2007 ISUZU KB P190 Harness

6E-350 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
• The hardware key is plugged into the computerport.
• Vehicle system voltage: - There are no charging system concerns. Allcharging system concerns must be repaired
before programming the ECM.
- The battery voltage is greater than 12 volts but less than 16 volts. The battery must be fully
charged before programming the ECM.
- A battery charger is NOT connected to the vehicles battery. Incorrect system voltage or
voltage fluctuations from a battery charger may
cause programming failure or ECM damage.
- Turn OFF or disable any system that may put a load on the vehicles battery. Turn OFF or
disable systems such as:
◊ Heating, ventilation, and air conditioning
(HVAC) systems
◊ Headlights
◊ Room lights
◊ Accessory equipment
• The ignition switch is in the proper position. The scan tool prompts you to turn ON the ignition, with
the engine OFF. DO NOT change the position of
the ignition switch during the programming
procedure unless instructed to do so.
• All tool connections are secure: - The RS-232 cable
- The connection at the DLC
- The voltage supply circuits
• DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or
ECM damage may occur.
• If you are performing the Pass-Thru programming procedure using a notebook computer without the
power cord, ensure that the internal battery is fully
charged.
Service Programming System (SPS)
(Remote Procedure)
Notice: Some module will not accept SPS remote
procedure using 10MB PCMCIA card. In such case,
use 32MB PCMCIA card or SPS pass-thru procedure.
The Remote SPS method is a three-step process that
involves the following procedures:
1. Connecting the scan tool to the vehicle and obtaining the information from the ECM.
2. Connecting the scan tool to the terminal and downloading a new calibration file from the
terminal into the scan tool memory.
3. Reconnecting the scan tool to the vehicle and uploading the new calibration file into the ECM. Performing the Remote Procedure
1. Connect a scan tool to the vehicle and obtain the ECM information using the following procedure:
Notice: Ensure the ECM is installed in the vehicle and
the battery is fully charged before programming.
a. Install a scan tool.
b. Turn ON the ignition, with the engine OFF.
c. Select Service Programming System (SPS) > Request Info.
d. If there is already stored in the scan tool, the existing data is displayed on the screen. The
scan tool asks user to keep existing data "Keep
Data" or "Continue" to request new vehicle
information from the ECM. If there is no data in
the scan tool, it will immediately start vehicle
identification.
e. Select the vehicle description by following the on-screen instructions based on stamped VIN
or affixed VIN plate on the vehicle.
f. During obtaining information, the scan tool is receiving information from all modules at the
same time. But only ECM information is
displayed on the screen.
g. Turn OFF all accessories and press "Okay".
h. Verify that the correct VIN is displayed on the scan tool. If the VIN is incorrect or no VIN,
record the correct VIN.
2. Turn OFF the ignition.
3. Turn OFF the scan tool and disconnect from the vehicle.
4. Transfer the data from the terminal to the scan tool using the following procedure:
Notice: The TIS supports service programming with
the Tech 2 scan tool only.
a. Connect the scan tool to the terminal.
b. Launch the TIS application.
c. Select the Service Programming System at the main screen.
d. Highlight the following information on the Select Diagnostic Tool and Programming Process
screen, then click "Next".
• Select Diagnostic Tool - Tech 2
• Select Programming Process - Identify whether an existing ECM is being
reprogrammed or an ECM is being replaced
with a new one
• Select ECU Location - Vehicle
e. Verify the connections on the Preparing for Communication screen, then click "Next".
f. Verify the VIN on the Validate Vehicle Identification Number (VIN) screen, then click
"Next".

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-353
Description and Operation
Engine Control Module (ECM) Description
Engine Control Module (ECM) Service Precautions
Important:The symbol ! warns you of an electric shock
hazard. To avoid shock and possible serious injury, DO NOT
touch the terminals. When disconnecting the harness
connectors, always turn OFF the ignition switch or disconnect
the battery cable.
The engine control module (ECM) is designed to
withstand normal current draws associated with vehicle
operation. Avoid overloading any circuit. When testing
for opens and shorts, do not ground or apply voltage to
any of the ECM circuits unless instructed to do so. In
some cases, these circuits should only be tested using
a DMM. The ECM should remain connected to the
ECM harness.
The ECM is located inside of engine compartment via
mounting bracket and is behind air cleaner case. The
ECM mainly controls the following. • The fuel system control
• The exhaust gas recirculation (EGR) system control
• The preheating (glow) system control
• The A/C compressor control
• The immobilizer control
• On-board diagnostics for engine control
The ECM constantly observes the information from
various sensors. The ECM controls the systems that
affect vehicle performance. The ECM performs the
diagnostic function of the system. The ECM can
recognize operational problems, alert the driver
through the malfunction indicator lamp (MIL), and store
diagnostic trouble codes (DTCs). DTCs identify the
system faults to aid the technician in making repairs.
RTW56ESH000201
RTW56ESH004401

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ISUZU KB P190 2007

6E-368 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Special Tools and Equipment
Special Tools and Equipment
IllustrationTool Number/ Description
5-8840-2835-0 (J-35616-C) Connector Test Adapter Kit (With Test Lamp)
5-8840-0285-0 (J-39200) Digital Multimeter
Te c h 2 K i t
CAN-di Module Breaker Box
Adapter Harness
5884028350
5884002850
AAW0Z0SH015701
1851110030
A
B C
ABC
5-8840-0279-0 (J-23738-A) Vacuum Pump
Illustration Tool Number/ Description

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ISUZU KB P190 2007

6H-2 ENGINE SPEED CONTROL SYSTEM (4JK1/4JJ1)
Accelerator Pedal Position (APP) Sensor
Removal
1. Turn OFF the ignition.
2. Disconnect the APP sensor harness connector.
3. Loosen the accelerator pedal assembly nuts (3).
4. Remove the accelerator pedal assembly.



