Lexus GS300/400 (2000 year). Manual — part 34
AT05Z–01
D00754
D01741
Spring
Check Ball Body
AT–8
–
AUTOMATIC TRANSMISSION
VALVE BODY ASSEMBLY
1956
VALVE BODY ASSEMBLY
ON–VEHICLE REPAIR
CAUTION:
When working with FIPG material, you must observe the follow-
ing items.
Using a razor blade and gasket scraper, remove all the old
FIPG material from the gasket surfaces.
Thoroughly clean all components to remove all the loose
material.
Clean both sealing surfaces with a non–residue solvent.
Apply FIPG in an approx. 1 mm (0.04 in.) wide bead along
the sealing surface.
Parts must be assembled within 10 minutes of application.
Otherwise, the FIPG material must be removed and reap-
plied.
1.
REMOVE DRAIN PLUG WITH GASKET AND DRAIN
ATF
2.
REMOVE OIL PAN (See page
3.
EXAMINE PARTICLES IN PAN (See page
4.
REMOVE OIL STRAINER (See page
)
5.
REMOVE SOLENOID WIRING WITH ATF TEMPERA-
TURE SENSOR (See page
)
6.
REMOVE VALVE BODY
Remove the 21 bolts and valve body.
7.
REMOVE CHECK BALL BODY AND SPRING
NOTICE:
Do not drop the check ball body and spring.
D00911
Shift Solenoid
Valve SLN
Shift Solenoid
Valve SLT
Shift Solenoid
Valve S1
Shift Solenoid
Valve S3
Shift Solenoid
Valve SLU
Shift Solenoid Valve S2
Shift Solenoid Valve S4
D01741
Spring
Check Ball Body
D00913
Pin
–
AUTOMATIC TRANSMISSION
VALVE BODY ASSEMBLY
AT–9
1957
8.
REMOVE SOLENOID VALVE
(a)
Remove the 3 bolts and shift solenoid valve No.1, No.2
and No.3.
(b)
Remove the 2 bolts, oil guide plate, lock plate, shift sole-
noid valve SLN and No.4.
(c)
Remove the 6 O–rings from each shift solenoid valve.
(d)
Remove the bolt, lock plate and shift solenoid valve SLU
and SLT.
9.
INSTALL SOLENOID VALVE
(a)
Install the shift solenoid valve SLU and SLT and the lock
plate with the bolt.
Torque: 6.4 N·m (65 kgf·cm, 56 in.·lbf)
(b)
Coat 6 new O–rings with ATF.
(c)
Install the 6 O–rings to the each solenoid valve.
(d)
Install the shift solenoid valve SLN, No.4, lock plate and
oil guide plate with the 2 bolts.
Torque: 10 N·m (100 kgf·cm, 7 ft·lbf)
(e)
Install the shift solenoid valve No.1, No.2 and No.3 with
the 3 bolts.
Torque:
Shift solenoid valve No.1 and No.3:
6.4 N·m (65 kgf·cm, 56 in.·lbf)
Shift solenoid valve No.2:
10 N·m (100 kgf·cm, 7 ft·lbf)
10.
INSTALL CHECK BALL BODY AND SPRING
11.
INSTALL VALVE BODY
(a)
Align the groove of the manual valve to pin of the lever.
D00754
A
C
B
B
B
B
C
C
A
D
B
AT–10
–
AUTOMATIC TRANSMISSION
VALVE BODY ASSEMBLY
1958
(b)
Install the 21 bolts.
Torque: 10 N·m (100 kgf·cm, 7 ft·lbf)
Bolt length:
Bolt A: 23 mm (0.91 in.)
Bolt B: 28 mm (1.10 in.)
Bolt C: 36 mm (1.42 in.)
Bolt D: 55 mm (2.17 in.)
12.
INSTALL SOLENOID WIRING WITH ATF TEMPERA-
TURE SENSOR (See page
)
13.
INSTALL OIL STRAINER (See page
14.
INSTALL OIL PAN (See page
)
15.
INSTALL DRAIN PLUG WITH NEW GASKET
Torque: 20 N·m (205 kgf·cm, 15 ft·lbf)
16.
FILL FLUID AND CHECK FLUID (See page
BE01I–09
–
BODY ELECTRICAL
BODY ELECTRICAL SYSTEM
BE–1
2302
BODY ELECTRICAL SYSTEM
PRECAUTION
HINT:
Take care to observe the following precautions when performing inspections or removal and replacement
of body electrical related parts.
1.
HEADLIGHT SYSTEM
Halogen bulbs have pressurized gas inside and require special handling. They can burst if scratched
or dropped. Hold a bulb only by its plastic or metal case. Don’t touch the glass part of a bulb with bare
hands.
When high voltage socket of discharge headlight is touched with the light control switch HEAD, high
voltage of 20,000 V is momentarily generated. This might lead to a serious accident.
Never connect the tester to the high voltage socket of discharge headlight for measurement, as this
leads to a serious accident because of high voltage.
When performing operation related to the discharge headlight, make sure to do it in the place with no
water of rain to prevent electric shock, with light control switch OFF, battery terminal removed, connec-
tor of light control ECU disconnected.
When performing operation related to the discharge headlight, make sure to do it after assembling has
been completely over and never light up without a bulb installed.
Do not light up the discharge headlight using another power source except vehicle’s.
When there is a defect on the discharge headlight or any shock has been applied to it, replace the light
with a new one.
Even if the light operates normally, there is a possibility that the fail–safe function works.
2.
SRS (SUPPLEMENTAL RESTRAINT SYSTEM)
The LEXUS GS300/ 400 is equipped with an SRS (Supplemental Restraint System) such as the driver airbag
and front passenger airbag. Failure to carry out service operation in the correct sequence could cause the
SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (in-
cluding removal or installation of parts, inspection or replacement), be sure to read the precautionary notices
in the RS section.
3.
COMBINATION METER SYSTEM
The cold cathode tube connectors (Connector ”K”and ”L”) in the combination meter are charged with high
voltage AC current when power is supplied, so do not touch them when they are charged.
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