Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 614
4A2–38 DIFFERENTIAL (REAR)
ILLUSTRATION
TOOL NO.
TOOL NAME
J–42829
Installer; Side bearing
J–39602
Remover; Outer bearing
J–39858
Clutch pack unloading
tool kit Includes
J–34174–1/J–34174–2
Screw cap and Cap
J–22342–15
Forcing screw
J–44450
Side gear holder
4B1–1
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
TROOPER
DRIVELINE/AXLE
DRIVELINE CONTROL SYSTEM (SHIFT ON THE FLY)
CONTENTS
Service Precaution
4B1–1
. . . . . . . . . . . . . . . . . . . . . .
Shift On The Fly System
4B1–2
. . . . . . . . . . . . . . . . .
Outline of Shift on The Fly System
4B1–2
. . . . . . . . .
Functions of Indicator Lamp
4B1–6
. . . . . . . . . . . . . .
Diagnosis
4B1–7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Axle Diagnosis
4B1–17
. . . . . . . . . . . . . . . . . . . . .
Shift On The Fly Vacuum Piping And
Electric Equipment
4B1–19
. . . . . . . . . . . . . . . . . . . . . .
Vacuum piping diagram
4B1–19
. . . . . . . . . . . . . . . . . .
Inspection And Repair
4B1–20
. . . . . . . . . . . . . . . . . . .
4WD Control Unit
4B1–23
. . . . . . . . . . . . . . . . . . . . . . .
4WD Control Unit Associated Parts
4B1–23
. . . . . .
Removal
4B1–24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
4B1–24
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
4B1–2
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
Shift On The Fly System
Outline of Shift on The Fly System
The shift on the fly system switches between 2 wheel
drive (2WD) and 4 wheel drive (4WD) electrically by
driver’s pressing the 4WD switch (push button type) on
instrument panel.
This system controls below operations. (Shifting between
“4H” and “4L” must be performed by transfer control lever
on the floor.)
1. Shifting the transfer front output gear (Connecting to,
and disconnecting from, front propeller shaft by motor
actuator).
2. Retrial of shifting the transfer front output gear.
3. Connecting front wheels to, and disconnecting them
from, the front axles by vacuum actuator.
4. Indicator on instrument panel.
5. 4WD out signal to other Electronic Hydraulic Control
Unit.
System Diagrams
412RX003
4B1–3
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
Normal Operation
The motor actuator mounted on transfer rear case is
driven by signal from 4WD switch on instrument panel.
After complete the connecting transfer front output gear
to, or disconnecting it from, front propeller shaft, condition
of the transfer position switch changes. The vacuum
solenoid valve (VSV) is driven by the signal from transfer
position switch and the vacuum actuator connects front
wheels to, or disconnect them from, front axles.
Time Chart of Shifting Under Normal Condition
F04RW002
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