2007 ISUZU KB P190 Workshop Repair Manual

navigation system child lock change wheel automatic transmission fluid coolant level CD player

Page 1681 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6E-64 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
61. Turn OFF the ignition.
2. Disconnect the FRP sensor harness connector.
3. Inspect for an intermittent, for poor connections and corrosion at the harness

6E-64 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
61. Turn OFF the ignition.
2. Disconnect the FRP sensor harness connector.
3. Inspect for an intermittent, for poor connections and corrosion at the harness
connector of the FRP sensor (pins 1, 2 and 3
of E-48).
4. Disconnect the ECM harness connector.
5. Inspect for an intermittent, for poor connections and corrosion at the harness
connector of the ECM (pins 47, 48, 68 and 69
of E-90).
6. Test for high resistance on each circuit.
7. Repair the connection(s) or circuit(s) as necessary.
Did you find and correct the condition? —
Go to Step 11 Go to Step 7
7 Replace the FRP sensor. Refer to FRP Sensor
Replacement.
Did you complete the replacement? —
Go to Step 11
—
8Repair the short to ground between the ECM (pins
50 and 70 of E-90) and the FRP regulator (pin 2 of
E-50).
Did you compete the repair? —
Go to Step 11
—
91. Check for normal readings at key up for the
following sensor inputs: Use the Scan Tool
Data List or a known good vehicle to
determine nominal values.
• Engine Coolant Temperature Sensor
• Barometric Pressure (BARO) Sensor
• Boost Pressure Sensor
• Intake Throttle Position Sensor
2. Repair the circuit(s) or replace the sensor as necessary.
Did you find and correct the condition? —
Go to Step 11 Go to Step 10
10 1. Other possible causes for the no-start
condition:
• Engine mechanical timing
• Heavily restricted intake or exhaust plugged solid.
• Poor engine compression.
• Water or gasoline contamination in fuel.
2. Repair as necessary.
Did you find and correct the condition? —
Go to Step 11
—
111. Reconnect all previously disconnected
harness connector(s).
2. Turn OFF the ignition for 30 seconds.
3. Attempt to start the engine.
Does the engine start and continue to run? —
Go to Step 12 Go to Step 2
12 Observe the DTC Information with a scan tool.
Are there any DTCs that you have not diagnosed? —
Go to DTC List System OK
Step
Action Value(s)Yes No

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 1682 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-65
Circuit/ System Testing Engine Cranks but Does Not Run (2 of 2)
StepAction Value(s)Yes No
1 1. Remove the engine cover.
2. Perform the Injector Force Drive w

Page 1683 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6E-66 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
4Notice:
Make sure the in-tank fuel pump operation
before performing the following procedures. Refer
to In-tank Fuel Pump System Check in this section.
1.

6E-66 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
4Notice:
Make sure the in-tank fuel pump operation
before performing the following procedures. Refer
to In-tank Fuel Pump System Check in this section.
1. Turn OFF the ignition.
2. Disconnect the fuel hose from the fuel supply pump suction side. In order to measure the
discharged fuel amount, put the hose into a
bottle or a container with a scale. (The inlet of
a bottle or a container must be larger than the
diameter of hose.)
3. Turn ON the ignition for 20 seconds, with the engine OFF.
4. Turn OFF the ignition for 10 seconds.
5. Perform 3 and 4 three times. The accumulated fuel of three ignition cycles must be more than
300 cc. (Normal amount is more than 100 cc
per one ignition cycle.)
Notice: If there is a leak or a restriction on the
suction side, the fuel from the hose will not flow out
sufficiently that is most likely caused by fuel
leakage, clogged fuel filter, kinked or crushed fuel
hose or pipe. Also inside the fuel tank for any
foreign materials may be getting drawn into the fuel
line pickup.
6. Repair fuel system leaking or restrictions as necessary.
Did you find and correct the condition? —
Go to Step 12 Go to Step 5
5 1. Turn OFF the ignition.
2. Remove the Fuel Pump (10A) fuse from the engine room fuse block in order to disable in-
tank fuel pump.
3. Disconnect each fuel injector harness connector from all fuel injectors in order to
disable injection.
4. Remove the rubber fuel hose from the leak-off pipe. Then, remove the leak-off pipe assembly
from the engine that is jointed to the fuel
supply pump and the pressure limiter valve.
Use a pan to catch the fuel from the removed
fuel line.
5. Crank over the engine while observing the fuel leak from the pressure limiter valve.
Important: Safety glasses must be worm. Fuel
may splash if the pressure limiter valve is faulty.
Is there fuel leak from the pressure limiter valve? —
Go to Step 11 Go to Step 6
Step
Action Value(s)Yes No

