Isuzu 2008MY N Series Workshop Manual page 212

Step
1. Turn OFF the ignition.
2. Disconnect the ECM harness connector.
3. Inspect for an intermittent and for a poor
connection at the harness connector of the
14
ECM (pin 35 of J-14).
4. Repair the connection(s) as necessary.
Did you find and correct the condition?
Replace the dropping resistor.
15
Did you complete the replacement?
Replace the MAF sensor. Refer to MAF/IAT Sensor
in Section 1J Induction.
16
Did you complete the replacement?
Important: Replacement
programmed and learned.
17
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.
4. Turn ON the ignition, with the engine OFF.
18
5. Operate the vehicle within the Conditions for
Running the DTC. You may also operate the
vehicle within
observed from the Freeze Frame/ Failure
Records.
Did the DTC fail this ignition?
Observe the DTC Information with a scan tool.
19
Are there any DTCs that you have not
diagnosed?
Action
ECM must
the conditions that
Engine Control System (4HK1)
Value(s)
—
—
—
be
—
—
you
—
Yes
Go to Step 18 Go to Step 17
Go to Step 18
Go to Step 18
Go to Step 18
Go to Step 3 Go to Step 19
Go to DTC List
1A-209
No
—
—
—
System OK