Isuzu Trooper (1998-2002 year). Manual — part 147
4B2–75
DRIVE LINE CONTROL SYSTEM (TOD)
Chart A
Indicator drive circuit
Function of circuit
The circuit informs the indicator of the working condition of the ECU.
Fail condition
All the TOD indicator lamps and CHECK lamp are lit, and go off momentarily at an
interval of about two seconds.
Indicator lamp status
—
Transfer position
2H, TOD, 4L
—
D04RY00114
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–76
D04RY00115
Step
Action
Yes
No
1
Turn on the starter switch.
Is the battery voltage observed between terminals 1 and 19?
The ECU has
failed. Replace
the ECU.
Go to Step 2
Check the battery
circuit.
Go to Step 2
2
Check that all the parts are mounted.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 2
4B2–77
DRIVE LINE CONTROL SYSTEM (TOD)
Chart B–1
The 4WD AUTO switch circuit wires are broken or short-circuited to the GND
Function of circuit
—
Fail condition
Even after the transfer mode is selected from TOD to 2H, the indicator lamp status is not
changed.
Indicator lamp status
—
Transfer position
2H
—
D04RY00114
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–78
D04RY00115
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