Isuzu 2008MY N Series Workshop Manual page 228

Step
Important: Replacement
programmed and learned.
16
Replace the ECM. Refer to ECM Replacement.
Did you complete the replacement?
1. Reconnect all previously disconnected fuse or
harness connector(s).
2. Clear the DTCs with a scan tool.
3. Turn OFF the ignition for 30 seconds.
17
4. Turn ON the ignition for 10 seconds.
5. Start the engine.
6. Monitor the DTC Information with a scan tool.
Did the DTC fail this ignition?
Observe the DTC Information with a scan tool.
18
Are there any DTCs that you have not
diagnosed?
Action
ECM must
Engine Control System (4HK1)
Value(s)
be
—
—
—
Yes
Go to Step 17
Go to Step 3 Go to Step 18
Go to DTC List
1A-225
No
—
System OK