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 1684 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-67
61. Remove the rubber hoses from the leak-off
pipes that are connected to each fuel injector.
2. Crank over the engine while observing the fuel leak from the

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-67
61. Remove the rubber hoses from the leak-off
pipes that are connected to each fuel injector.
2. Crank over the engine while observing the fuel leak from the leak-off pipe of each fuel injector
(very small leak is normal).
Important: Safety glasses must be worm. Fuel
may splash if the fuel injector is faulty.
Important: Replacement fuel injector must be
programmed.
3. Replace the fuel injector(s) that return fuel is excessive. Refer to Fuel Injector
Replacement/ Fuel Injector ID Code Data
Programming.
4. Retest after replacement of the fuel injector(s).
Did you find and correct the condition? —
Go to Step 12 Go to Step 7
7 1. Remove each glow plug from the cylinder
head.
2. Inspect for fuel leakage into the combustion chamber.
Is there a cylinder that fuel leakage into the
combustion chamber? —
Go to Step 9 Go to Step 10
8 Important
: Replacement fuel injector must be
programmed.
Replace the appropriate fuel injector that does not
create a clicking noise (solenoid operating noise),
contains an interrupted noise or abnormal noise at
Step 1. Refer to Fuel Injector Replacement/ Fuel
Injector ID Code Data Programming.
Did you complete the replacement? —
Go to Step 12
—
9Important
: Replacement fuel injector must be
programmed.
Replace the appropriate fuel injector that was
leaking fuel found at Step 7 and inspect the engine
mechanical for any damage or poor engine
compression. Refer to Fuel Injector Replacement/
Fuel Injector ID Code Data Programming and
engine mechanical section.
Did you complete the replacement? —
Go to Step 12
—
10Important
: The fuel supply pump must be timed to
the engine and adjustment value must be learned
to the ECM.
Notice: Always replace the fuel filter cartridge
when a fuel supply pump is replaced.
Replace the fuel supply pump and fuel filter
cartridge. Refer to Fuel Supply Pump Replacement
and Fuel Filter Cartridge Replacement.
Did you complete the replacement? —
Go to Step 12
—
11Replace the pressure limiter valve. Refer to Fuel
Rail Replacement.
Did you complete the replacement? —
Go to Step 12
—
Step Action Value(s)Yes No

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 1685 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6E-68 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
121. Reconnect all previously disconnected
harness connector(s).
2. Turn OFF the ignition for 30 seconds.
3. Attempt to start the engine.
Does the engine st

Page 1686 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-69
DTC P0016 (Flash Code 16)
Circuit Description
The crankshaft position (CKP) sensor is located on the
left-hand of the cylinder block rear and it is behind t

