Isuzu N 2008 Series Workshop Manual page 152

Step
1. Turn OFF the ignition.
2. Disconnect
connector.
3. Inspect for
connections and corrosion at the harness
connector of the CMP sensor (pins 1, 2 and 3
of E18).
4
4. Disconnect the ECM harness connector.
5. Inspect for
connections and corrosion at the harness
connector of the ECM (pins 87, 98, 100 and
101 of E12).
6. Repair the connection(s) as necessary.
Did you find and correct the condition?
1. Inspect the CMP sensor and chain sprocket
for the following conditions:
• Physical damage of sensor
• Loose or improper installation of sensor
• Excessive air gap
• Foreign material passing between sensor
5
and chain sprocket
• Physical damage of chain sprocket
• Loose or improper installation of chain
sprocket
2. Repair or replace as necessary.
Did you find and correct the condition?
Replace the CMP sensor. Refer to CMP Sensor in
Section 1B Engine Mechanical.
6
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.
7
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.
8
Are there any DTCs that you have not diagnosed?
Action
the CMP sensor harness
an intermittent, for
an intermittent, for
all previously disconnected
the conditions that
Engine Control System (4JJ1)
Value(s)
poor
—
poor
—
—
—
you
—
Yes
Go to Step 7 Go to Step 5
Go to Step 7 Go to Step 6
Go to Step 7
Go to Step 2 Go to Step 8
Go to DTC List
1A-149
No
—
System OK