automatic transmission MITSUBISHI SPYDER 1990 Service Repair Manual

Lubrication and
GENERAL Lubricants and Lubricant Capacities Table
Use of fuels containing alcohol is not recommended
unless the nature of the blend can be determined
as being satisfactory.
Gasohol
A mixture of 10% ethanol (grain alcohol)
and 90% unleaded gasoline may be used in your
car.
If problems are experienced as a result
of using gasohol, it is recommended that the car
be operated on gasoline.
Methanol Do not use gasolines containing
methanol (wood alcohol). Use of this type of alcohol
can result in vehicle performance deterioration and
damage critical parts in the fuel system compo-
nents. Fuel system damage and performance prob-
lems, resulting from the use of gasolines containin g
methanol, may not be covered by the new car war-
ranty.
Gasolines containing
Ether)
Unleaded gasoline containing 15% or
may be used in car. Fuel containing MTBE
over 15% vol. may cause reduced engine perfor-
mance and produce vapor lock or hard starting.
MATERIALS
TO FUEL
Indiscriminate use of fuel system -cleaning’
should be avoided. Many of these materials in-
tended for gum and varnish removal
highly active solvents or similar ingredients that
can be harmful to gasket and diaphragm materials
used in fuel system component
RECOMMENDED LUBRICANTS
Items
Engine
Recommended lubricants
Engine oil displaying EOLCS certification mark or c onforming
to the API classification SH or (For
details, refer to section)
Manual transaxle Engine (Non-turbo) TEXACO MTX FLUID FM I
Engine (Turbo) and API classification SAE or
Engine,
Automatic transaxle DIAMOND ATF SP or equivalent
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Transfer API classification SAE or
Differential (rear axle)API classification or higher
Above SAE
From to
SAE
Below SAE
Power steering
Brake and clutch Automatic transmission fluid
Conforming to or
Engine coolant LONG-LIFE COOLANT (Part or
High quality ethylene-glycol antifreeze I

AUTOMATIC TRANSAXLE ENGINE
(TURBO) AND
ENGINE> Troubleshooting
scan
Inspection proce-
dure page if there an abnormality
is
Conditions Operation
Inspection
1Ignition
switch: ON
Engine:
Stopped
gnition
ST
up
Idling
lever
osition:
Judgement value
Overdrive switch
system
Code Nos.
Park/ Neutral
position switch
system
Code No. 28
Stop light switch
system
Starting impossible
Code Nos. 16
system
12,
TPS system
throttle switch
ingine stalling
uring shifting
when
hanging from
to
and long lag time
Overdrive switch
(2) OFF
Data list No. 35
(2) OD OFF
Data list No. 37
(3)
(4)
Data list No. 28
ON
OFF
should be
possible Overdrive
switch
Selector
position
(4)
2
Park/ Neutral
s w i t c h
Brake pedal (1) Depressed
Released
light
pos-
or
I
ure sensor
test with
ever in
or
range
Drive for 15
minutes or more so
that the automatic
transmission fluid
temperature becomes 70 Data list No. 15
Gradually rises to 70
Accelerator pedal
(1) Fully closed
(2) Depressed
(3) Fully open (for
at least 2 seconds) Data list 11
( 1 )
(2) Gradually rises from
( 3 )
Data list No. 25
OFF
OFF
Closed
throttle posi-
tion switch
Should be no abnormal
shifting shocks
Time lag should be
within 2 seconds Malfunction
when starting
operation
(1)
shift
(2)
shift
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AUTOMATIC TRANSAXLE ENGINE’
(TURBO) AND
ENGINE> T r o u b l e s h o o t i n g
Code No. 59 Anomalous vibration occurrence
[Comment]l Noise generatedIf pulse generator A output indicates the revolutio n alteration by more than 50
l Automatic transmission fluid deteriorated in a specified cycle, diagnosis code 59 is output.
l occurred
Yes there noise in the pulse generator Eliminate the source Of A output waveform?
No
Replace automatic’transmission fluid.
Check trouble symptom.
NG
Inspection procedure 15; vibration.
(Refer to
Code Torque reduction request and execution sig-
nal lines
causeCode Torque reduction request signal lines
Code
Torque reduction execution signal lines
[Comment]l Malfunction of ECMIf a “torque reduction executing” signal is detecte d for 0.2 second or more while al Malfunction of TCM
“no torque reduction request” signal is being outpu t, there is a short-circuit in the
l Malfunction of connector
torque reduction request signal line or an open cir cuit in the torque reduction executionsignal line, and code No. 61 is output.
If a “torque reduction executing” signal is not det ected four times even though 0.2
second has passed since a “torque reduction request ” signal was output, there is
an open circuit in the torque reduction request sig nal line and code No. 62 is output.
If a “torque reduction signal is not detected under the following conditi ons,there is a short-circuit in the torque reduction execution signal line and code NO.
63 is output.
The transaxle output shaft speed has been 1,000
or higher after the ignition
switch in turned on.
Engine speed has been 1,000 or higher for 20 minutes or more after the ignitio nswitch is turned on.
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Measure at ECM
lDisconnect the connector and
l
Voltage between (7) and ground
l switch.
NG
Check the l
OK
Check trouble
Repair
TCM and
u n
Replace the TCM.

AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND On-vehicle Service
Stall test consists of determining maximum engine speed
obtained at full throttle in positions. This test
checks torque converter overrunning clutch operation,
and holding ability of transmission clutches and
brake.
Caution
During this test, make sure no stands in front
of, or behind, vehicle.
1.Check the transmission fluid level, fluid temperatu re and
coolant temperature.
lFluid level: At “HOT” position on dipstick
l Fluid temperature:
lEngine coolant temperature:
2. Apply chocks to both rear wheels.
3.
engine tachometer.
4. Apply parking and service brakes fully.
5 . S t a r t e n g i n e .
6. With selector lever in position, depress accelerator
pedal fully to read engine
rpm. Do not hold
throttle wide open any longer than is necessary to obtain
maximum engine rpm reading, and never longer
5 seconds at a time. If more than one stall test is required,
operate at approximately 1,000 in neutral
for 2 minutes to cool transmission fluid between te sts.
Standard value:
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2,100 2,600
3 , 3 0 0 3 , 6 0 0
7.Place selector lever to position and perform test
by the same procedures above.
Stall Speed Above Specification in
If stall speed is higher than Specification, rear c lutch or overrun-
ning clutch is slipping. In this case, perform hydrau-
lic test to locate cause of slippage.
Stall Above Specification in “R”
If stall speed is higher than front clutch of trans-
axle or low-reverse brake is In this perform
hydraulic test to locate cause of slippage.
Stall Speed Above Specification and “R”
If stall speed is lower than insufficient engine
output or faulty torque converter is Check for en-
gine misfiring, ignition timing, valve clearance etc. If these
are good, torque converter is faulty..

AUTOMATIC TRANSAXLE
ENGINE (TURBO) AND ENGINE> On-vehicle Service
23100170047
1. Drain out the automatic transmission fluid.
2. Remove the oil pan.
3. Remove the oil filter.
4. Remove the oil temperature sensor.
5.Press the solenoid valve harness grommet and connec tor
into the transaxle case.
6.Press the catches of the solenoid valve harness grommets
and pass the connector through the case hole.
7.Remove the valve body assembly. The manual
come out, so be careful not to drop it.
valve can

AUTOMATIC TRANSAXLE
ENGINE AND Transaxle
Pry barTransaxle
S H A F T R E M O V A L
(1) a pry bar between the transaxle case drive
shaft, and then pry the drive shaft from the transaxle.
Caution
1.Use a pry bar to remove the shaft from the
B.J. assembly, or the may be dam-
aged. .
2.Do not insert the pry bar oil
may be damaged.
I
Use the special tool as a cover not fo let foreign
get into the transaxle case.
DRIVE SHAFT WITH INNER SHAFT
DISCONNECTION
(1) Lightly tap the center bracket with ham-
mer or similar tool to remove
shaft from the
transaxle.
(2) Suspend the removed. drive shaft with inner sha ft
wire so that‘there are no sharp bends in any of the
(3) Use the special a cover not to let foreign objects
g e t i n t o t h e t r a n s a x l e
Transmission jack
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CONNECTING’ BOLTS/TRANSAXLE
ASSEMBLY MOUNTING BOLTS/TRANSAXLE
ASSEMBLY REMOVAL
(1)Use a transmission jack to support the transaxle as sembly.
Caution
Support the transaxle case side, not pan.
.

AUTOMATIC TRANSAXLE ENGINE (NON-TURBO)> Troubleshooting
ROAD TEST
Use scan
ConditionsOperationJudgment value Inspection item Diagnostic
trouble code
1Ignition switch: ON Check the limp-in Data list Transaxle control
Engine: Stoppedmodel No limp-in modemodule
Transaxle control 14
relay15
20
Check the battery Data list Battery12
positive voltage
2Warming up Drive for 15 Data list No. 56 O i l t e m p e r a t u r e 7 4
minutes or more so
that the automatic Gradually rises to
sensor
transmission fluid
temperature
becomes
3Engine:Engine Data list Transaxle control 45
Selector lever(1) (for at least(1) 2.0 module
position:30 seconds) Check diagnos- CCD Bus19
tic trouble code
Solenoid Circuit
Selector lever
position
(3) (4)
(5) 2 (6)
Data list T r a n s a x l e r a n g e 2 8
and neutral position
(3) (4) switches
(5) 2 (6)
3Engine: Idle Accelerator pedal Data list Crankshaft position 18
Selector lever(1) Depressed (for (1) Engine speeds
position:at least 3 displayed on the
scan tool and
tachometer are
identical
Accelerator pedal
Data list T h r o t t l e p o s i t i o n 2 9
(1) Fully closed
400 or moresensor
(2) Fully open (for at least 2 seconds)
(2) 3,800 or less
Revision

