2007 ISUZU KB P190 diagnostic menu

ENGINE DRIVEABILITY AND EMISSIONS 6E–85
2. Demand of Data1. Connect Tech-2 to the vehicle. When activated by turning on the power of Tech-2, push the “Enter”
switch.
2. Turn on the ignition switch (without starting the engine)
3. In the main menu of Diagnostic Tester, push “F1: Service Programming System (SPS)”.
4. Push “F0: Request Info” of Tech-2. 5. Where vehicle data has been already saved in Tech
2, the existing data come on display. In this
instance, as Tech-2 starts asking whether to keep
the data or to continue obtaining anew data from the
control unit, choose either of them
6. If you select “continue”, you have to select “Model Year”, “Vehicle Type”.
7. After that. then push button and turn Ignition switch tuned on, off, on following Tech-2 display. Tech-2
will read information from controller after this
procedure.
8. During obtaining information, Tech-2 is receiving information from the control unit ECM and TCM (A/T
only) at the same time. With VIN not being
programmed into the new control unit at the time of
shipment, "obtaining information" is not complete
(because the vehicle model, engine model and
model year are specified from VIN). For the
procedure get additional information on vehicles,
instruction will be provided in dialog form, when
TIS2000 is in operation.
9. Following instructions by Tech-2, push the “Exit” switch of Tech-2, turn off the ignition of the vehicle
and turn off the power of Tech-2, thereby removing
from the vehicle. 3. Data Exchange
1. Connect Tech-2 to P/C, turn on the power and click the “Next” button of P/C.
2. Check VIN of the vehicle and choose “Next”.
3. Select “System Type” for required control unit.
• Engine (Programming for ECM or PCM)
• Transmission (Programming for TCM)
4. When a lack of data is asked from among the following menu, enter accordingly.
Select following Menu
• Model Year
• Model
• Engine type
• Transmission type
• Destination code (vehicles for general export)*1
• Immobilizer
Etc.
* 1: How to read the destination code
Destination code can be read from ID Plate affixed on
vehicles, while on VIN plate the destination code is
described at the right-hand edge of Body Type line. In
the figure, the destination code can be read as "RR3"
(Australia).

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ISUZU KB P190 2007

ENGINE DRIVEABILITY AND EMISSIONS 6E–219
Diagnostic Trouble Code (DTC) P1626 Immobilizer No Signal
StepAction 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 P1626 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 P1626 stored in this ignition cycle? — Go to Step 4Refer to
Diagnostic Aids and Go to Step
4
4 1. Using the Tech 2, ignition “On” and engine “Off”. 2. Select “Immobilizer” in the system selection menu“Body”.
3. Select “Read DTC Info Ordered By Priority” in the “Diagnositic Trouble Code”.
Was the DTC B0007 stored in this ignition cycle? —Refer to
“Immobilizer Workshop
Manual” & Go to DTC Chart B0007 Go to Step 5
5 Check for poor/faulty connection at the immobilizer control unit connector or ECM connector. If a poor/
faulty connection is found, repair as necessary.
Was the problem found?
— Verify repair Go to Step 6
6 Using the DVM and check the “CHECK ENGINE” lamp circuit.
1. Ignition “Off”, engine “Off”.
2. Disconnect the meter connector and immobilizer control unit connector.
3. Ignition “On”.
4. Check the circuit for short to power supply circuit.
Was the problem found?
—Repair faulty
harness and verify repair Go to Step 7
3223 78
C-56(J2) B-68
VV
B-24
B-68
17
7

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ISUZU KB P190 2007

ENGINE DRIVEABILITY AND EMISSIONS 6E–223
Diagnostic Trouble Code (DTC) P1631 Immobilizer Wrong Signal
StepAction 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 P1631 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 P1631 stored in this ignition cycle? — Go to Step 4Refer to
Diagnostic Aids and Go to Step
4
4 1. Using the Tech 2, ignition “On” and engine “Off”. 2. Select “Immobilizer” in the system selection menu“Body”.
3. Select “Read DTC Info Ordered By Priority” in the “Diagnositic Trouble Code”.
Was the DTC B0007 stored in this ignition cycle? —Refer to
“Immobilizer Workshop
Manual” & Go to DTC Chart B0007 Go to Step 5
5 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 6
6 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 —

