Isuzu KB P190. Manual — part 585
6E–170
ENGINE DRIVEABILITY AND EMISSIONS
7
Using the DVM and check the injector power supply
circuit for the affected cylinder.
1. Ignition “On”, engine “Off”.
2. Disconnect the injector connector for the affected
cylinder.
3. Check the circuit for open circuit.
Was the DVM indicated specified value?
10 - 14.5V
Go to Step 9
Go to Step 8
8
Repair the open or short to ground circuit between the
“IGN” fuse (15A) and injector for the affected cylinder.
Is the action complete?
—
Verify repair
—
Step
Action
Value(s)
Yes
No
V
1
E-6
No.1 Cylinder
V
1
E-7
No.2 Cylinder
V
1
E-8
No.3 Cylinder
V
1
E-9
No.4 Cylinder
ENGINE DRIVEABILITY AND EMISSIONS
6E–171
9
Using the DVM and check the injector signal circuit for
the affected cylinder.
Breaker box is available:
1. Ignition “Off”, engine “Off”.
2. Install the breaker box as type A. (ECM
disconnected) Refer to 6E-88 page.
3. Disconnect the injector connector for the affected
cylinder.
4. Check the circuit for open or short to ground
circuit.
Was the problem found?
—
Repair faulty
harness and
verify repair
Go to Step 10
Step
Action
Value(s)
Yes
No
J1-9
Breaker Box
2
Ω
Ω
No. 1 Cylinder
E-6
J1-22
Breaker Box
2
Ω
Ω
No. 2 Cylinder
E-7
J1-8
Breaker Box
Ω
Ω
No. 3 Cylinder
E-8
2
J1-11
Breaker Box
2
Ω
Ω
No. 4 Cylinder
E-9
6E–172
ENGINE DRIVEABILITY AND EMISSIONS
9
Breaker box is not available:
1. Ignition “Off”, engine “Off”.
2. Disconnect the injector connector for the affected
cylinder and ECM connector.
3. Check the circuit for open or short to ground
circuit.
Was the problem found?
—
Repair faulty
harness and
verify repair
Go to Step 10
Step
Action
Value(s)
Yes
No
E-60(J1)
E-6
9
2
No.1 Cylinder
E-60(J1)
E-7
22
2
No.2 Cylinder
E-60(J1)
E-8
8
2
No.3 Cylinder
E-60(J1)
E-9
11
2
No.4 Cylinder
ENGINE DRIVEABILITY AND EMISSIONS
6E–173
10
Using the DVM and check the injector signal circuit.
1. Ignition “On”, engine “Off”.
2. Disconnect the injector connector for the affected
cylinder.
3. Check the circuit for short to voltage circuit.
Was the DVM indicated voltage?
—
Repair faulty
harness and
verify repair
Go to Step 12
11
Replace the injector for the affected cylinder.
Was the problem solved?
—
Verify repair
Go to Step 12
12
Is the ECM programmed with the latest software
release?
If not, download the latest software to the ECM using
the “SPS (Service Programming System)”.
Was the problem solved?
—
Verify repair
Go to Step 13
13
Replace the ECM.
Is the action complete?
IMPORTANT: The replacement ECM must be
programmed. Refer to section of the Service
Programming System (SPS) in this manual.
Following ECM programming, the immobilizer system
(if equipped) must be linked to the ECM. Refer to
section 11 “Immobilizer System-ECM replacement” for
the ECM/Immobilizer linking procedure.
—
Verify repair
—
Step
Action
Value(s)
Yes
No
V
2
E-6
No.1 Cylinder
V
2
E-7
No.2 Cylinder
V
2
E-8
No.3 Cylinder
V
2
E-9
No.4 Cylinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст