-_ - .--.7
!21-20AUTOMATIC TRANSAXLE - A/T Safety-lock System
SHIFT LOCK DEVICE
When brake pedal is not depressed
Brake pedal link mechanismWhen brake pedal is depressed
Detent pin
Shift lock pini
Brake
Shift lock cable
-JIOuter cableInner cable
\\
/IShift loc&
OQAO155-
Ret& springOBAOl53
The shift lock device consists of the brake pedal
link
mechanism and the shift lock cable. When the brakepedal is depressed, the shift lock pin combined in
one unit with the inner cable moves into the outer
cable.
L
I(1) Wheh brake pedal is not depressed
IWhen the shift lever is in the “P” position and
the brake pedal is not depressed, the shift lever
cannot be operated into the position other than
the
“P” position despite an effort to operate the
lever, because the shift lock pin combined with
the inner cable in one unit prevents the detent
pin movement, making it impossible to depress
the push button of the shift lever.
(2) When brake pedal is depressed
When the shift lever is in the “P” position and
the brake pedal is depressed from the released
state, the inner cable of the shift lock cable is
’ !I
Ipulled by action of the brake pedal linkage. In
this case, the shift lock pin at the end of the
inner cable is also pulled and the detent pin isreleased.Therefore, the shift lever can be shifted to the
positions other than the “P” position.
NOTEEven if the brake pedal is depressed with the
ignition key in the LOCK position or the key
removed from the ignition lock, the selector
handle cannot be shifted to the positions other
than the “P” position. (Refer to (2) Key interlock)
(3) When shifting from positions other than “P”position to
“P” position
When shifting is made from the positions other
than “P” position to the
“P” position, it is not
necessary to depress the brake pedal because
the detent pin moves to the
“P” position whilepushing the shift lock pin. If the push
buttotisreleased, the detent pin moves to the
position (upward) and the return spring provided
in the outer cable returns the shift lock pin to
thestate described in (1). This will fix the shift lever
in the “P” position.
AUTOMATIC TRANSAXLE - A/T Safety-lock System21-21KEY INTERLOCK DEVICEWhen shift lever is in positions
When shift lever is in “P” position
LOCK
\Hcjok
Projection of rotorother than “P” position
KC position
Hook
\ \Detent pin
Lock &mThe key interlock device consists of the ignition key
cylinder, interlock cable and the lock cam installed
inside the selector handle. The lock cam is inter-
locked with the detent pin and their movement is
‘transmitted to the hook inside the ignition key
Q4inder through-the key interlock cable.
!l) Shift lever is in “P” position
a. When the shift lever is in the
“P” position.
j..the hook inside the ignition key cylinder is SO
i-.3positioned that it does not interfere with the’ .L.,projection of the rotor. Therefore, the rotor
:‘-can turn freely, allowing the ignition key to
be turned to the LOCK position and pulled
out there.
is, b. When the ignition key is turned to the LOCK
i,- c.position or it is pulled out, the projection of‘..the rotor moves to the position where it
prevents the hook inside the key cylinder
from moving. Therefore, even if an effort is
made to depress the push button of the shift
lever, the lock cam prevents the detent pin
from moving and the shift lever cannot be
shifted to the positions other than the “P”nnrit;nn
09*0090
(2) When shift lever is in position other than “P”position
When the shift lever is in the positions other
than the
“P” position (for example. “N” posi-
tion), the lock cam turns clockwise and held in
that
.state as shown in (2) of the illustration.
Therefore, the key interlock cable is in a stroked
state, with the hook inside the ignition key
cylinder inserted in the notch made in the
projection of the rotor. Thus, even if it is
attempted to return the ignition key to the
“LOCK” position, the hook prevents the rotor
from turning and the ignition key can be turned
only up to the
ACC position, making it impossi-
ble to pull out the key.
