Isuzu 2000 Trooper Workshop Manual page 427

Step
1 1. Turn on the starter switch.
2. Set the transfer to the 2H mode.
Is the battery voltage observed between terminals 23 and 46?
2 Is the battery voltage observed between terminals 42 and 46?
3 1. Set the transfer to the high (TOD) mode.
Does the voltage between terminals 23 and 46 indicate 0V?
4 Does the voltage between terminals 42 and 46 indicate 0V?
5 Does the TOD indicator show the 2H mode?
6 Set the transfer to the high (TOD) mode.
Does the voltage between terminals 23 and 46 indicate 0V?
7 1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
DRIVE LINE CONTROL SYSTEM (TOD)
Action Yes
Go to Step 2 Go to Step 5
Go to Step 3 Go to Step 6
The ECU has
failed. Replace
Go to Step 4
Go to Step 7
The phenomenon
is not
reproduced. The shift on the
Refer to fly system is
"Troubles failed (refer to
intermittently Section 4C "Front
observed".
Go to Step 7 Go to Step 7
See "Trouble
Diagnosis
The ECU has Depending on
failed. Replace The Status of
the ECU. TOD Indicator".
Go to Step 7 Go to Step 7
The shift on the
fly system has
failed (refer to
The ECU has
Section 4B1
"Driveline Control failed. Replace
System").
Go to Step 7
Go to Step 7
Repeat the
"Diagnosis Flow". Return to Step 7
4B2–49
No
the ECU.
Axle").
the ECU.