Isuzu 2008MY N Series, Руководство по ремонту

Страница: 139 / 404

1A-136 Engine Control System (4HK1)
10
1. Test the control circuit between the ECM and
the in-line harness connector for a short to the
common 2 charge voltage circuit.
2. Repair the circuit(s) as necessary.
Did you find and correct the condition?
—
Go to Step 17 Go to Step 15
11
1. Test the control circuit between the ECM and
the in-line harness connector for a short to
battery or ignition voltage.
2. Repair the circuit(s) as necessary.
Did you find and correct the condition?
—
Go to Step 17 Go to Step 15
12
1. Test the control circuit between the ECM and
the in-line harness connector for an open
circuit or high resistance.
2. Repair the connection(s) as necessary.
Did you find and correct the condition?
—
Go to Step 17 Go to Step 14
13
1. Test the cylinder #2 fuel injector circuits
between the fuel injector terminals and the in-
line harness connector for the following
conditions:
• An open circuit
• A short circuit each other
• High resistance
2. Repair the circuit(s) or replace the fuel injector
harness as necessary.
Did you find and correct the condition?
—
Go to Step 17 Go to Step 15
14
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
ECM.
4. Repair the connection(s) as necessary.
Did you find and correct the condition?
—
Go to Step 17 Go to Step 16
15
Important: Replacement fuel injector must be
programmed.
Replace the cylinder #2 fuel injector. Refer to
Injector in Section 1D Engine Fuel.
Did you complete the replacement?
—
Go to Step 17
—
16
Important: Replacement ECM must be
programmed and learned.
Replace the ECM. Refer to ECM Replacement.
Did you complete the replacement?
—
Go to Step 17
—
Step Action Value(s) Yes No
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