AUTOMATIC TRANSAXLE ENGINE (NON -TURBO )> Troubleshooting
Code Diagnostic item
61Inadequate element volume: 2-4
62Inadequate element volume: OD
73Worn out/burnt transmission fluid
74Calculated oil temperature in use
Limp-in
No
No
No
No
R e f e r e n c e
Code Scan toolInternal control module Probable cause
No.11, 13,
General scan tool
TCM malfunction may be present. l
Malfunction of TCM
l Replace TCM
Code Scan tool 12
No.
Battery power was disconnected Probable cause
General scan tool since last power down
Battery disconnected or first installation.
l
Battery disconnected
A battery-backed RAM is used to maintain some learn ed values. When the battery isl(After securely connecting the battery, use the
disconnected, this memory is lost. When the battery is connected, this memory loss scan tool to erase the DTC.)
by the controller. The code is set and the learned values are initialized to known constants.
This results in the
of some parameters.
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34AUTOMATIC TRANSAXLE ENGINE (NON-TURBO)> Troubleshooting
Pressure switch circuit: OD
A mismatch has occurred between the shift condition and the pressure switch condition
(ON/OFF) while the vehicle is moving.
SCAN TOOL Data list
NG
22 Overdrive pressure switch l Engine: Stopped
l D i s c o n n e c t t h e E A T X r e l a y
connector and apply systemvoltage to harness-side connector
. O N
OK
Check the transmission fluid level.
OK
Replace solenoid and pressure switch
Check trouble symptom.
NG
Possible cause: Internal transaxle failure (Refer to
Adjust the
fluid level.
P r o b a b l e c a u s e
.
fluid level in transaxle
l Malfunction of pressure switch assembly
lHarness or connector between OD pressure
switch and TCM open or short-circuited
l
of TCM
l Internal transaxle problem
Check the harness wire between the
EATX relay and solenoid and pressureswitch assembly
(Check short to power)
NG Repair
Check the harness wire between sole-noid and pressure switch assembly and
Replace solenoid and pressure switch
assembly
Check trouble symptom.
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Replace the TCM

36AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)> Troubleshooting
Code Scan tool 24Pressure switch cricuit: LRProbable cause
No.General scan tool
A mismatch has occurred between the shift condition
and the pressure switch conditionl
Low/high fluid level transaxle
(ON/OFF) while the vehicle is moving. l
Malfunction of switch l Harness or connector between pressure
switch and TCM open or short-circuited
l Malfunction of TCM
l Internal transaxle problem
SCAN TOOL
list
20 pressure switch
l Engine: Stopped
l D i s c o n n e c t t h e E A T X r e l a y
connector and apply systemvoltage to harness-side connector
terminal (8).
l Ignition switch: ON
OK: OFF
NG Check the harness wire between theEATX relay and solenoid and pressureswitch assembly
(Check short to power)
Hydraulic Possible causes:
l Raise vehicle on hoist lIncorrect transmission fluid levelallowsfrontwheelstoturn.l
Internal transaxle failure (Refer
l Attach oauae to to
l the Replace and pressure
l
Increase speed to1 5 0 01. Take a reading of theclutch pressure.O K : psi)
2. SCAN TOOL list
20 L-R pressure switch
OK: ON Replace the TCM
OK
INTERMITTENT MALFUNCTIONl
Study the DTC information (back-
ground, range of check, setting
condition).l Refer to INTRODUCTION How
to Cope with Intermittent Malfunc-
tion. OK
Check the harness N G Repait and pressure switch assembly andTCM (terminal (10))
(Check short to power)
OK
Check the following connector: .N G Repair
OK
Check trouble
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Replace solenoid and pressure switch
Check trouble symptom.
NG
Replace the TCM
Code Scan tool 25
Pressure switch circuit: Probable cause
No.General scan tool
A mismatch has occurred between the shift condition and the pressure switch conditionl
Low/high fluid level in transaxle
(ON/OFF) while the vehicle is moving. l
Malfunction of pressure switch assembly
l Harness or connector between OD pressure
switch and TCM open or
l Harness or connector between pressure
switch and TCM open or short-circuited
l Malfunction of TCM
Internal transaxle problem
l Carrv out the procedure for code No. 21. (Refer
to
l Carry out the inspection procedure for code No. 24. (Refer
to