1990 MITSUBISHI SPYDER sensor

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> 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
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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
ENGINE (TURBO) AND ENGINE> Troubleshooting
INSPECTION CHART FOR TROUBLE SYMPTOMS,
Malfunction when
starting
I
I
Engine stalling during shifting6
Shocks when shifting from to and long lag time7 37
Shocks when shifting from
to and long lag time6
when
Shocks when to to and long lag
time
Shocks and flare shift
.
late shiftAll points
Some points
not shift
while
No fail-safe codes13 42
Poor acceleration
14
Vibration
switch system 16
throttle position switch system17
load signal system18
speed sensor system
Trouble symptom
Communication with scan tool is not possible Inspection
procedure No. Reference page
,
1 33
Driving impossible Starting impossible (will not crank)
Does not move forward
Does not back-up
34
Does not move (forward or reverse)I5
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,
9
10
I I
12
15
45
19

AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE,
INSPECTION PROCEDURE 14
Poor accelerationI
[Comment]l Malfunction of clutches and brakesWhile driving, acceleration is poor even if downshi fting is performed. In such cases, the causeMalfunction of engine system
is probably a defective clutch or brake, or a defec tive engine system.
Refer to Automatic Transaxle Overhaul
Engine system check
lCheck the control system, ignition system, fuel sys temand main engine system, and confirm that everything
is normal.
lIf there is an abnormality, repair or replace the enginesystem.
After completion
Clutch and brake check
lCheck each end play, and if they exceed the standar d
l Check for burning and wear in each facing.
INSPECTION PROCEDURE 15 ,
l VibrationProbable cause
[Comment] l Abnormal torque converter pressure
Vibration occurs when driving at constant speed or when accelerating in top range. In such l
Malfunction of engine system
cases, the cause is probably abnormal torque conver ter clutch pressure or a defective torque
Malfunction of torque converter converter. o f v a l v e b o d y
Refer to Automatic
sensor connector is disconnected?
No
Yes
Standard value: (64-92 psi)
OK
If it is considered that the damage or chipping can not
be repaired, replace the valve body assembly.
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AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE>
INSPECTION PROCEDURE 16. .
l Overdrive switch system Probable cause .
[Comment]l Malfunction of overdrive switch In cases such as the above, the cause is probably a defective overdrive switch circuit or defectivelMalfunction of ignition switch circuit.
l Malfunction of ignition switch
l Malfunction of TCM
Overdrive switch check to
NG Replace
Measure at overdrive switch connector
lVoltage between terminals (3) and
OK: Battery positive voltage
OK.NG
OK
Repair
Check trouble svmotom.
Check the l
OK
NG Repair
ignition switch and overdrive switch
NG
NG
Repairoverdrive switch and TCM connectors.OK
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the TCM.
. .
INSPECTION PROCEDURE 17
l Closed throttle position switch system
Probable cause
[Comment]In cases such as the above, the cause is probably a defective closed throttle position switchl
Malfunction of closed lcircuit.Malfunction of connector
l Malfunction of
Closed throttle position switch check Replace the position sensor.
(Refer to GROUP On-vehicle
Inspection of Components.)
OK
Check the following connectors:NG Repair
.
OK
Check trouble
NG
Check the harness wire between theN G Repairclosed throttle position switch and TCM
connectors.
OK
Replace the TCM.

AUTOMATIC TRANSAXLE .
ENGINE (TURBO) AND
INSPECTION PROCEDURE
l Vehicle speed sensor systemProbable ‘cause
[Comment]l Malfunction of vehicle speed In cases such as the above, the cause, is probably a defective vehicle speed sensor circuit.
Malfunction of connectorl.
l
of TCM
(Refer to
N G Replace
. .. .
Measure at the vehicle speed 1. NGNG Check the following con-, RepairlDisconnect the connector, and measure at the harnes s side.1. Voltage between 1 and ground
(Ignition switch: ON)
OK: Battery positive voltage
2. Voltage between 3 and ground (Ignition switch: ON)
O K :
2. NG
3. Continuity between 2 and ground O K :
NGCheck the following con-+ Repair
OK
Check trouble symptom.
OK
Replace the TCM.
OK
Check trouble symptom..I
NG
Check the ignition switch.
(Refer to GROUP 54 switch)
NGCheck the following con- +.
OK
Check trouble symptom.
NG
NG
Check the harness wirebetween the TCM and thev e h i c l e s e n s o r connector.’
the TCM.
Repair
I
Check the harness wire between the vehicle speed se nsor and
the ground and repair if necessary.
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AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
SERVICE DATA REFERENCE TABLE
Item
No.Check item Check conditions condition
Fully closed
,000
Ignition: ON Gradually rises
11Throttle positionEngine: Stopped Depressed from the above
sensor Selector lever position:
value range
Fully open (for at least 2 se-,
Drive for 15 minutes or more
so that the automatic
15Oil temperature Warming up mission fluid temperature be-Gradually to
sensor
comes
70
Selector lever position:
range (vehicle stopped)
Idling (vehicle stopped)O N
OFF .
21
23
25
servo
switch
Ignition signal
Closed throttle
position switch Selector lever position:
2 range
Selector lever position:
range
Overdrive: OFF
Selector lever position:
range
Overdrive: ON
Selector lever position:
range
Selector lever position:
range
Overdrive: OFF
Ignition: ON
Engine: Stopped
Selector lever position:
range Driving at 10
mph)ON
Driving at constant speed of
40 km/h (20 seconds
OFF
o r m o r e )
Driving at constant speed of
50 km/h (31 mph) (20 seconds ON
or more)
Driving at constant speed of
50 km/h (31 mph) (20 seconds OFF
or more)
Idling (vehicle stopped) rpm
Driving at constant speed of
50 km/h (31 mph) (20 seconds rpm
or more).
O NFully closed
Depressed OFF
Fully open (for at least 2 se-,,
26A/C load signal Engine: Idling
Selector lever position:
range A/C switch: ON
A/C switch: OFF
ON
OFF
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