RTW 56ESH000301
5. Remove the APP sensor (1) from accelerator
pedal bracket (2).

Installation
1. Install the APP sensor (1) in accelerator pedal
bracket (2).
2. Install the accelerator pedal assembly.
3. Tighten the accelerator pedal assembly nuts (3).
4. Connect the APP sensor harness connector.


How to adjust for APP Sensor
1. Install the Tech2.
2. Turn ON the ignition.
3. Observe the APP sensor parameter.
Check the unique functionality of each sensor as shown in the table below.
APP
Sensor Pedal
Position Pedal
Position as
Observed on the Tech2 (%) Voltage as
Observed on the Tech2 (volt)
1 Pedal at
reset 0 0.1-1.2
1 Pedal at full
travel 100 3.8-4.8
2 Pedal at
reset 0 3.8-4.8
2 Pedal at
full travel 100 0.2-1.2
3 Pedal at
reset 0 3.8-4.8
3 Pedal at full
travel 100 1.2-2.2
4. If the problem was found, adjust as necessary.





101RY00011



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6-2 ENGINE DIAGNOSIS (C24SE)
Engine Diagnosis
Hard Starting
1.Starting Motor Does Not Turn Over
Trouble Shooting Procedure
Turn on headlights and starter switch.
Condition Possible cause Correction
Headlights go out or dim
considerably Battery run down or under
charged Recharge or replace battery

Terminals poorly connected Clean battery posts and terminals
and connect properly
Starting motor coil circuit shorted Overhaul or replace
Starting motor defective Overhaul or replace
2.Ignition Trouble - Starting Motor Turns Over But Engine Does Not Start
Spark Test Disconnect a high tension cable from any spark plug.
Connect the spark plug tester (use commercially
available tool), crank the engine, and check if a spark is
generated in the spark plug tester. Before cranking the
engine, make sure that the spark plug tester is properly
grounded. To avoid electrical shock, do not touch the
high tension cable while the engine is running.

Condition Possible cause Correction
Spark jumps across gap Spark plug defective Clean, adjust spark gap or replace
Spark plug wire in correct Connect properly or replace
Ignition timing incorrect Refer to Ignition System
Fuel not reaching fuel injector(s)
or engine Refer to item 3 (Trouble in fuel
system)
Valve timing incorrect Adjust
Engine lacks compression Refer to item 4 (Engine lacks
compression)
No sparking takes place Ignition coil disconnected or
broken Connect properly or replace

Electronic Ignition System with
module Replace

Poor connections in engine
harness Correct

Engine Control Module cable
disconnected or defective Correct or replace


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ISUZU KB P190 2007

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

ENGINE MECHANICAL (C24SE) 6A-71
Installation

(2.4L)
1. Install the ECM to the ECM bracket on engine.
2. Tighten the four screws to the bracket.
3. Connect the connector.









ECT
Removal
1. Remove wiring harness plug and coolant temperature sensor.

Tighten (Torque)
Temperature sensor to intake pipe - 10 N ⋅m (1.0 kgf ⋅m)
W iring harness plug to temperature sensor

Inspection
Coolant level








Idle Air Control (IAC) Valve
Removal
1. Remove wiring harness plug, hose clamps and idle speed adjuster.

Installation
1. Install idle speed adjuster, hose clamps and wiring harness plug.







Ignition Coil
Removal
1. Remove 2 bolts, plug and ignition coil.

Installation
1. Install ignition coil, plug and bolts.


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ISUZU KB P190 2007

6A-74 ENGINE MECHANICAL (C24SE)




Oxygen Sensor (If applicable)
Removal
1. Remove wiring harness plug.
2. Remove oxygen sensor from the front exhaust pipe.


Tighten (Torque)
Oxygen sensor in exhaust pipe - 30 N ⋅m (3.1 kgf ⋅m)









Throttle Valve Position Sensor
Removal
1. Remove wiring harness connector.
2. Remove throttle valve position sensor.

Installation
1. Install throttle valve position sensor.
2. Install wiring harness connector.


Accelerator Pedal and Cable
Removal
1. Remove pad stopper from pedal stop bolt.





Installation
1. Install pad stopper.

Inspection
Ensure that accelerator pedal is fully in idle position and
accelerator level at engine is in closed position.

Pull outer sleeve of accelerator cable towards pedal and check
that clip on sleeve is in slot nearest to grommet.

Reposition clip if necessary, and check that full throttle and idle
positions are obtained at engine lever.


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ISUZU KB P190 2007