23-20BODY - Central Door LocksCENTRAL DOOR LOCKS
Ri... 4sThe central door-lock system, by which all doors can
be locked or unlocked (from the inside by using the
inside door lock knob at either front door, or from
the outside by using the door key), not only sewes
to reduce the trouble of individually locking orunlocking each door when passengers get out or
get in, but also maintains passenger safety.
For the central door-lock system, the operation of
the lock actuator is regulated by the door control
unit.
Door lock actuator(right side)Door-control unit
(left side)
Door lockcontrol relay16A0464
PTC heater
/MotorISwitchDOOR LOCK ACTUATOR
The actuator is light in weight and is the highly reliable motor
We.
NOTE
The door lock actuator incorporates an internal PTC thermist’-so as to Prevent damage as the result of overheating of
L
motor.*: PTC
is an acronym for Positive Temperature Coefficient.
The thermistor with a positive temperature coefficient
ofresistance provides more resistance as it generates
heat,thus limiting current and controlling the amount of
haat
generated.
BODY - Central Door Locks23-21
IBattery
1IJDoor lock 4Door lockactuator t(left side)actuator
(right side) -Battery
Init !,WF%;$TlON OF THE CENTRAL DOOR
When the doors are locked (by using the inside lock
knobs or the door key), the door lock switch
(incorporated within the door lock actuator) is
switched OFF, and then, because current flows to
the fuse, as well as to the door-control unit and the
lock timer, the lock timer causes base current to
flow to
TrI for 0.5 second, thus switching ON Tr,. As
a result, current flows to the fuse, as well as to the
“lock” side coil of the door lock relay,
Tr,, and to
ground, thus switching ON the “lock” side contacts
of the door lock relay and activating the door lock
actuators, thereby locking the doors.
When the doors are unlocked (by using the inside
lock knobs or the door key), the door lock switch
(incorporated within the door lock actuator) is
switched ON, and then, -because current flows to
the fuse, the door-control unit and the lock timer,
the lock timer causes base current to flow to
Tr? for
0.5 second, thus switching ON
Tr7. As a result,
current flows to the fuse, as well as to the “unlock”
side coil of the door lock relay,
Trp, and to ground,
thus switching ON the “unlock” side contacts of the
door lock relay and activating the door lock
actuators, thereby the doors.
(left side)(right
side) -
23-36BODY -Seat Belts
IRCUIT DIAGRAM
Ignition
switch
(IGIlFusible llnk @
-T- --T-
A10“When “When
key iskey isremoved installed
Fusible link @
Buckleswitch
(Automatic seatbelt
control unit connector
terminals)leiease
witch
?r$r’s
0Motor
c,OFF
6
Door latchswitch ’fDr:r’s
Door latchswitch
(Passen-ger’s side)
A?
-f&19*0343
23-38BODY - Seat Belts
Motor (L.H.,
R.H.)
Manual Procedure
Door Latch Switch (L.H., R.H.)
7
nstalled to the quarter panel.
The motor operates to move the slide anchor.t receives direction of rotation, start, and stop signals from the
:ontroi unit. and operates according to these signals.Jote that an automatic seat belt motor relay is installed at the motor.f. due to a malfunction, the slide anchor stops before it reaches the2nd of its travel, note that the slide anchor can also be movednanually by using the hexagonal wrench included with the vehicle.
-ocated at the door latch.
rhese switches detect the open/close condition of the doors.
The following components also constitute the automatic seat belts system.
Ignition Switch (“ON” position)
Kev-reminder Switch
(A. B)
Buzzer
rhis switch sends a High signal to the control unit when the ignition
“ON” signals are sent to the control unit by switch A while the key is
inserted in the key cylinder; “ON” signals are sent by switch
Bwhen the key is not in the key cylinder.
Located at the rear side of the instrument panel.The power for this buzzer is supplied from the battery through fuse
No. 1.
Note that the buzzer sounds an alarm to warn that the key has beenleft in the ignition.
