service ISUZU TF SERIES 2004 Workshop Manual

ON-VEHICLE SERVICE (AW30 –40LE) 7A3-21

Transmission Fluid Level and Condition
Inspection
Park vehicle on level ground and set parking brake.
With the engine idling, move the shift lever through all
positions from “P" to “L", then return to position “P".
Check to see if the level of fluid comes to “HOT" range
of about 80 
 

C (176 
 

F) on the dipstick gauge.
If the level of fluid is too low, replenish to bring it to
maximum level in “HOT" range.
Inspection of fluid condition. If the ATF is black o
r
smells burnt, replace it.



RUW37ASH002501

7A3-22 ON-VEHICLE SERVICE (AW30 –40LE)

ATF Replacement
Inspection
NOTE: Do not overfill.
1. Remove the drain plug from oil pan and drain the
fluid.




RUW17ASH013401
2. Reinstall the drain plug securely.
Torque: 19 N 


m (14 Ib ft)
3. With the engine OFF, add new fluid through the fille
r
tube.



Drain and refill 5.2 liter
Dry fill 8.7 liter
Fluid BESCO ATF III
4. Start the engine and shift the selector into all
position from “P" through “L", and then shift into “P".
5. With the engine idling, check the fluid level. Add fluid up to the “COLD" level on the dipstick.
6. The ATF level must be checked again for correct level with the “HOT" level.
NOTE: To prevent fluid leaks, the drain plug gasket
must be replaced each time this plug is removed.

ON-VEHICLE SERVICE (AW30 –40LE) 7A3-23

Neutral Start Switch (Mode Switch)
Inspection
With a circuit tester, make a continuity test on the
neutral start switch with the moving piece set in each
position.










RTW37BSH000101
Removal
Preparation:
Disconnect negative ( –) battery cable.
1. Remove the rear side ATF cooler pipe from the
transmission elbow.
2. Disconnect neutral start switch connector.
3. Unstake the lock washer, and then remove the shaft
nut.
4. Remove the neutral start switch.
Installation
To install, follow the removal steps in the reverse order,
noting the following points;
If a engine starts at any selector position except “N ” o
r
“ P ”, the neutral start switch (mode switch) should be
adjusted.
1. Loosen the neutral start switch bolt and set the shift
selector to the “N" range.
2. Align the groove and neutral basic line.
3. Hold in position and tighten the bolt and nut.
Torque:
Nut – 7 N 


m (61 Ib in)
Bolt – 13 N 


m (113 Ib in)
4. Lock the nut with the lock washer tubs at two points.



RUW17ASH013601

7A3-24 ON-VEHICLE SERVICE (AW30 –40LE)

Brake Signal
Inspection
Check that the brake light comes on when the brake
pedal is depressed.




310RW020

ON-VEHICLE SERVICE (AW30 –40LE) 7A3-25

Input and Output Revolution Sensor
Inspection

1. Disconnect the input and output revolution sensor
connector.
2. Use an ohmmeter to measure the resistance between terminals 1 and 2.
Standard resistance
Input revolution sensor: 387 – 473






(at 20

 

C,
4

 
2)
, 560
– 680





(at 20

 

C, 4
 
4)
Output revolution sensor: 560 – 680






(at 20

 

C)




F07RY00018



Pattern Select Switch
Inspection
Inspect that there is continuity between each terminals.




RTW37ASH000501

7A3-26 ON-VEHICLE SERVICE (AW30 –40LE)

Solenoid
Inspection

1. Resistance check

Using an ohmmeter, check the resistance
between each terminals (S1/S2/SL) and body.
Solenoid S1, S2 and lock-up solenoid SL
resistance:
11 – 15






(at 20
 
C)
(Reference) 12 – 16






(at 40
 
C)

Using an ohmmeter, check the resistance
between each terminals (STH) and (STHG).
Pressure control solenoid resistance:
5 – 5.6






(at 20
 
C)
(Reference) 5.4 – 6.1






(at 40
 
C)



220L100001
NOTE: If the pressure control solenoid resistance is not
within speciation, replace the valve body assembly.



