1998 ISUZU TROOPER Service Repair Manual

Page 561 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±28
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
2.Case that indicator keeps 2Hz blinking after
aforementioned Solution 3 is carried out.
Step
ActionYe sNo
1Check the air pressure and wear of all

Page 562 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±29 DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
3.Case that indicators blinking changes to 4Hz
after aforementioned Solution 4 is carried out.
Step
ActionYe sNo
1
Can the transfer lever be opera

Page 563 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±30
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
Front Axle Diagnosis
When the 4WD switch is operated from 4H to 2H,
indicator light does not go out.
Step
ActionYe sNo
1Drive slow 100 Ð 200m aft

Page 564 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±31 DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
When the 4WD switch is operated from 2H to 4H,
indicator light is not actuated.
Step
ActionYe sNo
1Drive slow 100 Ð 200m after a few minutesº id

Page 565 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±32
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
Shift on the Fly Vacuum Piping and Electric Equipment 
(For Push Button Type)
Vacuum Piping Diagram
C04RW013
VSV Assembly, Actuator Assembly
412RS0

Page 566 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±33 DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
Inspection and Repair
Vacuum Piping
C04RW014
1. Pull out the Hose A in figure and install a vacuum
gauge.
2. Plug up Hose B in figure to prevent th

Page 567 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±34
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
4. If vacuum is not applicable as much as ±400mmHg,
and if there is resistance on the intake side, replace
with a new check valve.
VSV Assembly
In

Page 568 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B1±35 DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
1. Disassemble the motor actuator from transfer rear
case.
412RW037
Legend
(3) Shift Rod
(4) Connector
2. Connect the terminals as shown in figure.