BODY - Seat Belts23-39
OPERATlON
Belt Fastening Motion
(1) If the belt is not in the fastening position (the
L.H. or R.H. door latch switch at Door Closed
position; the L.H. or R.H. “fasten” switch at
“ON” position) when the door is closed with the
ignition switch in the “ON” position, the belt
automatically moves to the fastening position.
For the period between the initiation and com-
pletion of the belt’s motion in the fastening
direction, the seat belt warning light either stays
lit or blinks.
Belt Releasing Motion
(1) When the belt is not in the release position, the
L.H. or R.H. release switch is in the “ON”
position, and the left or right door is opened, the
belt will automatically move to the release
position if the ignition switch is at either the
“ON”,“LOCK” or “ACC” position.
For the belt at the driver’s seat side moveover,
the belt will automatically move to the release
position if the
key is taken out while the belt is
fastened.
The buzzer sounds for approximately 0.7 secondsince the start of thebelt’s motion.When the belt is completely fastened, the
“fasten” switch is switched OFF and the motor
stops.(2) With a lapse of approximately 60 seconds after
the belt has stopped its fastening motion due to
foreign object wedged in the mechanism, the
protective timer of the control unit is activated
causing the motor output to the shut off.
When the belt completes its releasing motion,
the L.H. or R.H. release switch is turned OFF,
and the motor stops.
(2)If the belt is still in the process of releasing with
a lapse of approximately 60 seconds after the
start of motion, the protective timer in control
unit is activated causing the motor output to be
shut off.
At the same time, the buzzer sounds for
approximately 0.7 second.
Ignitionswitch
(ONI I------(LOCK or ACC) -J
Warning
light
I-6 sec. ’
cWARNING SYSTEM
Warning Alarm when Ignition Switch is Activated
When the ignition switch is moved from the “LOCK” or “ACC”
position to the “ON” position, the warning light illuminates
continuously for approximately 6 seconds.
If, within the time, the ignition switch is moved from the “ON”
position to the “LOCK” or “ACC” position, the warning light
illumination will stop.
BODY- Seat Belts*23-41
switchDriver’s
side buckle
switch
Buzzer(ON’ XL(OFF)
,: Approx. 0.7 sec./cycle
Key-reminder (ON)switch (A) (OFF)
Buzzer
19Poo270
Automatic seat belt control unit
connector terminals
lsPo2eeWarning Alarm when the Driver’s Lap Belt is not Fastened
When, with the driver’s lap belt unfastened (the buckle switchis switched ON), the ignition switch is tunrned from the
“LOCK” or
“ACC” position to the “ON” position, the buzzer
will sound intermittently for approximately 6 seconds. If,however, the driver’s lap belt is fastened during that time, the
buzzer will be switched
OFF.
Note that the warning light when the ignition switch isactivated will also illuminate when the ignition switch is turned
from the “LOCK” or “ACC” position to the “ON” position.
Warning Alarm when the ignition Key is Left in the Ignition
The buzzer will sound continuously when all of these condi-
tions occur simultaneously: the key is in the key cylinder
(key-reminder switch A is switched ON), and the ignition
switch is at the “LOCK” or “ACC” position, and the driver’s
door is open (the door latch switch “open” is switched ON).
Warning Alarm when an Automatic Seat Belt Starts to
Move toward the “Release” Side
When the driver’s or front seat passenger’s automatic seat belt
starts to move toward the “release” side, the buzzer sounds
for approximately 0.7 second.AUTOMATlC SEAT BELT CONTROL UNIT INPUT/OUTPUT
SIGNALS
Power Supply and Ground Circuit
INameITerminal No.IVoltage levelI
I Battery (+B)I11I H 1
I Ignition switchI ’ IH or LI
IGroundI7, 17Io.ovI
NOTEH and L in the voltage level column indicate the terminal voltage Of
each signal.H: Battery voltageL:Ground voltage (0.8V or less)