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ISUZU KB P190 2007

ENGINE DRIVEABILITY AND EMISSIONS 6E–225
Diagnostic Trouble Code (DTC) P1648 Wrong Security Code Entered
StepAction 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 P1648 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 P1648 stored in this ignition cycle? — Go to Step 4Refer to
Diagnostic Aids and Go to Step
4
4 1. Using the Tech 2, ignition “On” and engine “Off”. 2. Select “Immobilizer” in the system selection menu“Body”.
3. Select “Read DTC Info Ordered By Priority” in the “Diagnositic Trouble Code”.
Was the DTC B0007 stored in this ignition cycle? —Refer to
“Immobilizer Workshop
Manual” & Go to DTC Chart B0007 Go to Step 5
5 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 6
6 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 —

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ISUZU KB P190 2007

ENGINE DRIVEABILITY AND EMISSIONS 6E–227
Diagnostic Trouble Code (DTC) P1649 Immobilizer Function Not Programmed
StepAction 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 P1649 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 P1649 stored in this ignition cycle? — Go to Step 4Refer to
Diagnostic Aids and Go to Step
4
4 1. Using the Tech 2, ignition “On” and engine “Off”. 2. Select “Immobilizer” in the system selection menu“Body”.
3. Select “Read DTC Info Ordered By Priority” in the “Diagnositic Trouble Code”.
Were the any DTC's B0002 or B0009 stored in this
ignition cycle? —Refer to
“Immobilizer Workshop
Manual” & Go to DTC Chart B0002 or B0009 Go to Step 5
5 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 6
6 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 —

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ISUZU KB P190 2007

Engine Management – V6 – Diagnostics Page 6C1-2–223

8 HFV6 Engine – Tech 2 Functions
8.1 Introduction

Do not use a Tech 2 that displays faulty data;
have the Tech 2 repaired. The use of a faulty
Tech 2 can result in misdiagnosis and the
unnecessary replacement of parts.
From the Main Menu, having selected Diagnostics / 2006 / RA Rodeo / Engine , the Tech 2 functions for the HFV6
engine, include:
F0: Diagnostic Trouble Codes
F1: Data Display
F2: OBD Data
F3: Snapshot
F4: Actuator Test
F5: Additional Functions
F6: Programming
8.2 Tech 2 Functions
F0: Diagnostic Trouble Codes
W hen this test mode is initiated, DTCs stored by the ECM can be displayed or cleared. W hen entered, there are three
additional modes for selection:
F0: Read DTC Information: All DTCs stored in the ECM will be displayed.
F1: Clear Engine & Transmission DTCs: Clears all current DTCs in the ECM and TCM memories.
F2: Freeze Frame/Failure Records: Shows the Freeze Frame information. Freeze Frames are types of snapshots stored in the ECM memory.
F1: Data Display
• Use the Tech 2 Data List under the following conditions:
• The Diagnostic System Check – HFV6 Engine has been completed.
• The On-Board Diagnostics are functioning correctly.
• No DTCs are present.
NOTE
• Tech 2 values from an engine that is
operating correctly may be used for
comparison with the engine you are
diagnosing. The Tech 2 engine data lists
represent typical values that would be seen
on a normal operating engine.
• The Tech 2 Data Definitions list that follows
the Data Lists, is arranged in alphabetical
order and contains a brief description of all of
the engine related parameters that are
available.
The following ‘typical’ Tech 2 values were recorded under the following conditions:

