Content .. 484 485 486 487 ..

Mitsubishi Galant 9G. Manual - part 486

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-22

Accelerator pedal
(1) Fully closed
(2) Depressed
(3) Fully open

Data list No.11
(1) 300

− 700 mV

(2) Gradually rises
from (1)
(3) 4,000 mV or
more

TP sensor

−

Group 13A
<2.4L Engine>,
Diagnostic
Trouble Code
Procedures

−

DTCs P0122,
0123: Throttle
Position Sensor
System
(

P.13A-159

P.13A-169

Group 13B
<3.8L Engine>,
Diagnostic
Trouble Code
Procedures

−

DTCs P0122,
0123: Throttle
Position Sensor
System
(

P.13B-162

P.13B-172

Brake pedal
(1) Depressed
(2) Released

Data list No.26
(1) ON
(2) OFF

Stoplight
switch

Stoplight switch
system
(

P.23A-111

Ignition switch:
ST
Engine: Stopped

Cranking test with
lever in P or N range

Cranking should be
possible

Cranking

Engine does
not crank
(

P.23A-282

Engine warming
up

Drive for 15 minutes
or more so that the
transmission fluid
temperature
becomes 70

− 80°C

(158

− 176°F)

Data list No.15
Gradually rises to 70
− 80°C (158 −

176

°F)

Transmissi
on fluid
temperatur
e sensor

15,
16

Transmission
fluid
temperature
sensor system
(

P.23A-45

P.23A-59

Engine: Idling
Transmission
range: N

Brake pedal (Retest)
(1) Depressed
(2) Released

Data list No.26
(1) ON
(2) OFF

Stoplight
switch

Stoplight switch
system
(

P.23A-111

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

DTC

INSPECTION
PROCEDURE
PAGE

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-23

Accelerator pedal
(1) Fully closed
(2) Depressed

Data list No.21
(1) Engine
tachometer and the
scan tool MB991958
(MUT-III sub
assembly) shows the
same engine speed
(2) Gradually rises
from (1)

Crankshaft
position
sensor

Group 13A
<2.4L Engine>,
Diagnostic
Trouble Code
Procedures

−

DTC P0335:
Crank shaft
Position Sensor
System
(

P.13A-548

Group 13B
<3.8L Engine>,
Diagnostic
Trouble Code
Procedures

−

DTC P0335:
Crank shaft
Position Sensor
System
(

P.13B-604

Transmission range
(1) N

→ D

(2) N

→ R

Should be no
abnormal shift
shocks
Time delay when
engaging should be
within 2 seconds

Malfunction
when
starting

Engine stalls
when moving
selector lever
from N to D or
N to R
(

P.23A-291

Shift shock
when shifting
from N to D and
long delay
(

P.23A-293

Shift shock
when shifting
from N to R and
long delay
(

P.23A-296

Shift shock
when shifting
from N to D, N
to R and long
delay
(

P.23A-299

Does not
move

Does not move
forward
(

P.23A-285

Does not move
backward
(

P.23A-287

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

DTC

INSPECTION
PROCEDURE
PAGE

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-24

Does not move
(forward or
backward)
(

P.23A-290

Transmission
range: N
<Vehicles
without sport
mode>, Sport
mode <Vehicles
with sport
mode> (on a flat
and straight
road)

Gear range and
vehicle speed (Each
condition should be
maintained for 10
seconds or more).
(1) Idling in 1st gear
(Vehicle stopped)
(2) Driving at
constant speed of 10
km/h (6.2 mph) in 1st
gear
(3) Driving at
constant speed of 30
km/h (19 mph) in 2nd
gear
(4) Driving at
constant speed of 50
km/h (31 mph) in 3rd
gear
(5) Driving at
constant speed of 60
km/h (37 mph) in 4th
gear

Data list No.63
(2) 1st, (3) 2nd, (4)
3rd, (5) 4th

Shift
position

Data list No.31
(2) 0%, (3) 100%, (4)
100%, (5) 100%

Low-revers
e solenoid
valve duty
%

Low-reverse
solenoid valve
system
(

P.23A-187

Data list No.32
(2) 0%, (3) 0%, (4)
0%, (5) 100%

Underdrive
solenoid
valve duty
%

Underdrive
solenoid valve
system
(

P.23A-200

Data list No.33
(2)100%, (3) 0%, (4)
100%, (5) 0%

Second
solenoid
valve duty
%

Second
solenoid valve
system
(

P.23A-211

Data list No.34
(2) 100%, (3) 100%,
(4) 0%, (5) 0%

Overdrive
solenoid
valve duty
%

Overdrive
solenoid valve
system
(

P.23A-222

Data list No.22
(4) 1,400

− 1,700

r/min

Input shaft
speed
sensor

Input shaft
speed sensor
system
(

P.23A-69

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

DTC

INSPECTION
PROCEDURE
PAGE

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-25

Data list No.23
(4) 1,400

− 1,700

r/min

Output
shaft speed
sensor

Output shaft
speed sensor
system
(

P.23A-90

Transmission
range: 3
<Vehicles
without sport
mode>, sport
mode <Vehicles
without sport
mode> (on a flat
and straight
road)

Transmission range
and vehicle speed
(1) Driving at speed
of 60 km/h (37 mph)
in 3rd gear
(2) Driving at
constant speed of 60
km/h (37 mph)
(3) Release
accelerator pedal
(Speed under 50
km/h (31 mph)

Data list No.36
(2) 70

− 99.6%

(3) 70

− 99.6% to 0%

Torque
converter
clutch
solenoid
valve duty
%

36,
52,
53

Torque
converter clutch
solenoid
system
(

P.23A-233

P.23A-258

P.23A-263

Data list No.52
(2)

−10 to 10 r/min

(3) The value
changes from (2)

Torque
converter
clutch
amount of
slippage

Use the scan
tool MB991958
(MUT-III sub
assembly) to
stop the
INVECS-II
function
Transmission
range: D (on a
flat and straight
road)

(1)Accelerate to 4th
gear at a throttle
position sensor
output of 1.5 V
(accelerator opening
angle of 25%)
(2)Slowly decelerate
to a stop
(3)Accelerate to 4th
gear at a throttle
position sensor
output of 2.5 V
(accelerator opening
angle of 50%)

Data list No.11, 23
The shifting points
correspond with the
scan tool display and
the TP sensor
voltage (opening
angle) and output
shaft speed, which
are shown in the
standard shift
pattern

Malfunction
when
shifting

Shift shock and
slipping
(

P.23A-300

Does not
shift
according
to
instructions

Early or late
shifting in all
gears
(

P.23A-303

Early or late
shifting in some
gears
(

P.23A-305

Does not
shift

No diagnostic
trouble code
(

P.23A-307

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

DTC

INSPECTION
PROCEDURE
PAGE

Content .. 484 485 486 487 ..