sensor MITSUBISHI SPYDER 1990 Service Repair Manual

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.
TSB Revision

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
TSB Revision
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.
TSB Revision

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
Revision

AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
Item
No. Check itemCheck conditions
Normal
Idling (vehicle stopped)
Driving at 10 mph)Selector lever position:
2 range
Vehicle speedDriving at constant speed of
38 40 km/h (25 mph) (20 seconds40 km/hsensoro r m o r e )
Selector lever position:Driving at constant speed of range50 (31 mph) (20 seconds50Overdrive: OFF
or more)
Accelerator pedal position
Pressure control Engine: Idling (vehicle
45solenoid valvestopped)
Selector lever position: Depress slightly
range[Driving at 5 (3.1. mph)]
47
49
Torque converter
clutch solenoid
Amount of torque
converter clutch
slippage
Torque converter
clutch solenoid
duty Selector lever position:
range
Overdrive: OFF
Selector lever position:
range
Overdrive: OFF
Driving at constant speed of
50 km/h (31 mph) (20 seconds rpmor more)
Driving at constant speed of
70 km/h (43 mph)
Driving at constant speed of
50 km/h (31 mph) (20 seconds0or more)
Driving at constant speed of
70 km/h (43 mph)0
ACTUATOR TEST REFERENCE TABLE
Item No.Check item Drive contents
01Pressure controlCurrent flows to the
solenoid valve lenoid valve for 5
at 50% duty
Check conditions
Engine:
Idling (Vehicle stopped)
Selector lever:
range
Throttle opening angle: Fully closed
Normal condition
The brake
pressure is
sured and the pressure
during actuator driving is
lowered.
TSB Revision

AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> Troubleshooting
No.Check item
Check conditionsNormalRemarks
16Communication withEngine: idle
ECMSelector lever: range
20Closed throttle
position switch Engine: Idling
Engine: Off idle
21
23
24
25
26
31
32
33
34
35
36
37
38
Throttle position
sensor Accelerator pedal: Fully closed
Accelerator pedal: Fully open
Oil temperature
sensor Fluid temperature:
Fluid temperature:
3.9
1.4
Sensor ground Engine: IdlingI--
Power supplyBattery positive
voltage
Ground Engine: IdlingIo v
Park/ Neutral position
Selector lever position: rangeBattery positive
switch (P) voltage
Selector lever position: Out of range 0
Park/ Neutral position
Selector lever position: rangeBattery positive
switch (R) voltage
Selector lever position: Out of
range0
Park/ Neutral position Selector lever position: rangeBattery positive
switch (N) voltageSelector lever position: Out of range 0
Park/ Neutral position
Selector lever position: rangeBattery positive
switch (D) voltage
Selector lever position: Out of
range0
Park/ Neutral position Selector lever position: 2 rangeB a t t e r y
switchvoltage
Selector lever position: Out of 2 range 0
Park/ Neutral position
Selector lever position: range positive
switch (L)voltage
Selector lever position: Out of
range0
switch Overdrive switch: ON
Overdrive switch: OFF
Battery positive
voltage
o v
Brake pedal is depressedo v--- I
light switch Brake pedal is releasedBattery positive voltage
TSB Revision

AUTOMATIC TRANSAXLE
ENGINE AND ENGINE> Troubleshooting
No. Check item
Check conditionsNormal condition
39
40Backup power supply Ignition switch: OFFBattery positive
voltage
Vehicle speed sensor Vehicle: Slowly moving forwardFlashing
Measure between terminals (41) and
41Pulse generator
(PG-B)
(42)Engine: 3,000
Selector lever position: range
Transaxle condition:
gear
Measure between terminals (41) and
42Pulse generator (42)
(PG-B)Engine: 3,000
Selector lever position: range
Transaxle condition:
gear
43Pulse generator A
(PG-A) Measure between terminals (43) and(44)Engine: 3,000
Selector lever position: range
Transaxle condition:
gear,
Measure between terminals (43) and
Pulse generator A
44Engine: 3,000 (PG-A) Selector lever position: range
Transaxle condition:
gear
45 GroundEngine: Idlingo v
46Ignition pulse Engine: 3000
TSB Revision

AUTOMATIC TRANSAXLE
ENGINE. (TURBO) AND ENGINE> Troubleshooting
Checkitem
PulseCheck conditions
Selector lever position: range
Overdrive: OFF
Normal
Driving at constant speed of 50
mph) (20 seconds or
more)
W a v e f o r m A
PulseSelector lever position: range
Overdrive: OFF
Vehicle
speed Selector lever position: range
sensor Overdrive: OFF
at constant speed of 50
mph) (20 seconds or Waveform
more)
Driving at constant speed of 50
mph) (20 seconds or Waveform
m o r e )
Pressure
controlAccelerator pedal position .
solenoid
Engine: Idling (vehicle stopped)
Fully closed Waveform
valveSelector lever position: range
,
WAVEFORM SAMPLE
Waveform AWaveform
.
5
0
TSB Revision
,
WaveformWaveform
2
1
0
-1
- 2
0
-10
-20

AUTOMATIC: TRANSAXLE
ENGINE AND On-vehicle Service
switch
Name
Data link connector
servo switch
OD-OFF switch
Oil temperature sensor
Oil temperature sensor
Park/neutral position switch
Revision
I

AUTOMATIC TRANSAXLE ‘I
ENGINE (TURBO) AND On-vehicle Service I-
Pulsegene-rator
Pulsegene-rator A
Throttle position sensor(with closed throttle position switch) Vehicle
sensor
CC Solenoid
Revision