
Throttlesensor powersensor output
(2) Turn throttle position sensor clockwise
tighten screws.
(3) Check for continuity between terminals No. 3 (c losed
throttle position switch) and No. 4 (ground).
If not continuity with the throttle valve fully close d,
turn the throttle position sensor counterclockwise, and
then check again.

CONTENTS
AUTO-CRUISE CONTROL SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
AUTO-CRUISE CONTROL* . . . . . . . . . . . . . . 40
GENERAL INFORMATION . . . . . . . . . . . . . . . . 7
ON-VEHICLE SERVICE. . . . . . . . . . . . . . . . . 33
Auto-cruise Control Cable Check and
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
Auto-cruise Control Component Check . . . . . 37
Auto-cruise Control System Operation Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
SERVICE SPECIFICATIONS . . . . . . . . . . . . . 8
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . 8
TROUBLESHOOTING
ENGINE (NON-TURBO)> . . . . . . . . . . . 9
TROUBLESHOOTING
(TURBO) AND ENGINE> . . . . .
EMISSION CONTROL’ SYSTEM
. . . . .
CATALYTIC . . . . . . . . . . . . . .
General Information . . . . . . . . . . . . . . . . . . 57
EVAPORATIVE EMISSION .
SYSTEM. . . . . . . . . . . . . . . .
Air Conditioning . . . . . . . . . . . . . . . . . . . 52
Component Location
. . . . . . . . . . . . . . . . . .
Engine Coolant Temperature Sensor
Intake Air Temperature Sensor . . . . . . . . . . . . 52
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRA INT SYSTEM (SRS) EQUIPPED
WARNING!
(1) Improper serviceor maintenance of any component of the or any SRS-related can to injuryorcleathtoservicepersonnel (from inadvertentfiring the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly rev iew this manual, and especially its GROUP
Restraint System (SRS) and GROUP 00 Maintenance Service, before any service or maintenance of any
componentof the SRS or any SRS-related component.
NOTEJhe includes the following components: warning light, air bag module, clock components (that may have to be removed/installed in connection with or areIndicated in the table of contents by an asterisk
![MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE AND EMISSION CONTROL Auto-cruise System
INSPECTION PROCEDURE 6
Auto-cruise control cannot be set.
[Comment]A malfunction of the auto-cruise control switch circuit may exist. MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE AND EMISSION CONTROL Auto-cruise System
INSPECTION PROCEDURE 6
Auto-cruise control cannot be set.
[Comment]A malfunction of the auto-cruise control switch circuit may exist.](/manual-img/19/57345/w960_57345-754.png)
ENGINE AND EMISSION CONTROL Auto-cruise System
INSPECTION PROCEDURE 6
Auto-cruise control cannot be set.
[Comment]A malfunction of the auto-cruise control switch circuit may exist.
c a u s e,lMalfunction of the auto-cruise control switch
l M a l f u n c t i o n o f spring.
l Malfunction of the connector.
l
of
Auto-cruise control switch checkN G
Measure at clock spring connector
Disconnect the connector and mea-
* Voltage between terminal (3) and
and 40 Check trouble symptom.
Check the harness between the clockspring and ground. Repair, if necessary.
INSPECTION PROCEDURE 7
Hunting (repeated acceleration and deceleration) oc curs at the
set vehicle speed.
[Comment]
A malfunction of a speed sensor, the speed control servo, or the vacuum supply may be present.
For vehicle speed sensor checkFor input speed sensor or output speed sensor check(Refer to GROUP 54 Combination Meter.)
Speed control servo checkN G
Probable cause
lMalfunction the vehicle speed sensor lMalfunction of the input speed or outputspeed sensor l Malfunction of the l Malfunction of the vacuum supply.
l Malfunction of the PCM.
OK
Vacuum supply check (ReferNG
the PCM.
INSPECTION PROCEDURE 8
When the auto-cruise control main switch is ON, the switch
indicator on the instrument panel does not illumina te.
(However, auto-cruise control is normal.) Probable cause
[Comment]l
Malfunction of the auto-cruise control main
Blown bulb in auto-cruise control main switch.switch.
theau t o - c r u i s e c o n t r o l m a i n s w i t c h .
TSB Revision
![MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE AND EMISSION System
.,
INSPECTION PROCEDURE 3
Input switch inspection using the scan tool is pdssible.
(However, diagnostic inspection is possible.)
I
[Comment]A malfunction MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE AND EMISSION System
.,
INSPECTION PROCEDURE 3
Input switch inspection using the scan tool is pdssible.
(However, diagnostic inspection is possible.)
I
[Comment]A malfunction](/manual-img/19/57345/w960_57345-764.png)
ENGINE AND EMISSION System
.,
INSPECTION PROCEDURE 3
Input switch inspection using the scan tool is pdssible.
(However, diagnostic inspection is possible.)
I
[Comment]A malfunction of auto-cruise control switch circuit system may be present.l
Malfunction of the auto-cruise control l Malfunction of the clock spring .
l of the connector.
l Malfunction of the harness.
.
NG
(Refer to
Measure at clock spring connector
l sure at the harness side
l Voltage between terminal (2) and
groundOK: Battery positive voltage
OK
Check trouble symptom.
C h e c k t r o u b l e spring and auto-cruise
INSPECTION PROCEDURE 4
When brake pedal is depressed, auto-cruise control does not
cancel.Probable , ,
[Comment]A malfunction of stop light switch or a malfunction of stop light circuit may be present.l
Malfunction of the stop light switch.
l Malfunction of the connector.
l Malfunction of. the
l Malfunction of the auto-cruise control-ECU.
Does stop
illuminate?
No
Replace the auto-cruise control-ECU.
lDisconnect the connector and mea-sure at the harness side.
Check trouble symptom.Check the following connectors:
TSB Revision
![MITSUBISHI SPYDER 1990 Service Repair Manual 17-28ENGINE AND CONTROL Auto-cruise Control System
INSPECTION PROCEDURE 9
Auto-cruise control cannot be set. c a u s e
[Comment] Malfunction of the auto-cruise control main
A malfun MITSUBISHI SPYDER 1990 Service Repair Manual 17-28ENGINE AND CONTROL Auto-cruise Control System
INSPECTION PROCEDURE 9
Auto-cruise control cannot be set. c a u s e
[Comment] Malfunction of the auto-cruise control main
A malfun](/manual-img/19/57345/w960_57345-767.png)
17-28ENGINE AND CONTROL Auto-cruise Control System
INSPECTION PROCEDURE 9
Auto-cruise control cannot be set. c a u s e
[Comment] Malfunction of the auto-cruise control main
A malfunction of switches or that the fail-safe fun ction auto-cruise control may beswitch.
present.lMalfunction of the auto-cruise control l Malfunction of the clock l Malfunction of the harnesses or connectors.l of the clutch pedal position switch
lMalfunction of the park/neutral position switch
l Malfunction of control-EC@
Can the auto-cruise control communicate with the sc an
NoInspection for each trouble symptom.(Refer to inspection procedure No. 2 on
Yes
Is input switch inspection possible with the scan tool?
Yes
Inspectionfor trouble symptom.
(Refer to inspection procedure No. 3 on
Dose the input switch code or 27 remain output? Yes
No
Dose the input switch code or 26
No
Replace the auto-cruise control-ECU.
Yes lStop(Refer to inspection procedure No. 14 on lClutch pedal position switch or tion switch input circuit system [code
INSPECTION PROCEDURE 10
Hunting (repeated acceleration deceleration) occurs at the
set vehicle speed.
l Malfunction of the vehicle speed sensor.
A malfunction of vehicle speed sensor or incorrect vacuum in the auto-cruise vacuum pumplMalfunction of the auto-cruise l Malfunctionl Malfunction of the auto-cruise control-ECU.
Revision
Auto-cruise vacuum pump check (Refer to NG Replace
Actuator check (Refer to

