MITSUBISHI SPYDER 1990 Service Repair Manual

AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND Troubleshooting
Conditions Operation Judgement valueInspection item inspection
page if there is an
abnormality
4Engine: Idling Selector lever Should be noMalfunction Shocks when
Selector lever operation
abnormal shifting
when starting changing from
to
position:(1) shiftshocks and long lag time
(2) shiftTime lag should bewithin 2 seconds
Shocks when
changing from
to
to and long
lag time
DrivingDoes not move
forward
Does not back-up
Does not move
(forward or reverse)
Engine: Idling switch Data list No. 26 A/C load signal A/C load signal
(vehicle
stopped)
system
Selector lever(2)OFF
position:Accelerator pedal Data list No. 45 PressureCode Nos.
(1) Fully closed(1) 55-75 trol solenoid 85 Pressure
(2) Depressed
(2)valve (PCSV) control
(Driving at valve
5 km/h (3.1 mph)
Engine: Idling Accelerator pedal Data list No. 27 Shift control
Code Nos.
(vehicle
(1) Fully closedsolenoid valve 83 Shift control
stopped)
Selector lever (2) Depressed
A (SCSV-A)
solenoid valve A
system
position:Shift control Code
solenoid valve 84 Shift control
solenoid valve
system
Data list No. 23
(1)
rpm Ignition signal
Code No. 23 Ignition signal
system
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AUTOMATIC TRANSAXLE
(TURBO) AND ENGINE> , .
Procedure ConditionsOperationJudgement valueInspection item Inspectionre
page if there is anI
abnormality
Selector EngineData list No. 27Shift control
lever
solenoid valve
Nos.
(1) Idling (vehicle83 Shift controltion:stopped)
Overdrive(2) Driving at
A (SCSV-A) solenoid valve A
system
OFF10 km/h (6(3) 3
(4) 2Shift control(3) Driving atCode Nos. solenoid valve 84 Shift control
constant speed (SCSV-B) solenoid valve of 50 km/h (31
mph) (20 system
or more)(4) Driving atData list No. 21Code Nos.
switch servo
switch system
mph) with(3)selector lever in
2 range
(4)
(5) Driving at Data list No. 38Vehicle speed Vehicle speed
(1) 0 km/hsensorsensor system
mph) with
(2) 10 km/h
selector lever in (3) 50 range (4) 40
Selector Engine Data list No. 31leverPulse generator Code Nos.
tion:(1) Idling (vehicle(3) rpmA (PG-A)
Pulse generator A
stopped) system
Overdrive(2) Driving at
OFF10 km/h (6 Data list No. 32Pulse generator Code Nos.
(3) Driving at(3) rpm ( P G - B )
Pulse generator
constant speedof 50 km/h (31 Data list No. 47
Torque 47 48,mph) (20 se-
er clutch (3) rpm49, Torque
clutch
constant speed
of 40 km/h (25
mph) with Data list No. 49 lever in TorqueCode Nos.
er clutch Torque
(5) Driving at(5)converter clutch
constant speed
solenoid
of 70 km/h (43
mph) withselector lever in For (3) and MalfunctionPoor acceleration
range
acceleration should be while drivingsmooth with no
abnormal vibration.
Vibration
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NOTE
Tests marked with
should be carried out on a road that is as straigh t and level as possible.

AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND ENGINE>
ProcedureConditions OperationJudgement value Inspection item
Inspection procedure
page if there is an
abnormality
Selector lever Engine Data list No. 27 Shift controlCode Nos.
position:(1) Driving atsolenoid valve ,Shift control solenoid
OverdriveconstantA system
ONspeed of 50
km/h (31 mph) orShift control Code Nos. Shift control solenoid
valve system
Data list No. 31 Pulse generator
Code Nos. Pulse generator A
system
Data list No. 32 Pulse generatorCode Nos.
Pulse generator
system
ASelector lever
Monitor scan tool For (2) andMalfunction
Shocks and flare shifts
position:
data list Nos. 27 (3) should match
when shifting
Overdriveand 32. the specified
ON(1) Accelerate to shaftDisplaced
All points gear atspeed (vehicle
shifting points
TPS output of speed), and
1.5
(opening there should be Some points
angle 30%).no abnormal
(2) Slowly shocks. not shiftNo fail-safe codes
erate to a
standstill. For
(5) and
(3) Accelerate to downshifting
should be made Code Nos.
gear at
immediately after Pulse generator A
TPS output of operation.s y s t e m
2.5 (opening
angle 50%).
C o d e(4) At 50 km/h (31
mph) in Pulse generator
gear, turnsystem
overdrive OFF.(5) At 50 km/h (31Code Nos.
mph) in Shift control solenoid
gear, move valve A system
selector lever
to 2 range.
Code Nos.
Shift control solenoid
range, move valve
system
selector lever
to range.
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AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND
ENGINE> Troubleshooting
ProcedureConditions OperationJudgement value Inspection itemInspection procedure
page if there is an abnormality
ASelector lever Monitor scan toolFor(l), (2) andDoes not shift
position:data list Nos. 27 Code(3) should match
Pressure control
Overdriveand 32.the specified system
ON(1) Accelerate to shaft
gear atspeed (vehicle
TPS output of speed), and
1.5
(opening there should be
angle 30%).no abnormalCode Nos. 1
(2) Slowly shocks.gear incorrect ratio
erate to a
standstill. For (5) and
(3) downshifting
gear at
TPS output of
immediately after
operation. Code Nos.
2.5 (opening
gear incorrect ratio
angle 50%).
(4) At 50 km/h (31 mph) in
gear, turnoverdrive OFF. Code
(5) At 50 km/h (31 gear incorrect ratio
mph) in
gear, move
selector lever
to 2 range.
(6) At 20 km/h (12Code Nos.
mph) in 2 gear incorrect ratio
range, move
selector lever
to
range.
Tests marked with should be carried out on a road that is as straight and level aspossible.
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AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND ENGINE>
,
SHIFT PATTERN
Throttle opening
Transfer drive gear speed
50 100 ,
0
50
DIAGNOSIS FUNCTION
METHOD OF READING THE DIAGNOSTIC TROUBLE
CODES
When Using the Scan Tool
Connect the scan tool to the data link connector
at the
lower right of the instrument under cover, and then read the diagnostic
trouble codes.
Caution
Always turn the ignition switch off before connecti ng or
disconnecting the scan tool.
When Using a Voltmeter
Connect a voltmeter to (4) terminal and (6) termina l of the data
link connector underneath the instrument under cove r, and take
a reading of the diagnostic trouble codes from the movement of
the needle on the voltmeter.

AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND
Troubleshooting
Example of flashing when a diagnostic trouble code is output
For diagnostic trouble
code No.
ov
Pause time 3Tens digitDigitsion: 2First digit
Flashing when normal
NOTE
Other diagnostic trouble codes also output as the s ame code numbers as when using the scan tool.
HOW TO ERASE THE DIAGNOSTIC TROUBLE CODES
When using the scan tool
1.Turn the ignition switch to OFF and then back to ON again.
2. Erase the diagnostic trouble codes.
3.Check to be sure that no diagnostic trouble codes e xist.
When using a voltmeter (1) Turn the ignition switch to the OFF position.
(2) After disconnecting the battery cable from the battery
terminal for seconds or more, reconnect the cable.
(3) Turn the ignition switch to the ON position, re ad the diagnostic trouble codes and check that a no rmal code
is output.
,
Revision

AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND
ENGINE> Troubleshooting
INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES
CodeDiagnostic item Reference page
11Throttle position sensor system Excessive
output
12Throttle position sensor systemoutput
13Throttle position sensor system Defective
sensor
14Throttle position sensor system Defective
sensor
adjustment
15
16
21
22
23
Oil temperature sensor system
Oil temperature sensor system
servo switch system
servo switch system
Ignition signal system Open circuit
Short circuit
Open circuit
Short circuit
Open circuit
22
22
22
28
31
32
36
Stop light switch system
Pulse generator A (PG-A) system
Pulse generator
(PG-B) system
Park/Neutral position switch svstem Short circuit
Open circuit
Open circuit Short circuit
23
24
25
26
Torque
converter
37
41
42
43
Park/Neutral position switch system
Shift control solenoid valve A (SCSV-A) system
Shift control solenoid valve A (SCSV-A) system
Shift control solenoid valve
(SCSV-B) system Open circuit
Open circuit
Short circuit
Open circuit
26
27
27
27
Revision

CodeDiagnostic item.
63 Torque reduction execution signal linesShort circuit

AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND ENGINE>
Code No. Throttle position sensor system Probable cause
[Comment] of the throttle If the TPS output becomes 4.6 or more at idle, TPS output is excessive, and of connector
trouble code No. 11 is output. If the TPS output be comes 0.2 or less at times other than l of idling, TPS output is insufficient and diagnostic t rouble code No. 12 is output. If the TPS output
and the target value inside the TCM do not match ev en after compensation is carried out while
the engine is idling, the TPS sensor is defective and diagnostic trouble code No. 13 is output.
If the TPS voltage becomes 0.2 or less or 1.2 or more while the engine is idling, the
TPS adjustment is defective and diagnostic trouble code No. 14 is output.
Check the throttle position sensor
NG Replace
(Refer to GROUP On-vehicle
Inspection of Components.)
OK
Check the following connectors:
l
OK
NG Repair
Check trouble symptom.
NG
Replace the TCM.
Code No. 15, 16 Oil temperature sensor system
[Comment] If the oil temperature sensor output is 4.4 or higher (oil temperature does not increase) evenafter driving for 10 minutes or more, there is an o pen circuit in the oil temperature sensor
and diagnostic trouble code No. 15 is output.
When the oil temperature sensor output is 0.2 or less (for 1 second or more), it is judgedthat there is a short-circuit in the oil temperatur e sensor and diagnostic trouble code No. 16is output.
Probable cause
o f o i l
l T C M
Oil temperature sensor check.
(Refer to NG Replace
OK
Measure at the oil temperature sensorconnectorl Disconnect the connector, and
measure at theconnector side.
l Voltage between terminal (1) and
ground (Ignition switch: ON)
l
Continuity between terminal (2) and
ground
OK:Continuity
OK
Check the following connector: Repair
, I .
Check the harness wire between con-
nectors of oil temperature sensor and
Replace the
l Repair
OK
Check trouble symptom.Check the harness wire between con-
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AUTOMATIC TRANSAXLE
(TURBO) AND ENGINE> Troubleshdoting
Code No.
servo switch c a u s e
[Comment]l Malfunction of servo If the servo switch does not ON in 1 and 3 range within 5 seconds, there is l
Malfunction of connector
an open circuit in the servo switch and diagnostic trouble code No. 21 is output. l
Malfunction of TCM
If the servo switch does not OFF in 2 and 4 range, there is a circuit in
the servo switch and diagnostic trouble code No. 22 is output,
(Refer to
OK
N G Replace
Repair
lDisconnect the connector and I
sure at the harnessside. OK
servo switch and TCM
Check trouble Replace the TCM.
NG
Check the harness wire between the servo switch and TCM con-
nectors. if
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Code No. 23 Ignition signal Probable cause
[Comment]l Malfunction of ignition coil
If ignition pulses are not input to the TCM while t he engine is idling, there is an open circuit l
in the ignition signal line and diagnostic trouble code No. 23 is output.Malfunction of power transistor
l Malfunction of connector
l Malfunction of TCM
Is the engine speed displayed on the
tachometer correct?
Yes
lInspection procedures circuit system (Refer to GROUP
.
NG Repair
OK
Check trouble symptom.
NG
N G Repairpower transistor andTCMconnectors.
the TCM.