2007 ISUZU KB P190 battery location

6A-4 ENGINE MECHANICAL (C24SE)
GENERAL DESCRIPTION

Engine Cleanliness And Care
An automobile engine is a combination of many machined, honed, polished and lapped surfaces with tolerances
that are measured in the thousandths of a millimeter (ten thousandths of an inch). Accordingly, when any internal
engine parts are serviced, care and cleanliness are important. Throughout this section, it should be understood that
proper cleaning and protection of machined surfaces and friction areas is part of the repair procedure. This is
considered standard shop practice even if not specifically stated.
z A liberal coating of engine oil should be applied to all friction areas during assembly to protect and lubricate
the surfaces on initial operation.
z W henever valve train components, pistons, piston rings, connecting rods, rod bearings, and crankshaft journal
bearings are removed for service, they should be retained in order.
z
At the time of installation, they should be installed in the same locations and with the same mating surfaced as
when removed.
z Battery cables should be disconnected before any major work is performed on the engine. Failure to
disconnect cables may result in damage to wire harness or other electrical parts.
z The four cylinders of this engine are identified by numbers; cylinders 1, 2, 3 and 4, as counted from crankshaft
pulley.

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ISUZU KB P190 2007

6A-12 ENGINE MECHANICAL (C24SE)
Engine - General C24SE
Fuel system Electronically controlled Multi Port Fuel Injection System
Fuel pump type Electric
Fuel pressure kg/cm2 (psi/Pa) 3.4 (48.4/334)
Fuel filter type Cartridge paper element
Air cleaner type Dry paper element
Battery Type/V-Ax No. of units 34B19L/50D20L
Alternator
Capacity V-A(W ) 12-90 (1080), 12-100 (1200)
Starter
Output V-kW 1.4
Exhaust system CO Adjustment (1) Applicable to Open Loop System (Not equipped H2OS)
(2) Not applicable to Closed Loop System (Equipped H2OS)
Compression Ratio (with Tolerance) 9.6:1±0.25
Cylinder Head Material Aluminum Alloy (gravity cast)
Cylinder Block Material Cast Iron
No. of Mounting Points (including trans.) 3
Engine Installation Angles
-Longitudinal 4
° 60'
-Lateral 7° 50' (towards exhaust side)
Overall Dimensions (L ×
××
×
W ×
××
×
H):
- TF (2.4Litre/2W D)610×564 ×708mm
- TF (2.4Litre/4W D) 610×564 ×746mm
Engine Weight
Engine W eight
- TF (2.4Liter/Man) 140kg
Camshaft Type
SOHC
No. of Valves per Cylinder
- Inlet1
- Exhaust
1
Spark Plug Location Side
Port Arrangement Cross Flow
W orking Principle Spark Ignition 4-stroke


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ISUZU KB P190 2007

ENGINE FUEL (C24SE) 6C-3


W hen working on the fuel system, there are several things to
keep in mind:
•
Any time the fuel system is being worked on, disconnect the
negative battery cable except for those tests where batter
y
voltage is required.
•
Always keep a dry chemical (Class B) fire extinguisher near
the work area.
• Replace all pipes with the same pipe and fittings that were
removed.
• Clean and inspect "O" rings. Replace if required.
•
Always relieve the line pressure before servicing any fuel
system components.
• Do not attempt repairs on the fuel system until you have
read the instructions and checked the pictures relating to
that repair.
• Adhere to all Notices and Cautions.
All gasoline engines are designed to use only unleaded
gasoline. Unleaded gasoline must be used for proper emission
control system operation.
Its use will also minimize spark plug fouling and extend engine
oil life. Using leaded gasoline can damage the emission control
system and could result in loss of emission warranty coverage.
All cars are equipped with an Evaporative Emission Control
System. The purpose of the system is to minimize the escape
of fuel vapors to the atmosphere.



