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 in 1st gear
(3) Driving at
constant speed of 30
km/h in 2nd gear
(4) Driving at
constant speed of 50
km/h in 3rd gear
(5) Driving at
constant speed of 70
km/h in 4th gear
(6) Driving at
constant speed of 70
km/h in 5th gear

Data list No.11
(2) 1st, (3) 2nd, (4)
3rd, (5) 4th, (6) 5th

Shift
position

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

INSPECTION
PROCEDURE
PAGE

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-21

Data list No.12
(2) 100%, (3) 100%,
(4) 100%, (6) 100%

Low-revers
e solenoid
valve duty
%

Low-reverse
solenoid valve
system
(

P.23A-133

Data list No.13
(2) 0%, (3) 0%, (4)
0%, (6) 100%

Underdrive
solenoid
valve duty
%

Underdrive
solenoid valve
system
(

P.23A-144

Data list No.14
(2)100%, (3) 0%, (4)
0%, (6) 0%

Second
solenoid
valve duty
%

Second
solenoid valve
system
(

P.23A-154

Data list No.15
(2) 100%, (3) 100%,
(4) 0%, (6) 0%

Overdrive
solenoid
valve duty
%

Overdrive
solenoid valve
system
(

P.23A-164

Data list No.16
(2) 0%, (3) 0%, (4)
100%, (6) 100%

Reduction
solenoid
valve duty
%

Reduction
solenoid valve
system
(

P.23A-174

Data list No.9
(1) 0km/h
(4) 50km/h

Vehicle
speed
sensor

vehicle speed
sensor system

Data list No.5
(4) 1,600

− 1,900

r/min

Input shaft
speed
sensor

Input shaft
speed sensor
system
(

P.23A-55

Data list No.6
(4) 1,600

− 1,900

r/min

Output
shaft speed
sensor

Output shaft
speed sensor
system
(

P.23A-72

Data list No.17
(3) 0%
(5) 70

− 90%

Damper
control
clutch
solenoid
valve duty
%

Damper control
clutch solenoid
system
(

P.23A-185

P.23A-201

P.23A-204

Data list No.10
(3) 100-300 rpm
(5) 0-10 rpm

Damper
clutch
slippage

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

INSPECTION
PROCEDURE
PAGE

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-22

Transmission
range: 3 (on a
flat and straight
road)

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

Data list No.17
(2) 70

− 99.6%

(3) 70

− 99.6% to 0%

Damper
control
clutch
solenoid
valve duty
%

Damper control
clutch solenoid
system
(

P.23A-185

P.23A-201

P.23A-204

Data list No.10
(2) 100 to 300 r/min
(3) The value
changes from (2)

Damper
control
clutch
amount of
slippage

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

(1)Accelerate to 5th
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 5th
gear at a throttle
position sensor
output of 2.5 V
(accelerator opening
angle of 50%)

Data list No.11, 6
The shifting points
correspond with the
diagnostic 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-236

Does not
shift
according
to
instructions

Early or late
shifting in all
gears
(

P.23A-239

Early or late
shifting in some
gears
(

P.23A-242

STEP

CONDITION
BEFORE
TEST/OPERATION

TEST/OPERATION

STANDARD

INSPECTION
ITEM

INSPECTION
PROCEDURE
PAGE

AUTOMATIC TRANSMISSION DIAGNOSIS

AUTOMATIC TRANSMISSION

23A-23

Does not
shift

No diagnostic
trouble code
(

P.23A-244

Input shaft
speed sensor
system
(

P.23A-55

Output shaft
speed sensor
system
(

P.23A-72

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

(1) Accelerate from
1st gear to 5th gear.
(2) While driving at
60 km/h in 5th gear,
downshift to 4th gear
(3) While driving at
40 km/h in 4th gear,
downshift to 3rd gear
(4) While driving at
30 km/h in 3rd gear,
downshift to 2nd gear
(5) While driving at
20 km/h in 2nd gear,
downshift to 1st gear

Data list No.11
(1) 1st

→ 2nd → 3rd

→ 4th → 5th
(2) 5th

→ 4th

(3) 4th

→ 3rd

(4) 3rd

→ 2nd

(5) 2nd

→ 1st

Does not
shift from 1
to 2 or 2 to
1

Low-reverse
solenoid valve
system
(