Isuzu 2000 Trooper Workshop Manual page 468

4B2–90 DRIVE LINE CONTROL SYSTEM (TOD)
Step
1 Do the indicator lamps show the correct status?
2 Is any of the trouble codes 28, 32 and 33 recorded?
3 Turn on the starter switch.
Is the battery voltage observed between terminals 14 and 22?
4 When the 4WD Auto Switch is select to the 2WD position, are the
front axle gears correctly disengaged (and when the left front tire
is jacked up and turned, is the front propeller shaft standstill)?
5 Does the battery voltage maintain the correct level?
6 Check that all the parts are mounted.
Is this step complete?
Action Yes
Examine the
trouble based on
"Diagnosis from
Trouble Codes".
Go to Step 2 Go to Step 2
Examine the
trouble based on
"Diagnosis from
Trouble Codes".
Go to Step 6 Go to Step 3
Go to Step 4 Go to Step 5
The phenomenon
is not
The shift on the
reproduced.
fly system is
Refer to
failed (refer to
"Troubles
Section 4B1
intermittently
"Driveline Control
observed".
System").
Go to Step 6
Go to Step 6
Repair the battery
Repair the battery
and charging
circuit.
Go to Step 6 Go to Step 6
Repeat the
Return to Step 6
"Diagnosis Flow".
No
system.