1990 MITSUBISHI ECLIPSE ignition

AUTOMATIC TRANSAXLE - Transaxle Control21-47
+TFWNSAXLE CONTROL UNIT
Part b!o. and Ident. No.17504The transaxle control unit functions, based upon the data
signals from the various sensors, to drive the shift controlsolenoid valves “A” and
“B”, and the pressure control solenoid
valve, and to make shifting pattern control and hydraulic
pressure control during shifting.
The transaxle control unit is installed within the passengercompartment, at the lower part of the heater unit.
Connections of the transaxle control unit’s terminals” and
sensors with the drive devices are as described below.
Terminal No.Terminal No.
1Diagnosis control51Pulse generator “A”
2Overdrive control switch52Pulse generator “B”
3Inhibitor switch e R U53Sensor ground
4Inhibitor switch “D”
54Power supply (for sensor)
5Inhibitor switch “L”55 -
6Damper clutch control solenoid valve56Power supply (for backup)
7Shift control solenoid valve “B”57Pulse generator “A”
8Accelerator switch58Pulse generator “B”
9Power/Economy select switch59Kickdown servo switch
10Ground60Throttle position sensor output
11Power supply61Vehicle speed sensor
12Inhibitor switch “P”62Oil temperature sensor
13Inhibitor switch “N”63Ground
14inhibitor switch “2”
15Pressure control solenoid valve
16Shift control solenoid valve “A”
17
-
18Ignition pulse signal
19Diagnosis output
20Air conditioner relay signal
rACCELERATOR SWITCH
The accelerator switch is installed on the upper portion of the
accelerator pedal.
The accelerator switch closes its contacts when the accelera-
tor is totally closed (or the accelerator pedal is completelyreieasedj‘and sends on ON signal to the transaxle control unit.
When the accelerator is depressed, it send an OFF signal to the
transaxle control unit. Whiie the switch is kept ON, for example
when the vehicle is stationary with the accelerator pedal
completely released, the vehicle remains in
2nd gear, but if the
accelerator pedal is depressed sending the accelerator switch
OFF signal to the transaxle control unit, the unit sends a signal
to the shift control solenoid valve instructing it to cause a
downshift to 1 st, thereby producing maximum acceleration.
When the vehicle is stationary, the gear is kept in the .2nd,
which produces an adequate creeping force and also de-.
creases vibrations.

AUTOMATIC TRANSAXLE - Transaxle ControlSELF-DIAGNOStS SYSTEM
The transaxle control unit has self-diagnosis function.
Self-diagnosis codes can be read by connecting a voltmeter to the
diagnosis connector on the side of the junction block.
0: Ground
6%: ELC-MIT
Self-diagnosisThere are 25 diagnosis items, including those items
indicating normal conditions; a maximum of
10items can be stored in memory in the order that
they occur. The memory is supported by a power
supply directly connected to the battery so that it isretained even after the Ignition switch is turned to
the off position.
To clear the memory once an inspection has been
completed. keep negative
(-) terminal of the
battery disconnected for
10 seconds or longer.
r
No.
23
24
Output code
Display pattern
TDiagnosis itemRemarks
NormalAbnormal increases of throttle position
sensor output
Abnormal decrease of throttle position
sensor output
Poor adjustment of throttle position sen-
sorOpen circuit in oil temperature sensor
Once this occurs, output is re-
garded as 2.5 V.Once this occurs, output is re-
garded as 2.5 VOnce this occurs,
oil temperature isregarded as 80°C (176°F).

AUTOMATIC TRANSAXLE - Transaxle Control21-53
I-.
No.-
25Output code
Diagnosis item
RemarksDisplay pattern
Open circuit or poor contact in kickdown
servo switch
IJLluuul~Short circuit in kickdown servo switch
26
-
27
-
28
u1n
CIaD; circuit in ignition pulse pickup
U1Short circuit in accelerator switch or poor
adjustment
UI12A0107
31Computer fault
Fail-safe item
uu-ln
Fail-safe item
1 st gear commanded when driving athigh speed
22
-
33
II u LnnOpen circuit in pulse generator
BFail-safe item
-
41Open circuit in shift control solenoid
valve A
Fail-safe item
nShort circuit in shift control solenoid
valve A
Fail-safe item
42
-
43
UUULMOpen circuit in shift control solenoid
valve
B
Fail-safe item
UULJMShort circuit in shift control solenoid
valve
BFail-safe item
u II II LJM12A0105

23-22BODY - Power Windows
POWER WINDOWS
R’1Power windows are equipped in order to facilitate
A lock switch is provided at the power windows’
the opening and closing of the door glass. The
main switches; when the lock switch is ON, the
driver’s seat switch incorporates a one-touch open
mechanism that causes the driver’s door window towindow cannot be opened or closed by using the
main switch for the front passenger seat window.
open completely once the switch is pressed all the
way, even if it is released immediately.Furthermore, at this time none of the sub switches
can be used for opening or closing the windows,
Main switch
CIRCUIT DIAGRAMIgnition
Battery switch
l-l-
’ 1Fuse ’
Z*,“““”CrPower window main switch
-*W(WlI. _;:
r-
L
--e.
.
I
ELnA
I
Powerwindow
subswitch
(R.H.)
I IOne-touch down (open) circuit
--P’-‘-,
-

23-32BODY - Seat Belts
OPERATION OF AUTOMATIC SEAT BELTS
The operation of the Automatic Seat Belts is as follows.
(1) The belts fasten itself around the occupant when the front
door is closed with the ignition switch in the “ON” position.
(2) The belts release itself from the occupant when the front
door is opened with the ignition switch in the
*“ON” or
“LOCK” or “ACC” position.
(3) The belts cease to fasten itself around the occupant if the
ignition switch is turned to “LOCK” or “ACC” or when the
front door is opened during the belt motion.
(4) The belts for the driver’s and front passenger’s seats
operate independently of each other.
Lever springStopper, Rod A
Sub paw1
Gear B
Rod B19po37:
Sub’pawlIWO374
IStopperGear AI
ISub pai.4 dodB1980376CONSTRUCTION AND OPERATION OF THE
ELR/ALR,
SWITCHOVER MECHANISM
The
ELR/ALR switchover mechanism is installed at the re
tor for the lap belt for the front passenger’s seat,
The component is an assembly supply item, and so is not to be
disassembled. Its construction and operation are, however, as
described below.
Gear
B is coupled with the shaft of the retractor; it rotates in ::the counterclockwise direction when the belt is pulled out.
Gear A is meshed with gear
B, and revolve in the same
direction as gear
B.The illustration
(19PO373) shows the condition when the belt is
completely rewound.
When the belt is pulled out completely, gear A revolves about
three times, and the gear A cam contacts rod A, thereby
pressing rod A. Rod A then presses the stopper, and the
stopper presses the sub
pawl.When the sub pawl is pressed, the internal lock mechanism
functions, and the belt pull-out motion becomes lock, thus
becoming ALR.
When the belt
is rewound about 600 mm (23.6 in.) from the
completely pulled-out position, gear A revolves in the clockwise
direction. with the result that the cam of gear A contacts rod
6and causes rod
B to be pressed.
Rod
B then presses the stopper, thus causing the sub pan -return. thereby unlocking the lock and making pull-out
freti.thus becoming ELR.

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 ‘ncorporated within the key cylinder.
“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.