Service Precaution
CAUTION:
Always use the correct fastener in the proper location.
When you replace a fastener, use ONLY the exact part
number for that application. ISUZU will call out those
fasteners that require a replacement after removal. ISUZU
will also call out the fasteners that require thread lockers
or thread sealant. UNLESS OTHERWISE SPECIFIED, do
not use supplemental coatings (Paints, greases, or othe
r
corrosion inhibitors) on threaded fasteners or fastene
r
joint interfaces. Generally, such coatings adversely affect
the fastener torque and the joint clamping force, and may
damage the fastener. When you install fasteners, use the
correct tightening sequence and specifications. Following
these instructions can help you avoid damage to parts
and systems.


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ISUZU KB P190 2007

6D1-2 ENGINE ELECTRICAL

Battery
General Description
There are six battery fluid caps on top of the battery.
These are covered by a paper label.
The battery is completely sealed except for the six small vent
holes on the side. These vent holes permit the escape of small
amounts of gas generated by the battery.
This type of battery has the following advantages over
conventional batteries:
1. There is no need to add water during the entire service life
of the battery.
2. The battery protects itself against overcharging.
The battery will refuse to accept an extensive charge.
(A conventional battery will accept an excessive charge, resulting in gassing and loss of battery fluid.)
3. The battery is much less vulnerable to self discharge than a conventional type battery.



Service Precaution
CAUTION:
Always use the correct fastener in the proper location.
When you replace a fastener, use ONLY the exact part
number for that application. ISUZU will call out those
fasteners that require a replacement after removal. ISUZU
will also call out the fasteners that require thread lockers
or thread sealant. UNLESS OTHERWISE SPECIFIED, do
not use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or fastener
joint interfaces. Generally, such coatings adversely affect
the fastener torque and the joint clamping force, and may
damage the fastener. When you install fasteners, use the
correct tightening sequence and specifications. Following
these instructions can help you avoid damage to parts
and systems.


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ISUZU KB P190 2007

6D2-2 IGNITION SYSTEM



General Description
Ignition is done by the Ignition Module that fires.
Since the cylinder on exhaust stroke requires less energy to
fire its spark plug, energy from the ignition coils can be utilized
to fire the mating cylinder on compression stroke.
A notch in the timing disc on the crankshaft activates the crank
angle sensor which then sends information such as firing order
and starting timing of ignition coil to the ECM.
By receiving signals such as crank position, engine speed,
water temperature and Manifold Absolute Pressure (MAP), the
ECM controls the ignition timing.




Service Precaution
CAUTION:
Always use the correct fastener in the proper location.
When you replace a fastener, use ONLY the exact part
number for that application. ISUZU will call out those
fasteners that require a replacement after removal. ISUZU
will also call out the fasteners that require thread lockers
or thread sealant. UNLESS OTHERWISE SPECIFIED, do
not use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or fastener
joint interfaces. Generally, such coatings adversely affect
the fastener torque and the joint clamping force, and may
damage the fastener. When you install fasteners, use the
correct tightening sequence and specifications. Following
these instructions can help you avoid damage to parts
and systems.



Diagnosis
Refer to Section Drivability and Emissions for the diagnosis to
electronic ignition system (El system).





Ignition Coil
Removal
1. Disconnect battery ground cable.
2. Disconnect the Ignition coil connector.
3. Remove the ignition coil.



Installation
1. Install the ignition coil.
Connect ignition coil connector and ignition coil, then tighten bolt to the specified torque.
Torque: 20 N ⋅m (2.0 kgf ⋅m)
2. Connect battery ground cable.


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ISUZU KB P190 2007

6D3-2 STARTING AND CHARGING SYSTEM


Starting System
General Description
Cranking Circuit
The cranking system consists of a battery, starter, starter
switch, starter relay, etc. These main components are
connected.
Starter
The cranking system employs a magnetic type reduction
starter in which the motor shaft is also used as a pinion shaft.
W hen the starter switch is turned on, the contacts of magnetic
switch are closed, and the armature rotates. At the same time,
the plunger is attracted, and the pinion is pushed forward by
the shift lever to mesh with the ring gear.
Then, the ring gear runs to start the engine. W hen the engine
starts and the starter switch is turned off, the plunger returns,
the pinion is disengaged from the ring gear, and the armature
stops rotation. W hen the engine speed is higher than the
pinion, the pinion idles, so that the armature is not driven.




