Vsv Assembly; Axle Position Switch - Isuzu Trooper 1999 Workshop Manual

VSV Assembly

Inspect the vehicle side harness as follows:
Legend
(1) Grey
(2) Blue
1. Remove connector.
2. Shift transfer lever to 2H and start the engine.
NOTE: Do not move the vehicle while inspection.
3. Make sure that there is continuity in the vehicle side of
harness. If there is no continuity, check transfer shift
switch and wiring.
Inspect both VSVs as follows:
1. With battery not connected (Usual).
A–C:There is continuity
B:Closed
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
2. With battery connected
A – B:There is continuity
C:Closed
3. If 1) and 2) fail, replace with a new VSV.

Axle Position Switch

412RS071
1. With ball (1) being free
A – B:There is continuity
2. With ball forced into the switch
A – B:No continuity
3. If 1) and 2) fail, replace with a new switch.
Motor Actuator Assembly
Inspect the function of the motor actuator assembly as
follows:
F04RS004
4B1–21
412RS048