Isuzu Trooper (1998-2002 year). Service manual — part 154
4B2–103
DRIVE LINE CONTROL SYSTEM (TOD)
Step
No
Yes
Action
15
When the transfer lever is shifted to the high position and 4WD
AUTO SW is selected to the 4WD position, is 0V observed on
each VSV?
Go to Step 16
Repair the circuit
or replace the
VSV.
Go to Step 19
16
When the transfer lever is shifted to the 4L position, is 0V
observed on each VSV?
Go to Step 17
Repair the circuit
or replace the
VSV.
Go to Step 19
17
Is the vacuum pressure supplied to the VSV?
Go to Step 18
Repair the
vacuum system.
Go to Step 19
18
Can the single AXLE switch enable and disable the continuity?
Repair the shift
on the fly system
(refer to Section
4B1 and 4C.)
Replace the
AXLE switch
(refer to Section
4B1 and 4C of
Chassis Repair
Manual).
19
Check that all the parts are mounted.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 19
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–104
Chart E–2
The AXLE switch circuit is short-circuited to GND.
Function of circuit
—
Fail condition
Even after the 4WD AUTO SW is select to the 2WD position, the 2WD mode is not
enabled. (The transition status is not removed.)
Indicator lamp status
Transfer position
2H
D04RY00068
4B2–105
DRIVE LINE CONTROL SYSTEM (TOD)
D04RY00069
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–106
D04RY00070
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