check oil ISUZU AXIOM 2002 Service Service Manual

DRIVE LINE CONTROL SYSTEM (TOD) 4B2±54
StepActionYe sNo
11. Clear the trouble code.
2. Start the engine
3. Set the TOD mode.
Is there DTC31 (P1721)?
Go to Step 2
Refer to ªTrouble
intermittently
observedº.
21. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Is the continuity established between terminals (C±38)11 and
(C±38)22?
Go to Step 3Go to Step 5
31. Connect the ECU connector.
2. Start the engine.
3. Set the TOD mode.
Does the voltage between terminals 11 and 22 indicate at least
0.4V?
Go to Step 4Go to Step 6
4Is the battery voltage always observed between terminals 11 and
22?The harness is
short±circuited on
the battery.
Repair the circuit.
Go to
Step 8Go to Step 6
51. Disconnect the A±1 connector.
Is the continuity established between transfer connector
terminals (A±1)8 and (A±1)7?
The harness is
broken. Repair
the circuit.
Go to
Step 8
Replace the
transfer
electromagnetic
coil (solenoid
clutch).
Go to
Step 8
61. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Is the resistance between the connector (C±38) terminal 11 and
22 1.0 ~ 5.0
?The ECU has
failed. Replace
the ECU
Go to
Step 8Go to Step 7
7Is the resistance between the transfer connector (A±1) terminal 8
and 7 1.0 ~ 5.0
?
The harness is
disconnection or
short to GND.
Repair the circuit.
Go to
Step 8
Replace the
transfer
electromagnetic
coil (solenoid
clutch).
Go to
Step 8
81. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
ªDiagnosis Flowº.
Return to Step 8

DRIVE LINE CONTROL SYSTEM (TOD) 4B2±104
StepActionYe sNo
1Are the front and rear tires in specified size?
Go to Step 2
Replace the tires
with specified
ones, and service
the new tires.
Go to
Step 16
2Is the tire pressure correct?
Go to Step 3
Inflate the tires
with specified
pressure.
Go to
Step 16
3Are the tires free from abnormal wear?
Go to Step 4
Replace the tires
with specified
ones, and service
the new tires.
Go to
Step 16
4Are different types of tires used?
Go to Step 5
Replace the tires
with specified
ones, and service
the new tires.
Go to
Step 16
51. Start the engine.
2. Select the TOD switch to the TOD position.
3. Fully turn the steering to the left (or right) end, and select the D
range and start the creep run.
Does the tight corner braking occur? Is the judder with chug-chug
sound observed? * Use caution on the operation.
Go to Step 6 Go to Step 11
61. Select the TOD switch to the 2H position.
2. Fully turn the steering to the left (or right) end, and select the D
range and start the creep run.
Does the tight corner braking occur? Is the judder with chug-chug
sound observed? * Use caution on the operation.
Go to Step 7 Go to Step 14
7Is an LSD mounted to the rear differential? Go to Step 8 Go to Step 9
8Is the genuine LSD oil used in the rear differential?
Go to Step 9
Replace the
differential oil.
Go to
Step 16
9Does the engine output the power correctly?
Go to Step 10
Check the
engine.
Go to
Step 16
10Do the speed sensors work correctly? (Check trouble codes.)The ECU has
failed. Replace
the ECU.
Go to
Step 16
Replace the
speed sensors.
Go to
Step 16
11Is the tight corner braking observed only when the brake is
applied?
Go to Step 12
Conduct full
steering under
WOT.
Go to
Step 5
121. Turn on the starter switch.
Is 8 ~ 10 V observed between terminals 33 and 47?
Go to Step 13
Repair the circuit
of the ECU
connector
terminal 33 (ABS
IN).
Go to
Step 16

4C±4
DRIVE SHAFT SYSTEM
7. Remove hub and disc assembly.
8. Remove ABS sensor ring.
9. Remove outer bearing.
10. Remove oil seal.
11. Remove inner bearing.
12. Use a brass bar to remove the outer bearing outer
race(1), oil seal, inner bearing and inner bearing outer
race(2) from the hub.
411RS002
13. Remove bolt.
14. If necessary, replace the wheel pin in the following
manner.

Scribe mark(1) on hub to disc before disassembly
to insure proper assembly.
411RS003

Clamp hub and disc assembly in vise, using
protective pads. Remove six(6) disc-to-hub
retaining bolts.
411RS021

Place hub on a suitable work surface and remove
wheel studs, as required, using a hammer.
411RS004
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal condition are
found through inspection.
Check the following parts.

Hub

Hub bearing oil seal

Knuckle spindle

Disc

Caliper

ABS sensor ring
For inspection and servicing of disc caliper and related
parts, refer to
Disc Brake in Brake section.

4C±10
DRIVE SHAFT SYSTEM
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal condition are
found through inspection.
Check the following parts.

Hub

Hub bearing, oil seal

Knuckle spindle

Disc

Caliper

Shift on the fly system parts (Cap, Hub flange, Shim,
Snap ring)

ABS sensor ring
For inspection and servicing of disc caliper and related
parts, refer to
Disc Brakes in Brake section.
Reassembly
1. Install wheel pin.

Place the hub on a wood workbench or a block of
wood approx. 6º by 6º to protect the wheel stud
ends and threads.