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-69
DTC P0016 (Flash Code 16)
Circuit Description
The crankshaft position (CKP) sensor is located on the
left-hand of the cylinder block rear and it is behind the
starter motor. The sensor rotor is fixed on the
crankshaft. There are 56 notches spaced 6 ° apart and
a 30 ° section that is open span. This open span portion
allows for the detection of top dead center (TDC).
The camshaft position (CMP) sensor is installed on the
timing chain sprocket cover at the front of the camshaft
idle gear. The CMP sensor detects total of five
projections per one engine cycle (four projections
arranged equally every 90 ° and one reference
projection on the timing chain sprocket surface).
Detecting the open span portion from the CKP sensor
and one reference projection from the CMP sensor, the
ECM determines cylinder #1 compression TDC to
ensure they correlate with each other. If the ECM
detects both signals are out of synchronization, this
DTC will set.
Condition for Running the DTC • DTCs P0335, P0336, P0340 and P0341 are not set.
• The battery voltage is more than 9 volts.
• The ignition switch is ON.
• The CKP sensor signal pulse is detected.
• The CMP sensor signal pulse is detected. Condition for Setting the DTC
• The ECM detects that the CKP sensor signals and CMP sensor signals are out of synchronization
during engine rotations.
Action Taken When the DTC Sets • The ECM illuminates the SVS lamp when the diagnostic runs and fails. Refer to DTC Type
Definitions for Action Taken When the DTC Sets -
Type C. (Euro 4 Specification)
• The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for
Action Taken When the DTC Sets - Type A.
(Except Euro 4 Specification)
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the SVS Lamp/ DTC - Type C. (Euro 4
Specification)
• Refer to DTC Type Definitions for Condition for Clearing the MIL/ DTC - Type A. (Except Euro 4
Specification)
Diagnostic Aids • This DTC is caused by an incorrect mechanical timing condition, which is most likely caused by
wrong installation of timing gear or chain.
• The engine reverse rotation may set this DTC.
Circuit/ System Testing DTC P0016
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Start the engine. If the engine does not start, crank over the engine for 10 seconds.
4. Monitor the DTC Information with a scan tool.
Is DTC P0335, P0336, P0340 or P0341 also set? —
Go to Applicable DTC Go to Step 3

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 1687 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6E-70 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
31. Inspect the crankshaft position (CKP) sensor
and the camshaft position (CMP) sensor for
the following conditions:
• Physical damage of sensor
• Loos

Page 1688 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-71
DTC P0045 (Flash Code 33)
Circuit Description
The position of the turbocharger nozzle is controlled by
the ECM. The ECM utilizes a turbocharger nozzle
contr

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-71
DTC P0045 (Flash Code 33)
Circuit Description
The position of the turbocharger nozzle is controlled by
the ECM. The ECM utilizes a turbocharger nozzle
control solenoid valve and a boost pressure sensor to
control the turbocharger nozzles. When the engine is
not under load, the turbocharger nozzles are in an open
position, or no boost condition. When the engine is
under load, the ECM commands the control solenoid
valve to close the turbocharger nozzles, thus
increasing the boost. The ECM will vary the boost
dependant upon the load requirements of the engine.
The ECM uses a pulse width modulation (PWM) on the
control circuit to open and control the solenoid valve. If
the ECM detects an open circuit or short circuit on the
solenoid valve circuit, this DTC will set.
Condition for Running the DTC • The ignition switch is ON.
Condition for Setting the DTC
Either of following condition is met: • The ECM detects a low voltage condition on the turbocharger nozzle control solenoid circuit when
the solenoid is commanded OFF.
• The ECM detects a high voltage condition on the turbocharger nozzle control solenoid circuit when
the solenoid is commanded ON. Action Taken When the DTC Sets
• The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for
Action Taken When the DTC Sets - Type A.
• The ECM limits fuel injection quantity.
• The ECM inhibits pilot injection.
• The ECM inhibits cruise control.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the MIL/ DTC - Type A.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Test description
The number below refers to the step number on the
Circuit/ System Testing.
4. If the solenoid control circuit between the ECM and
the solenoid is normal, the test lamp changes from
Bright to Dim when commanded from Increase to
Decrease.
Schematic Reference: Vacuum Hose Routing
Diagram and Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0045
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Start the engine.
4. Monitor the DTC Information with a scan tool.
Does the DTC fail this ignition? —
Go to Step 3 Go to Diagnostic
Aids
3 1. Turn OFF the ignition.
2. Disconnect the turbocharger nozzle control solenoid valve harness connector.
3. Connect a test lamp between the ignition voltage feed circuit (pin 2 of E-106) and a
known good ground.
4. Turn ON the ignition, with the engine OFF.
Does the test lamp illuminate? —
Go to Step 4 Go to Step 5

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Load next 8 pages

Page: < prev 1-10 ... 1649-1656 1657-1664 1665-1672 1673-1680 1681-1688 1689-1696 1697-1704 1705-1712 1713-1720 ... 6024 next >

air filter fuel pressure brake pads brake light fuse box location radio antenna