Service Precaution
CAUTION:
Always use the correct fastener in the proper location.
When you replace a fastener, use ONLY the exact part
number for that application. ISUZU will call out those
fasteners that require a replacement after removal. ISUZU
will also call out the fasteners that require thread lockers
or thread sealant. UNLESS OTHERWISE SPECIFIED, do
not use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or fastener
joint interfaces. Generally, such coatings adversely affect
the fastener torque and the joint clamping force, and may
damage the fastener. When you install fasteners, use the
correct tightening sequence and specifications. Following
these instructions can help you avoid damage to parts
and systems.

Diagnosis
Condition Possible cause Correction
Starter does not run Charging failure Repair charging system
Battery Failure Replace Battery
Terminal connection failure Repair or replace terminal connector
and/or wiring harness
Starter switch failure Repair or replace starter switch
Starter failure Repair or replace starter


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ISUZU KB P190 2007

SECTION 6E
TABLE OF CONTENTS
C24SE ENGINE DRIVEABILITY AND EMISSIONS
ABBREVIATIONS CHARTS ......................... 6E-6
ECM Circuit Diagram (1/2) ............................ 6E-11
ECM Circuit Diagram (2/2) ............................ 6E-12
GROUND POINT CHART - LHD G.EXP (1/4) 6E-13
GROUND POINT CHART - RHD G.EXP (1/4) 6E-17
LOCATION ................................................... 6E-21
CABLE HARNESS & CONNECTOR LOCATION .............................................. 6E-23
CABLE HARNESS & CONNECTOR LOCATION - LHD ................................... 6E-24
CABLE HARNESS & CONNECTOR LOCATION - RHD ................................... 6E-25
CONNECTOR LIST ...................................... 6E-28
RELAY AND FUSE ....................................... 6E-30
RELAY AND FUSE BOX LOCATION (LHD & RHD) ........................................... 6E-30
FUSE AND RELAY LOCATION (LHD & RHD) 6E-32
ECM WIRING DIAGRAM (1/9) ..................... 6E-33
ECM WIRING DIAGRAM (2/9) ..................... 6E-34
ECM WIRING DIAGRAM (3/9) ..................... 6E-35
ECM WIRING DIAGRAM (4/9) ..................... 6E-36
ECM WIRING DIAGRAM (5/9) ..................... 6E-37
ECM WIRING DIAGRAM (6/9) ..................... 6E-38
ECM WIRING DIAGRAM (7/9) ..................... 6E-39
ECM WIRING DIAGRAM (8/9) ..................... 6E-40
ECM WIRING DIAGRAM (9/9) ..................... 6E-41
ECM CONNECTOR PIN ASSIGNMENT & OUTPUT SIGNAL .................................... 6E-42
GENERAL DESCRIPTION FOR ECM AND SENSORS ............................................... 6E-48
Engine Control Module (ECM) ................... 6E-48
Manifold Absolute Pressure (MAP) Sensor 6E-48
Throttle Position Sensor (TPS) .................. 6E-49
Idle Air Control (IAC) Valve ....................... 6E-49
Crankshaft Position (CKP) Sensor ............ 6E-50
Knock Sensor (KS) .................................... 6E-50
Engine Coolant Temperature (ECT) Sensor 6E-50
Intake Air Temperature (IAT) Sensor ........ 6E-51
Vehicle Speed Sensor (VSS) .................... 6E-51
Heated Oxygen (O
2) Sensor ..................... 6E-51
GENERAL DESCRIPTION FOR FUEL METERING .............................................. 6E-52 Battery Voltage Correction Mode ............... 6E-52
Clear Flood Mode ...................................... 6E-52
Deceleration Fuel Cutoff (DFCO) Mode .... 6E-52
Engine Speed/ Vehicle Speed/ Fuel Disable Mode ........................................................ 6E-52
Acceleration Mode ..................................... 6E-52
Fuel Cutoff Mode ....................................... 6E-52
Starting Mode ............................................ 6E-52
Run Mode .................................................. 6E-52
Fuel Metering System Components .......... 6E-53
Fuel Injector ............................................... 6E-53
Fuel Pressure Regulator ............................ 6E-53
Fuel Rail ..................................................... 6E-53
Fuel Pump Electrical Circuit ....................... 6E-53
Thottle Body Unit ....................................... 6E-53
GENERAL DESCRIPTION FOR ELECTRIC IGNITION SYSTEM ................................. 6E-54
Spark Plug ................................................. 6E-54
GENERAL DESCRIPTION FOR EVAPORATIVE EMISSION SYSTEM ............................... 6E-57
EVAP Emission Control System Purpose .. 6E-57
EVAP Emission Control System Operation 6E-57
System Fault Detection .............................. 6E-57
POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM .................................................. 6E-59
Crankcase Ventilation System Purpose .... 6E-59
A/C CLUTCH DIAGNOSIS ........................ 6E-60
A/C Clutch Circuit Operation ...................... 6E-60
A/C Clutch Circuit Purpose ........................ 6E-60
A/C Request Signal ................................... 6E-60
ISUZU STRATEGY BASED DIAGNOSTICS 6E-61
Overview .................................................... 6E-61
STRATEGY BASED DIAGNOSTICS CHART 6E-61 Diagnostic Thought Process ...................... 6E-62
1. Verify the Complaint .............................. 6E-62
2. Perform Preliminary Checks .................. 6E-62
3. Check Bulletins and Troubleshooting Hints 6E-63
4. Perform Service Manual Diagnostic Checks 6E-63
5a and 5b. Perform Service Manual Diagnostic Procedures .............................................. 6E-63
5c. Technician Self Diagnoses .................. 6E-63
5d. Intermittent Diagnosis .......................... 6E-64
6 E –1
E N GINE DRIV EABILITY AND E M IS SIONS