Insert a wheel stud using a hammer.
NOTE: Be sure the wheel stud is started squarely and
seats completely.
411RS005
2. Align scribe marks(1) and attach the hub to the disc,
then tighten the bolts to the specified torque.
Torque: 103 N´m (76 lb ft)
411RS003
3. Install inner bearing.
Install the outer race by driving it into the hub by using
insatller J±36829 and grip J±8092.
901RW055

4C±13 DRIVE SHAFT SYSTEM
Front Drive Shaft Joint
Front Drive Shaft Joints
Replacement

Refer to Front Drive Axle Assembly Replacement in
this section, and refer to
Front Hub and Disc Overhaul
in Suspension
section.
Front Hub Bearing Preload Check
Check the hub bearing preload at the wheel pin.
New bearing and New oil seal:
19.6 ± 24.5 N (4.4 ± 5.5 lb)
Used bearing and New oil seal:
11.8 ± 17.7 N(2.6 ± 4.0 lb)
411RS011
Inspection Of Shift On The Fly System
Gear Oil
412RY00008
1. Open filler plug and make sure that the oil up to the
plug port.
If the oil is short, replenish with gear oil GL±5 grade.
2. Tighten the filler plug to specified torque.
Torque: 78 N´m (58 lb in)

4C±16
DRIVE SHAFT SYSTEM
7. Remove ball retainer, ball guide and bellows.
8. Raise the hooked end of the band with a screwdriver
or equivalent.
412RS014
9. Remove band(1).
10. Remove bellows.
11. Remove dust seal.
12. Remove BJ shaft assembly.
13. Remove the mounting bracket fixing bolts, and then
remove DOJ case assembly from the axle case.
14. Remove snap ring and bearing.
15. Remove snap ring and oil seal.
16. Remove bracket.
Inspection And Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal condition are
found through inspection.
Check the following parts.
1. Drive shaft joint assembly
2. DOJ case, ball, ball guide, ball retainer
3. Bellows
4. Bearing
5. Dust seal, oil seal
Bushing Replacement

Remove the bushings using a remover J±39378±1
and hammer.
412RS015

By using installer J±39378±2 and base J±39378±3,
press fit the bushings into the bracket.
412RS016

4C±17 DRIVE SHAFT SYSTEM
Reassembly
1. Install DOJ case to bracket.
2. Install oil seal and fix snap ring.
3. Install bearing and fix snap ring.
4. Install bracket to axle case. Tighten the bracket bolt to
the specified torque.
Torque: 116 N´m (85 lb ft)
5. Apply 150g of the specified grease in BJ.
6. Install dust seal.
7. Apply a thin coat of grease to the shaft for smooth
installation then install bellows.
8. Install band. Note the setting direction. After
installation, check that the bellows is free from
distortion.
412RS017
9. Install another bellows and fix band.
10. Install the ball guide with the smaller diameter side
ahead onto the shaft.
11. Install ball retainer.
12. Using snap ring pliers, install the snap ring (1)
securing the ball retainer to the shaft.
412RS013
13. Align the track on the ball (1) retainer with the window
in the cage, and install the six balls into position.
412RS018
14. Pack 150g of the specified grease in DOJ case, then
install drive shaft joint assembly. After reassembly,
move the DOJ longitudinally several times to get to fit.

4C±22
DRIVE SHAFT SYSTEM
Sleeve Condition
Check and see that there is not wear damage, or cracking
in the sleeve.
NOTE: Close inspection of the groove and inner gear are
required because those are important parts.
Sleeve Function
412RY00039Test the sleeve for smoothness by sliding it between the
inner shaft and the clutch gear, replace the sleeve if its
difficult to slide.
NOTE: Gear oil should be applied to the contact surface
of gear.
Check the width of sleeve center groove.
Limit: 7.1 mm (0.28 in)
412RW022
Clutch Gear Condition
Check for wear, damage, crack or any other deterioration
in the clutch gear.
Clutch Gear Function
412RY00038Test the sleeve for smoothness by sliding it across the
clutch gear, replace the clutch gear if its difficult to slide.
NOTE: When inspecting, gear oil should be applied to the
contact surface of gear.
Clutch Gear Journal Diameter
Make sure of the size illustrated.
Limit: 36.98 mm (1.456 in)
412RY00037

4C±23 DRIVE SHAFT SYSTEM
Actuator
Check for damage, cracking or other abnormality.
Functional Check
412RY00041
412RY00009Verify functionality by applying voltage (12V) to terminals
3 and 4 and set the tester to terminal 1 and 2 according to
the table bellow.
State
Trminal 3Trminal 4
Electric
circuit
between
terminal
1 & 2
Functio
n
A+12VGroundOK2WD
BGround+12VNONE4WD
If there is an abnormality, replace the actuator as an
assembly.NOTE: Be careful not to permit the entry of water or dust
into of the actuator.
Dimentional Check
Measure illustrated sizes 1, 2, and 3.
412RY00010
Limit
1=64.3 mm (2.53 in)
2=6.7 mm (0.26 in)
3=6.7 mm (0.26 in)
Reassembly
1. Install the new oil seal which has been immersed in
differential gear oil, by using an oil seal installer
J±41693 and grip J±8092.
412RW034

4C±52
DRIVE SHAFT SYSTEM
Front Drive Shaft Joint
Front Drive Shaft Joints
Replacement

Refer to Front Drive Axle Assembly Replacement in
this section, and refer to
Front Hub and Disc Overhaul
in Suspension section.
Front Hub Bearing Preload Check
Check the hub bearing preload at the wheel pin.
New bearing and New oil seal:
24.5 N (4.4 ± 5.5 lb)
Used bearing and New oil seal:
11.8± 17.7 N(2.6 ± 4.0 lb)
Inspection Of Shift On The Fly System
Gear Oil
412RY00008
1. Open filler plug and make sure that the oil is up to the
plug port.
If the oil is short, replenish with gear oil GL±5 grade.
2. Tighten the filler plug to the specified torque.
Torque: 78 N´m (58 lb in)