Diagnosis From Trouble Codes - Isuzu 2000 Trooper Workshop Manual

4B2–30 DRIVE LINE CONTROL SYSTEM (TOD)

Diagnosis from Trouble Codes

D Diagnose the based on the fault that have been saved
to the control unit according to the system
self-diagnostic function.
Check flow Trouble code
1 23, 36, 37, 38
Step
1 Turn on the starter switch.
Is the trouble reproduced?
2 1. Clear the trouble codes.
2. Conduct the test run.
Is the trouble reproduced during the test run?
3 1. Check that all the parts are mounted.
2. Clear the trouble codes.
Is this step complete?
Phenomenon
The ECU is failed.
Action
Standard
—
Yes
Replace the ECU
and conduct the
test run.
Go to Step 2
Go to Step 3
The trouble is not
reproduced.
Replace the ECU "Troubles
and conduct the
intermittently
test run. observed".
Go to Step 3 Go to Step 3
Repeat the
Return to Step 3
"Diagnosis Flow".
No
Refer to