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6E–120 ENGINE DRIVEABILITY AND EMISSIONS
connectors for backed-out terminals, improper
mating, broken locks, improperly formed or damaged
terminals, and poor terminal-to-wire connection.
• If these codes are also set, it could indicate a problem with the 5 Volt reference circuit.
• Damaged harness - Inspect the wiring harness for damage, short to ground, short to battery positive,
and open circuit. If the harness appears to be OK,
observe the MAP display on the Tech 2 while moving
connectors and wiring harnesses related to the
sensor. A change in the display will indicate the
location of the fault.
Diagnostic Trouble Code (DTC) P0107
Manifold Absolute Pressure Circuit Low Input
Step Action Value(s) Yes No
1 Was the “On-Board Diagnostic (OBD) System Check” performed?
—Go to Step 2Go to
On Board
Diagnostic
(OBD) System Check
2 1. Connect the Tech 2. 2. Review and record the failure information.
3. Select “F0: Read DTC Infor By Priority” in “F0: Diagnostic Trouble Code”.
Is the DTC P0107 stored as “Present Failure”? — Go to Step 3Refer to
Diagnostic Aids and Go to Step
3
3 1. Using the Tech2, ignition “On” and engine “Off”. 2. Select “Clear DTC Information” with the Tech2 andclear the DTC information.
3. Operate the vehicle and monitor the “F5: Failed This Ignition” in “F2: DTC Information”.
Was the DTC P0107 stored in this ignition cycle? — Go to Step 4Refer to
Diagnostic Aids and Go to Step
4
4 Check for poor/faulty connection at the MAP sensor or ECM connector. If a poor/faulty connection is found,
repair as necessary.
Was the problem found?
— Verify repair Go to Step 5
5 Visually check the MAP. Was the problem found? — Go to Step 9 Go to Step 6
6 Using the DVM and check the MAP sensor power supply circuit.
1. Ignition “On”, engine “Off”.
2. Disconnect the MAP sensor connector.
3. Check the circuit for open or short to ground circuit.
Was the DVM indicated specified value?
Approximately 5.0V Go to Step 8Go to Step 7
16
31 24E85
E60(J1)
V
E85
3

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