Isuzu 2008MY N Series Workshop Manual page 317

1A-314 Engine Control System (4HK1)
Step
Important:
programmed and learned.
12
Replace the ECM. Refer to ECM Replacement.
Did you complete the replacement?
Important:
programmed and learned.
Replace the TCM. Refer to TCM in Section 5A
13
Transmission Control System in Section 5A
Transmission Control System.
Did you complete the replacement?
1. Reconnect
harness connector(s).
2. Clear the DTCs with a scan tool.
3. Turn OFF the ignition for 30 seconds.
4. Start the engine.
14
5. Operate the vehicle within the Conditions for
Running the DTC. You may also operate the
vehicle
observed from the Freeze Frame/ Failure
Records.
Did the DTC fail this ignition?
Observe the DTC information with a scan tool.
15
Are there any DTCs that you have not
diagnosed?
Action
Replacement ECM
Replacement TCM
all previously disconnected
within the conditions
Value(s)
must be
—
must be
—
—
that you
—
Yes
Go to Step 14
Go to Step 14
Go to Step 3 Go to Step 15
Go to DTC List
No
—
—
System OK