Engine Control System (4HK1) 1A-273
9
1. Inspect for an intermittent and for poor
connections at the in-line harness connector.
2. Disconnect the ECM harness connector.
3. Inspect for an intermittent and for a poor
connection at the harness connector of the
ECM.
4. Inspect for an open circuit or high resistance
on the charge voltage circuit between the
ECM and the in-line harness connector.
5. Repair the connection(s) or circuit(s) as
necessary.
Did you find and correct the condition?
—
Go to Step 15 Go to Step 10
10
1. Remove the cylinder head cover. Refer to
Cylinder Head Cover in Section 1B Engine
Mechanical.
2. Inspect the fuel injector harness for loose
injector terminal nuts, objects touching injector
terminals.
3. Inspect for an intermittent and for poor
connections at the in-line harness connector.
4. Repair the connection(s) as necessary.
Did you find and correct the condition?
—
Go to Step 15 Go to Step 11
11
Measure insulation resistance of the cylinder #2
and #3 fuel injector between each fuel injector
terminal and a known good ground.
Is the resistance more than the specified
value?
1MΩ
Go to Step 12 Go to Step 13
12
Repair or replace the fuel injector harness.
Did you complete the repair or replace?
—
Go to Step 15
—
13
Important: Replacement injector must be
programmed.
Replace the appropriate fuel injector that was less
insulation resistance found at Step 11. Refer to
Injector in Section 1D Engine Fuel.
Did you complete the replacement?
—
Go to Step 15
—
14
Important: Replacement ECM must be
programmed and learned.
Replace the ECM. Refer to ECM Replacement.
Did you complete the replacement?
—
Go to Step 15
—
15
1. Reconnect all previously disconnected
harness connector(s).
2. Clear the DTCs with a scan tool.
3. Turn OFF the ignition for 30 seconds.
4. Start the engine.
Operate the vehicle within the Conditions for
Running the DTC. You may also operate the
vehicle within the conditions that you
observed from the Freeze Frame/Failure
Records.
Did the DTC fail this ignition?
—
Go to Step 3 Go to Step 16
Step Action Value(s) Yes No
LG4HKED-WE-0871.book 273 ページ ２００７年１１月２９日 木曜日 午後６時２９分
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