1989 MITSUBISHI GALANT Service Repair Manual

AUTO-CRUISE CONTROL SYSTEM - Service Adjustment procedures13-403
(2) Checking the motor (PULL direction) and limit switch
operation
In the condition described in
(1). connect terminal (2) of
the actuator, through the ammeter, to the positive
(+)
side and terminal (4) to the negative (-) side.
Actuator side
connector
16R1082
~1 L-E~~~~~~
stroke (fully open). A:: 0.5-0.7Abetween shaft andAI : 0.5-0.7Ametal
A Z: less than 0.5A
l Insufficient thrust
(when current ON) clearance
Selector doesn’t move. l Shaft burned Azequal
or more than IA l Foreign material
caugt
AI : 0.5-0.7Abetween gears
l Motor burned
Selector doesn’t move. Az=OA
A I:
0.3-0.7A
l Damaged or
disconnected internal
lead wire
l Damaged or disconnected motor
wiring
0 Poor contact of limit
switch
l Open diode
Nith the selector stroke The selector doesn’t return toMalfunciion of clutch3t the intermediate level,
the original position even if
operationdisconnect
the
the current to the clutch coil
(Clutch plate remains
:onnection to terminalis cut. engaged with clutch)
3) and cut the current
low to the clutch coil.
1t
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13-404AUTO-CRUISE CONTROL SYSTEM - Service Adjustment procedures
(3) Checking the motor (REL. direction) and limit switchoperationReverse the connections to terminal (4) and terminal
(2)
from those described in (2).
c
Actuator sideconnector
II*
16R1081
Judgement
Normal
Current is cut off when
selector is turned in REL. direction for full
stroke (fully closed).
A, : 0.5-0.7AAZ: less than
0.5A
(when current ON) Abnormal
Selector moves in
REL.
direction but
Apequa or more than IA
A,: 0.5-0.7A
Selector doesn’t move. ATequal
or more than IA
AI : 0.5-0.7AI
cSelector doesn’t move Az=OA
A, :
0.3-0.7A
-I
1
I
i
1
Probable cause1
l Improper backlash
between gears
l Imminent burning
between shaft and
metal
l Insufficient thrust
clearance
l Shaft burned
l Foreign material caugh
between gears
l Motor burned
l Damaged or
disconnected internal
lead wire
l Damaged or
disconnected motor
wiring
0 Poor contact of limitswitch
l Open diode
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AUTO-CRUISE CONTROL SYSTEM - Sewice Adjustment Procedures
ECU connector terminals
19171513ll><7531
2018161412 101 98642
16A1060
ELECTRONIC CONTROL UNIT (ECU) SIGNAL CIRCUIT
CHECK
Disconnect the connector of the ECU, and then check at the
body side wiring harness according to the chart below.
IG SW: Ignition switch
MAIN SW: Main switch
OD SMI: Overdrive switch
Termi-~ Connection or mea-
nal
~
sured part Measure-
Tester con-
ment item nection
Check conditions
Standard
I-
I-
1 ~
Actuator (motor) Resistance1 - “‘2Actuator selector Approx. 120
(Fully closed position)
1
2
3I Stop light switchVoltage3-Ground ~
IG S/W ON, Main SW O
N
Battery positive
~
(for auto-cruise ~
control cancellation)
j )
i (Don’t press brake pedal.)j voltage
and actuator (clutch)I Press brake pedal after checkingBattery positive
5 1 Power supply (MAIN)
/ above.voltage -0V
Voltage5-Ground
1 IG S/W
ON, Main S/W ONBattery positive
voltage
6None-i -i-
7 1
Power supply (IGz)Voltag
e
7-GroundIG SfW O
N
Battery positive
voltage
8*z ~
On-board diagnostic--i- -
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9Accelerator pedal Voltageg-GroundIG SW O
N
Battery positive
switch
(Accelerator pedal free)voltage
1 Press accelerator pedal after/ Battery positive
II checking above.[voltage -0V
IO I Vehicle speed sensor
Voltage1 O-Ground’ W
ith the ignition key at the ON
’ ~
4 voltage
position, slowly turn the speedom- changes/
ca-
eter cable. ble
rotation
11SET switch
Continuity1 l-Ground ’ SET switch ON (Press) Continuity
SET switch OFF (Release) No continuity
12OD switch
13RESUME switch 1
Voltage
Continuity
12-GroundIG SNV ON OD SW ON position
Battery positive
voltage
OD
SW OFF position ~
OV
13-Ground ~
RESUME switch ON (Turn) Continuity
; RESUME switch OFF (Release)
No continuity
14’2 ~
4 A/T control module( -/- I- !
-
I/15 1 Stop light switch load
~
Voltage15-Ground’ Press the brake pedal.Battery positiveside/voltage
16 j Ground
Continuity1 16-GroundAt all times ~
Continuity

