Isuzu 2008MY N Series, Руководство по ремонту

Страница: 275 / 404

1A-272 Engine Control System (4HK1)
3
1. Turn OFF the ignition.
2. Disconnect the in-line harness connector from
the cylinder head cover case.
3. Turn ON the ignition, with the engine OFF.
4. Connect a DMM between the cylinder #2 or #3
solenoid control circuit and a known good
ground.
Is the DMM voltage more than the specified
value?
12.0 volts
Go to Step 4 Go to Step 6
4
Connect a test lamp between the charge voltage
circuit and a known good ground.
Does the test lamp illuminate?
—
Go to Step 7 Go to Step 5
5
Connect a test lamp between the charge voltage
circuit and battery voltage.
Does the test lamp illuminate?
—
Go to Step 8 Go to Step 9
6
1. Test the control circuits between the ECM and
the in-line harness connector for a short to
ground.
• Cylinder #2: Between pin 118 of E-12
and 6 of H-70
• Cylinder #3: Between pin 120 of E-12
and 7 of H-70
2. Repair the circuit(s) as necessary.
Did you find and correct the condition?
—
Go to Step 15 Go to Step 14
7
1. Test the charge voltage circuits between the
ECM and the in-line harness connector for a
short to battery or ignition voltage.
• Cylinder #2: Between pin 118 of E-12
and 6 of H-70
• Cylinder #3: Between pin 120 of E-12
and 7 of H-70
2. Repair the circuit(s) as necessary.
Did you find and correct the condition?
—
Go to Step 15 Go to Step 14
8
1. Test the charge voltage circuits between the
ECM and the in-line harness connector for a
short to ground.
• Cylinder #2: Between pin 116 of E-12
and 2 of H-70
• Cylinder #3: Between pin 116 of E-12
and 3 of H-70
2. Repair the circuit(s) as necessary.
Did you find and correct the condition?
—
Go to Step 15 Go to Step 14
Step Action Value(s) Yes No
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