt solenoid in the retractor.
0This will reduce the seat belt rewinding torqe to minimize a sense of oppression given by the belt.
lOwing to the timer function of the ETACS unit, the seat belt solenoid is kept in operation for 30 seconds
after turning off the ignition switch, with due consideration to elimination of the sudden rise in a senseof oppression caused by the belt immediately after the ignition switch is turned off.
TROUBLESHOOTING HINTS
PhenomenonInspection method
Some of the tension-reducers do not operates.0Check dedicated fuse No. 1 and 19.
0Check the inoperative seat belt switch.
lCheck the inoperative seat belt solenoid.
The tension-reducer does not operate with the ignition
0Check the ignition switch input signal.
switch placed in the ON position.
0 Check the ignition switch. (Refer to GROUP
M-Ignition switch.)
The tension-reducer is in operation immediately after the0Check the door switch input signal.
ignition switch is turned off, but it does not stop operationlCheck the door switch. (Refer to GROUP 42-Door
even if the door is opened within 30 seconds from theAssembly.)
turning-off the ignition switch.
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