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

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
(Non-turbo) A/T>, INPUT SPEED SENSOR OR OUTPUT
SPEED SENSOR CHECK
Engine (Non-turbo)
Refer to GROUP 54 Combination Meter.
TSB Revision

CONTENTS
MANUAL TRANSAXLE ENGINEMANUAL TRANSAXLE ENGINE
(NON-TURBO)>(TURBO) AND ENGINE>
GENERAL INFORMATION . . . . . . . . . . . . . . 22GENERAL INFORMATION . . . . . . . . . . . . . . . .
2
LUBRICANTS. . . . . . . . . . . . . . . . . . . . . . . . . . 24LUBRICANTS. . . . . . . . . . . . . . . . . . . . . . . . . . .6
ON-VEHICLE SERVICE. . . . . . . . . . . . . . . . .
2 4
Transaxle Oil Level Check . . . . . . . . . . . . . . . .
24
Transaxle Oil Replacement . . . . . . . . . . . . . . .
24
SERVICE SPECIFICATIONS. . . . . . . . . . . . .24
SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . . . .24
TRANSAXLE ASSEMBLY. . . . . . . . . . . . . . .28
TRANSAXLE CONTROL*. . . . . . . . . . . . . . . .25ON-VEHICLE SERVICE
. . . . . . . . . . . . . . . . 8
Shift Lever Assembly
. . . . . . . . . . . . . . . . . . . . .
27
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . .24
Transaxle Oil Level Check . . . . . . . . . . . . . . . . .8
Transaxle Oil Replacement
. . . . . . . . . . .. . .
Transfer Oil Level Check ...... . . . . . . . . . . .
Transfer Oil Replacement. . . . . . . . . . . . . . . . . .8
SERVICE SPECIFICATIONS. . . . . . . . . . ...
SPECIAL TOOLS 7. . . . . . . . . . . . . . . . . .
TRANSAXLE ASSEMBLY
. . . . . . . . . . . . . . . . . . . . ... . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 1 2
TRANSAXLE CONTROL*... . . . . . . . .
Shift Lever Assembly. . . . . . . . . . . . . . . . . . . . . .1 1
TRANSFER ASSEMBLY . . . . . . . .
TROUBLESHOOTING . . . . . . . . . . . . . . . . . .
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRA
INT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1)Improper service or maintenance of any component of the or any component, can lead to personalinjury or death to service personnel (from inadvertent firing of the air bag) or to the driver and passenger (from
rendering the inoperative).Service or maintenance of any or component must be performed only at an authorized MITSUBISHI dealer.(3)MITSUBISHI dealer personnel must thoroughly review this manual,and especially its GROUP
Restraint System and GROUP 00 Maintenance Service, before beginning any or maintenance of
any component of the or any component.
NOTEThe SRS includes the following components: warning light, air bag module,clock spring, and interconnecting
wiring. Other
components (that may have to be removed/installed in connection with service or maintenance)
are indicated in the table of contents by an asterisk