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ISUZU KB P190 2007

Engine Management – V6 – Diagnostics Page 6C1-2–243

B1S1 Lambda Value (Bank 1 Sensor 1) :1 (= Lambda) 1.000 1.003
B1S2 O2 Sensor (Bank 1 Sensor 2) mV 440 445
B1S2 Short Term Fuel Trim (Bank 1 Sensor 2) % 99.2% 99.2%
B2S1 O2 Sensor (Bank 2 Sensor 1) mA 0.000 0.024
B2S1 Lambda Value (Bank 2 Sensor 1) :1 (= Lambda) 1.003 0.995
B2S2 O2 Sensor (Bank 2 Sensor 2) mV 440 475
B2S2 Short Term Fuel Trim (Bank 2 Sensor 2) % 99.2 99.2
Fuel System 1 Automatic Control Loop — — —
Fuel System 2 Automatic Control Loop — — —
Calculated Load % 100.0 18.8
Engine Coolant Temperature
°C 56 90
B1 Short Term Fuel Trim (Bank 1)
% 0.0 –0.8
B1 Long Term Fuel Trim (Bank 1) % 0.0 0.0
B2 Short Term Fuel Trim (Bank 2) % 0.0 0.8
B2 Long Term Fuel Trim (Bank 2) % 0.0 0.0
Engine Speed RPM 0 588
Vehicle Speed km/h 0 0
Ignition Timing Advance for Cylinder 1
°CA 0 13
Intake Air Temperature
°C 47 32
Mass Air Flow
g/s 0.00 2.75
Absolute TP (Throttle Position) % 14.5
OBD Requirements to which Vehicle is Designed EOBD — —
Distance W hile MIL is Activated km 0 0
8.6 Actuator Tests
Fuel Pump Relay Test
This test allows the Technician to turn the fuel pump on and off.
NOTE
To avoid the possibility of engine flooding and
subsequent catalytic converter damage, Tech 2
will deactivate the fuel pump relay after 2
seconds.
Precondition: Ignition ‘On’, engine ‘Off’.
Electronic Throttle Control Test
This selection from the Tech 2 Actuator Test menu, provides two parameters; the Calculated Throttle Position and the
Desired Throttle Position. As the Technician increases or decreases the throttle opening in 10% increments, each of the
two parameters should be the same.
Preconditions: Ignition ‘On’, engine ‘Off’, vehicle speed is 0 km/h, there are no vehicle speed DTCs set and the ECM is
not performing a throttle learn procedure.
A/C Relay Test
Allows the Technician to turn the air conditioning relay ‘On’ and ‘Off’.

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Engine Management – V6 – Diagnostics Page 6C1-2–245

Starter Motor Relay Test
The engine will crank and start during the
starter relay test.
Allows the Technician to turn the starter relay ‘On’, thereby activating the starter motor and cranking the engine.
Preconditions: Apply park brake, firmly apply foot brake, ignition ‘On’, engine ‘Off’, transmission in Park or Neutral.
Fuel Injector Balance
This test allows the Technician to check the fuel flow through each injector when the engine is not running. The
sequence of events are:
1 Install a fuel pressure gauge to the fuel rail.
2 Select ‘Fuel Injector Balance Test’, from the ‘Actuator Test’ menu on Tech 2
3 Activate the fuel injector balance test with Tech 2. This action activates the fuel pump and stabilises the fuel delivery system fuel pressure. The fuel pump is then turned off.
4 Note the stabilised fuel rail pressure.
5 W hen the pump is turned ‘Off’, the injector is activated for a pre-determined time.
6 The fuel pressure drop is then noted from the fuel pressure gauge.
NOTE
For a detailed procedure and analysis of fuel
injector condition, refer to 5.3 Fuel Injector
Balance Test.
8.7 Programming
F0: ICU Link to ECM/PIM : Should the ECM, PIM or ICU be replaced, the modules must be security linked to
each other. If this linking procedure is not performed, the vehicle will not crank nor run. For additional
information relating to Tech 2 and the linking procedure, refer to 11A – Immobiliser.
NOTE
After an ECU reset, the ignition switch must be
turned Off for at least 10 seconds and then
turned On for at least one minute, before
attempting communication between Tech 2 and
the ECU.
Preconditions: TIS approval (TIS 2000 Security Access) must be obtained, the four digit security number
entered into Tech 2 and the theft deterrent system disarmed. Then the ignition must be turned ‘On’, using a
programmed remote coded key.
F1: Reset ECU : This function erases the security link between the Engine Control Module (ECM) and the
Powertrain Interface Modules (PIM). If this procedure is performed, the engine will not crank nor run. A ICU
Link to ECM/PIM procedure will need to be performed. For additional information relating to the ICU Link to
ECM/PIM procedure, refer to 11A – Immobiliser.

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