Mitsubishi Galant (2004+). Manual - part 1702

AUTOMATIC TRANSAXLE

23-7

TRANSMISSION FLUID COOLER

M2233000100097

<F4A4B> ATF WARMER (TRANSMISSION FLUID COOLER)

For the F4A4B transaxle on vehicles with 2.4L
engine, an ATF warmer is used instead of the con-
ventional transmission fluid cooler, which is inte-
grated in the lower radiator tank.

Shift positions indicator
light <Vehicles with sport
mode>

1st

−

2nd

−

3rd

−

4th

−

INVECS-II cancel command

−

ITEM

DIAGNOSTIC
TROUBLE
CODE

SERVICE DATA

ACTUATOR
TEST

ITEM NO. DISPLAY

AC305477

AC305476

HEATER

ENGINE

AUTOMATIC
TRANSAXLE

THERMO
VALVE

RADIATOR

WATER
PUMP

ATF WARMER
(TRANSMISSION
FLUID COOLER)

: TRANSMISSION FLUID

: ENGINE COOLANT

ATF
WARMER

AUTOMATIC TRANSAXLE

23-8

CONPONENT DIAGRAM

The ATF warmer (transmission fluid cooler) makes
the best use of the characteristics that engine cool-
ant gets warm more quickly than transmission fluid
after the engine starts. The warmer warms the trans-
mission fluid up to an optimum temperature (70

−

C) quickly for automatic transaxle performance.

Once the transmission fluid has reached the opti-
mum temperature, the warmer starts cooling down
the fluid to stabilize the temperature.

<F4A5A> TRANSMISSION FLUID COOLER

For the F4A5A transaxle on vehicles with 3.8L
engine, the conventional transmission fluid cooler is
used. This system is the same as the previous GAL-
ANT.

AC305478

TRANSMISSION FLUID
(FEED)

ENGINE COOLANT (FEED)

ENGINE COOLANT (RETURN)

TRANSMISSION FLUID
(RETURN)

TRANSAXLE CONTROL

AUTOMATIC TRANSAXLE

23-9

TRANSAXLE CONTROL

GENERAL DESCRIPTION

M2232000100210

COMPONENT DIAGRAM

•

The transaxle is controlled by a cable.

•

<Vehicles without sport mode>: The selector
lever assembly has seven gear ranges: "P," "R,"
"N," "D," "3," "2," and "L."

•

<Vehicles with sport mode>: On vehicles with
sport mode, the selector lever assembly has two
gates: main gate and manual gate. Main gate has
four shift positions (P, R, N, D), which allows the
same control as a conventional A/T. The manual
gate allows the driver to select gears just like a
manual transaxle.

•

In order to prevent a sudden start caused by mis-
guided lever operation, the system uses A/T mis-
guided operation prevention mechanisms
(consisting of shift lock mechanism and key inter-
lock mechanism).

A/T ERRONEOUS OPERATION PREVENTION MECHANISMS

M2232003100123

As a preventative mechanism against A/T malfunc-
tion, the same shift lock cable unit as for
ENDEAVOR is used, and part of the ignition key cyl-
inder has been modified.

AC305381

AC306095

AC305379

AC305380

SELECTOR
LEVER
ASSEMBLY

KEY INTERLOCK CABLE

SHIFT LOCK CABLE

TRANSAXLE
CONTROL CABLE

<VEHICLES WITHOUT SPORT MODE>

<VEHICLES WITH SPORT MODE>

DOWN

TRANSAXLE CONTROL

AUTOMATIC TRANSAXLE

23-10

IGNITION KEY CYLINDER

•

The operation of the ignition key cylinder prevent-
ing A/T malfunction involves the protrusion of the
rotor inside the ignition key cylinder, the lock cam,
the slider, and the key interlock cable.

•

The slider is linked to the key interlock cable, and
it slides depending on the push button of the
selector lever when the selector lever is in the P
position.

•

When the selector lever is out of the P position,
the lock cam is restrained by the slider, causing
the rotor protrusion to obstruct the lock cam and
limit the rotation of the ignition key to the ACC
position, which prevents removal of the key.

•

When the selector lever is in the P position, the
slider slides and the lock cam is unrestricted. This
frees the rotor, allowing the ignition key to be
turned to the LOCK position. When the ignition
key is in the LOCK position, the lock cam is
restrained by the rotor protrusion, which restrains
the slider and prevents the selector lever from
moving out of the P position.

AC209043 AB

OTHER THAN P POSITION

P POSITION

IGNITION KEY CYLINDER

ROTOR

KEY INTERLOCK CABLE

SLIDER

LOCK CAM

ROTOR

KEY INTERLOCK CABLE

SLIDER

LOCK CAM

PROTRUSION

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