13-406AUTO-CRUISE CONTROL SYSTEM - Service A&tment ~mcec~ure~
Termi-
nal
17
18
19
20
l-
it
L
Connection of mea-
sured part Park/neutral position
switch (P, N)
T
f
+
Stop light switch
power supply side
Continuity ~
17-Ground
1
.~.~.~ ~.-. _ - ~~- -~/Voltage)
18-Ground
~~
____~ _~ ~.. ----+--.. .-~
Clutch pedal position
Voltage1 1 g-Groundswitch
Measure-1
Tester
ment item 1
connection
Ground
1 ~
Continuity ~
20-Ground
-Conrroljunitj I! @jIII LNOtOMl ‘-r’
+-j-
--J--L--
Actuator motor
03R0210
Check conditionsStandard
“P” or “N” rangeContinuity
Other than “P” or “N” range
,No continui-
v
At all timesj Battery positive
IG S/W
ON
Clutch pedal position switch OFF
At all times/ Continuity 1
NOTE
1. As shown by the “1 symbol, the limit switch within the
actuator will become as shown in the figure at the left if
the. actuator selector is at the fully closed position when
the resistance between terminals No.
1 and No. 2 i
s
measured; for that reason, after checking the polarity of
the tester, the tester’s probe should be connected so that
current flows from the No. 1 terminal to the No. 2
terminal.
2.For terminals No. 8 and 14 indicated by the “2
symbol, it is
necessary to check individual terminal voltages with the
ECU’s harness connector connected and with the ignition
switch ON.
(1) The
No.8 terminal is normal if the diagnostic trouble
code can be confirmed. (Refer to
P.13-361.)
(2) The No. 14 terminal is normal if there is approximately
12V with the auto-cruise control system not functioning
and the overdrive switch switched ON. (Refer to
P. 13-349.)
VEHICLE-SPEED SENSOR INSPECTION
Refer to GROUP
54-Meters and Gauges for checking of
vehicle speed sensor.
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AUTO-CRUISE CONTROL SYSTEM - Setice Adjustment procedures13-407
=\
07A005.1
Controlvalve
L2
07AOO50
AUTO-CRUISE CONTROL VACUUM PUMP INSPECTION

Inspection of solenoid valves (control valve, release valve)
(1) Remove the auto-cruise control vacuum pump connector.
(2) Measure the resistance value between terminals
0-0
and between 0-0.
Standard value: 50-60 Q
(3) Check that the solenoid valve makes an operating noise
when batten/ voltage is impressed between terminals
0-0 and between 0-0.
(4) If there is a malfunction of the solenoid valve, replace the
auto-cruise control vacuum pump assembly.
Motor inspection
(1) Remove the auto-cruise control vacuum pump connector.
(2) Check that the motor revolves when battery voltage is impressed between terminals
@-0.
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(1) Remove the actuator.
(2) Apply negative pressure to the actuator with the vacuum pump and check that the holder moves more than 35 mm
(1.38 in.). In addition, check that there is no change in the
position of the holder when negative pressure is main-
tained in that condition.
(3) First install the actuator and then inspect and adjust the cruise control cable (Refer to
P.13-394.)
VEHICLE-SPEED SENSOR INSPECTION
Refer to GROUP
54-Meters and Gauges for checking of
vehicle speed sensor.
ACCELERATOR SWITCH INSPECTION
Refer to GROUP
23-Troubleshooting.

13-408AUTO-CRUISE CONTROL SYSTEM - Auto-cruise Control
AUTO-CRUISE CONTROL
REMOVAL AND INSTALLATION
1 4-6
Nm3-4 ft.lbs.
Post-installation Operationa Accelerator Cable Adwstment (Referto P. 13-398.)
,**.“qy “y ,,,,ezls:’ 3 -. .- ,*%L’J
01
,\@&&,
-<28- E+c- - - --.c,
T
$$y= *g i ;g+j$T
-3
18
Removal steps of actuator
1. Protector
2. Accelerator cable B adjusting nut
3. Accelerator cable A adjusting nut
4. Actuator side inner cable 5. Actuator connector
6. Actuator
7. Air hoses
8. Bracket
Removal steps of sensor and switches 9. Accelerator switch
10. Stop light switch11. Clutch pedal position switch
12. Park/neutral position switch
13. Vehicle speed sensor (Refer to GROUP
54-Met&sand Gauges.)
14. Auto-cruise control switch (Refer to GROUP
54-Column Switch.)
Removal steps of control unit
15. Instrument under cover
16. Lap shower duct and foot shower nozzle
17. Control unit
18. Auto-cruise control indicator light (Refer to
GROUP
54-Meters and Gauges.)
9’ -L.-lI I07A0024
falQA0237
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AUTO-CRUISE CONTROL SYSTEM - Auto-cruise Control

*Accelerator Cable Adjustment
Removal steps of actuator
1. Link protector
2. Throttle cable
3. Accelerator cable
4. Auto-cruise control cable
5. Auto-cruise pump connector
l * 6. Vacuum hose7. Link assembly
8. Pump bracket
9. Auto-cruise pump assembly
IO. Auto-cruise bracket11, Actuator bracket
12. Auto-cruise actuator
1307AOO58
9-14 Nm7- 10 ftlbs.
21
19AO237
Removal steps of sensor and switches
13. Accelerator switch 14. Stop light switch
15. Clutch pedal position switch
16. Park/neutral position switch
17. Vehicle speed sensor (Refer to GROUP
54-Meters and Gauges.)18. Auto-cruise control switch (Refer to GROUP 54-Column Switch.)
Removal steps of control unit
19. Instrument under cover
20. Lap shower duct and foot shower nozzle
21. Control unit
22. Auto-cruise control indicator light (Refer to
GROUP 54-Meters and Gauges.)
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.-

13-410AUTO-CRUISE CONTROL SYSTEM - Auto-cruise Control
INSPECTION
l Check the inner and outer cable for damage.
l Check the cable for smooth movement.
l Check the actuator cover for damage.
CHECKING THE ACTUATOR Refer to
P.13-397.
M13lDCC
SERVICE POINTS OF INSTALLATION
6. INSTALLATION OF VACUUM HOSE Align the marking end of the vacuum hose to the clampposition and install.
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I