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ENGINE AND EMISSION CONTROL Auto-cruise Control System
CONTROL COMPONENT
STOP LIGHT SWITCH
MeasurementFor stop lightFor
conditionscircuitcontrol circuit
terminal No.
terminal
2314
When brake pedal
depressed.0
When brake pedal notdepressed.0 0
CLUTCH PEDAL POSITION SWITCH
Engine (Turbo) and Engine
Measurement conditions
When clutch pedal depressed.Terminal No.
12
0
When clutch pedal not depressed.
PARK/NEUTRAL POSITION SWITCH POSITION)
Engine (Turbo) and Engine>
Measurement Terminal No.Iconditions Engine (Turbo)7 8I
Engine
Selector lever is not at position
Selector lever is at
position 5
8
0
AUTO-CRUISE VACUUM PUMP (Turbo)
and
Engine>
1. Disconnect the vacuum hose from
vacuum
pump and connect a vacuum the vacuum pump.
2. Disconnect the electric vacuum pump connector.
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17-38ENGINE AND EMISSION CONTROL Auto-cruise’ Control
closed>
II
I
Battery
0 0 0 0 0 2 6 4
35 mm (1.38 in.) or more
3. Connect terminal (1) to the battery terminal, and
connect terminals (2) and (3) to the battery
terminal.
4.Check to be sure that the vacuum gauge shows a read ing
of 53 (15.7 or more when (4) is
connected to the battery
terminal.
5.In this condition, check to be sure that the vacuum gauge
shows a 20 (6 or less when terminals (2)
and (3) are disconnected from the battery.
ACTUATOR
Engine (Turbo) and Engine>
1. Remove the actuator.
2.Apply negative pressure to the actuator with the va cuum
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 pressur e is
maintained in that condition.
3.First install the actuator and then inspect and adj ust the
auto-cruise control cable (Refer to
SPEED CONTROL SERVO Engine (Non-turbo)>
Electrical Tests
(1) Turn ignition switch to the ON position.. With the speed
control switch in the ON position, set up a voltmet er to
read battery voltage and connect the riegative lead to
a good chassis ground.
(2) Disconnect the four-way connector going to the servo.
Test pin 3 of the main harness four-way connector f or
battery voltage.
If not, check the power supply circuit for the spee d control
servo.
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C o n t r o l
(3) Connect a jumper wire
servo connector of the main harness and pin 3 of the
speed control servo.The other three pins
should show battery voltage. If not, replace the se
rvo.
(4) Using an ohmmeter, connect one lead to
ground. With the
servo connector of the main harness, the meter shou ld
show continuity. If not, repair the ground
as
necessary. .
Vacuum Test
(1) Remove the speed control cable at the throttle
body end.
(2)Disconnect the electrical connector and
lines at the servo.
(3) Connect battery voltage to pin No. 3 of the
(4) Ground the remaining three servo pins 1, 2
(5) Connect a hand held vacuum pump to the servo va cuum
nipple and apply 10 to 15 inches of vacuum.
(6) The cable should pull in and hold for as long a s vacuum
is applied.
VACUUM SUPPLY Engine (Non-turbo)>
(1) Disconnect the vacuum hose at the servo and ins tall
a vacuum gauge in the hose.
(2) Start engine and observe the gauge at idle. The vacuum
gauge should read at least ten inches of mercury. Shut
off engine, the vacuum should continue to hold inches
of mercury.
(3) If vacuum does not meet this requirement, check and
correct the following vacuum leaks:
Vacuum lines
Vacuum reservoir
Servo vacuum
Poor engine performance
I-cruise control
AUTO-CRUISE CONTROL RELAY
Engine (Non-turbo)>
Battery voltage
Power
isnot supplied
Power is supplied
Terminal
,
,
,0
Page 780 of 2103

ENGINE AND EMISSION CONTROL Auto-cruise Control
AUTO-CRUISE CONTROL
REMOVAL AND INSTALLATION
Engine
(Non-turbo)>
Engine (Turbo)
and
Engine>
76
4
17
00003900
Auto-cruise control cable, throttle
cable and accelerator cable
removal steps
1. Link protectorl Auto-cruise control cable adjustment to .2 .Engine (Turbo) and Engine>
3 .