2. Operation check
Check the solenoid operation by blowing into an oil
hole as shown in the figure.
Solenoid S1 and S2 (Normal close type)


When battery terminal is disconnected No air leaks
When battery terminal is
connected Air passes through

Lock-up solenoid SL (Normal open type)



When battery terminal is disconnected Air passes through
When battery terminal is
connected No air leaks





244RX00001




244RY00005

ON-VEHICLE SERVICE (AW30 –40LE) 7A3-27

ATF Temperature Sensor
Inspection

1. Disconnect the front side ATF cooler pipe from the
elbow and remove the elbow.
2. Remove the ATF temperature sensor from the transmission case.
3. Place the ATF temperature sensor in a container o
f
ATF.



RUW37ASH004001
4. Measure the resistance between each terminals,
while warming ATF.
Resistance: 0.5 – 30 k






(at 0

 

C – 120 
 

C)
5. If either of the measured values exceeds the
specified value, replace the ATF temperature
sensor.
Torque: 15 N 


m (11 Ib ft)

7A3-28 ON-VEHICLE SERVICE (AW30 –40LE)

Select Lever



RTW37ALF001101
Legend

(6) Base plate
(1) Rear console
(7) Grooved pin
(2) Front console
(8) Spring plate
(3) Select lever knob
(9) Lever assembly
(4) Upper housing
(10) Sleeve
(5) Lamp assembly


Remove or Disconnect
1.
Block the wheels.
2.
Disconnect the negative battery cable.
3.
Remove the rear console and the front console.
4.
Remove the 2 screws fixing the select lever knob.

5.
Remove the knob together with the knob button and
spring from the lever.
6.
Turn the sleeve counterclockwise to remove it. Make
a note of the number of turns required to free the
sleeve.
7.
Remove the harness connectors from the base plate.

ON-VEHICLE SERVICE (AW30 –40LE) 7A3-29

8.
Remove the upper housing (held in place by 4
latched fasteners).
9.
Remove the spring plate.
10.
Remove the grooved pin.
11.
Remove the lever assembly by pressing the rod
down (lever in N position).
12.
If lamp replacement is required, remove the lamp
assembly from the lamp socket (align the socke
t
grooved portion and the lamp assembly protruding
portion).

Install or Connect
NOTE
Apply MULTEMP No. 2 grease (or equivalent) to the
select lever. Refer to the illustration.
RTW37ALH000201

1.
Install the lever assembly to the base plate.
a.
Insert and secure shaft.
b.
Insert paw led end of shaft into base plate hole.
c.
Insert grooved pin of shaft into detente aperture
(lever assembly in N position).
2.Install the spring plate. a.
Insert the grooved pin into the base plate detente
groove until it touches the front wall (leve
r
assembly in N position).
RTW37ASH001001
b.
Install the spring plate tighten the screws to the
specified torque.


Screw torque 2 N

m (0.2 kg

m/17 lb in)
c.
Check that the grooved pin moves smoothly in
the detente groove (shift knob temporaril
y
installed).
3.
Temporarily install the sleeve.
4.
Install the lamp assembly to the lamp socket (i
f
removed at disassembly).
a.
Align the recessed portion of the lamp socket with
the protruding portion of the lamp assembly.
b.
Insert the lamp assembly into the lamp socket
and rotate it 90 degrees clockwise.
5.
Attach the harness connectors to the base plate.
6.
Move the lever to the “P ” position.
7.
Install the sleeve (rotate the sleeve clockwise the
same number of turns it was rotated
counterclockwise at disassembly).
8.
Install the knob, the knob button, and the knob
spring.

7A3-30 ON-VEHICLE SERVICE (AW30 –40LE)

9.
Adjust the clearance (2) between the detente plate
and the pin by moving the select lever knob sleeve
(1).
Detente plate and pin clearance
mm(in
)
0.2 - 1.0 (0.01 - 0.04)

255R300002
10.
Install the 2 screws securing the knob and tighten
them to the specified torque.
Screw torque: 2 N 
m (0.2kg 
m/17 lb in)
11.
Install the upper housing. Make sure that the 4
latched fasteners are securely closed.