10. Link bracket Engine
turbo)>
Reservoir assembly and speed
control assembly removal steps
Engine (Non-turbo)>
11. Vacuum hose connection
4. Accelerator cable 12.
13. control assembly
14. Actuator upper bracket
Vacuum pump and actuator
15. Actuator lower bracket
Link assembly removal steps1. Link protector
l Auto-cruise control cable adjustment(Refer to 5. Speed control assembly connection Engine 6. Auto-cruise control cable connection Engine (Turbo)
and Engine>7. Throttle cable connection8. Accelerator cable 9. Link assembly removal steps
Engine (Turbo)
and Engine>
16. Auto-cruise control cable
connection
17. Auto-cruise vacuum pump andactuator assembly
18. Vacuum hose
19. Auto-cruise vacuum pump
20. Actuator
21. Actuator bracket
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ENGINE AND EMISSION CONTROL
Engine (Non-turbo)> (Turbo) and
Powertrain control module removal
steps Engine (Non-turbo)>
l Air cleaner22. Powertrain control module bracket23. Powertrain control module
Auto-cruise removalsteps Engine (Turbo) and Engine>
l side
Auto-cruise control main switch
removat steps
25. Instrument panel switch 26. Auto-cruise control main
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17-42ENGINE AND EMISSION CONTROL Auto-cruise Control System
CAUTION:Beforeremoval of air bag module and clock spring, refer t o the following sections:GROUP SRS Service Precautions.GROUP Air Bag Modules Clock Spring.
5.9 Nm4.3
41Nm30
2 8
Auto-cruise control switch and
clock spring
steps
27. Air bag module (Refer to GROUP
Bag
Modules and Clock Spring.)
28. Auto-cruise control
29. Steering wheel
30. Steering column upper cover
31. Steering column lower cover
l
under cover (Refer to
GROUP Panel.)
32. Clock spring (Refer to GROUP
Bag
Modules and Clock Spring.) 3 8
Sensor removal steps
33. Throttle position sensor
Engine (Turbo) and Engine>
34. Transaxle range switch
Engine (Non-turbo) 35. Park/neutral position switch Engine AA and Engine
36. Stop light switch
37. Clutch pedal position switch
Engine (Turbo) M/T and Engine 38. Vehicle speed sensor
Revision
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ENGINE AND EMISSION CONTROL Control
INSPECTION. .
AUTO-CRUISE CONTROL MAIN SWITCH CHECK
SwitchTerminal No.
ON0
0 0
AUTO-CRUISE CONTROL SWITCH CHECK
17200120082
Measure the resistance between the terminals when e ach
of the SET, RESUME and CANCEL switches is pressed.
If the values measured at this time correspond to t hose in
the table below, then there is no problem.
Switch position Resistance between terminals
Switch OFFNo continuity
CANCEL switch ONApprox. 0
RESUME switch ONApprox. 820
SETswitch ONApprox. 2,700
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ENGINE AND EMISSION CONTROL Auto-cruise System’,
AUTO-CRUISE CONTROL INDICATOR CHECK 17200190052
(1) Remove the combination meter.(Refer to GROUP 54
Combination meter.)
(2) Check the continuity between terminals (10) and (16).
If there is no continuity, replace the auto-cruise control
indicator.
CLOCK SPRING CHECK
Refer to GROUP Air Bag Module and Clock Spring.
THROTTLE POSITION SENSOR CHECK
Engine
(Turbo) and
Engine>17200290011
Refer to GROUP On-vehicle Service.
VEHICLE SPEED SENSOR CHECK
Engine
(Non-turbo) A/T>, INPUT SPEED SENSOR OR OUTPUT
SPEED SENSOR CHECK
Engine (Non-turbo)
Refer to GROUP 54 Combination Meter.
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