display ISUZU KB P190 2007 Workshop Repair Manual

Engine Management – V6 – Diagnostics Page 6C1-2–224

Ignition ON:
• Engine stopped, ignition in the ON position.
• Closed throttle.
• Transmission selector in the Park position (Automatic
Transmission) or Neutral (Manual Transmission.
• Engine, transmission at ambient temperature.
• Accessories are OFF.
• Brake pedal is not applied.
Engine Running
• Engine running.
• Closed throttle.
• Transmission selector in the Park position (Automatic
Transmission) or Neutral (Manual Transmission.
• Engine, transmission at normal operating temperature.
• Accessories are OFF.
• Brake pedal not applied.
NOTE
The values quoted in the following data lists are
only intended to provide the Technician with an
indication of the values to be expected.
W hen ‘F1 Data Display’ is selected, there are 12 data lists provided, that can save time when diagnosing symptomatic
conditions.
Engine Data 1
Engine Data 2
EVAP Data
Fuel Trim Data
O2 Sensor Data
TAC Data (Throttle Actuator Control)
Cooling/HVAC Data
Cruise Control Data
Electrical/Theft Data
Instrument Data
ODM Data (Output Driver Module)
Misfire Data
F2: OBD Data
In this test mode, Tech 2 displays engine management data parameters relating to the OBD (On Board Diagnostic) for
the engine being diagnosed. Refer to 8.5 OBD Data for specific detail.
F3: Snapshot
In this test mode, Tech 2 captures data before and after a snapshot triggering event that may or may not set a DTC.
F4: Actuator Test
In this test mode, Tech 2 performs software override commands to the ECM, to assist in problem isolation during
diagnostics. W hen entering this mode, there are 9 actuators that can be tested for operational integrity. The 9 tests
available are:
F0: Fuel Pump Relay Test
F1: Electronic Throttle Control Test
F2: A/C Relay Test
F3: Cooling Fan PW M
F4: Alternator L Terminal

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Engine Management – V6 – Diagnostics Page 6C1-2–225

F5: EVAP Purge Solenoid
F6: Engine Speed Control
F7: Starter Relay Test
F8: Fuel Injector Balance
F5: Additional Functions
W hen this selection is made from the Tech 2 screen, an additional two choices are provided:
F0: System Identification: In this mode, Tech 2 will display the engine identification screen.
F1: Security Information: W hen selected, this mode displays various engine management data parameters relating to the security system.
F6: Programming
W ithin this selection, there are five programming selections available:
F0: Immobiliser Link to ECM/PIM
F1: Reset ECU
F2: Fuel Trim Reset
F3: Reset Engine Oil Life
F4: Throttle Body Relearn

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Engine Management – V6 – Diagnostics Page 6C1-2–226

8.3 HFV6 Engine Data Lists
Engine Data 1
Tech 2 Display Units Displayed Ignition On Engine Running
Engine Speed RPM 0 1077
Desired Engine Idle Speed RPM 830 1090
Coolant Temperature °C 21 27
Intake Air Temperature °C 31 24
Mass Air Flow g/s 0.00 7.28
Engine Load % 100 30
Volumetric Efficiency % 99 23
Calculated Pedal Position % 0 0
Desired Throttle Position % 4 4
Calculated Throttle Position % 6 4
Barometric Pressure kPa 100 100
Barometric Pressure V 4.78 4.78
Loop Status B1S1 (Bank 1 Sensor 1) Open / Closed Open Closed
Loop Status B2S1 (Bank 2 Sensor 1) Open / Closed Open Closed
B1S1 O2 Sensor (Bank 1 Sensor 1) :1 (= Lambda) 1.0 1.0
B1S2 O2 Sensor (Bank 1 Sensor 2) mV 442 460
B2S1 O2 Sensor (Bank 2 Sensor 1) :1 (= Lambda) 1.0 1.0
B2S2 O2 Sensor (Bank 2 Sensor 2) mV 442 477
B1 Short Term Fuel Trim (Bank 1) % 0 -1
B1 LTFT Idle/Deceleration (Bank 1 Long Term Fuel
Trim) % 0 0
B1 LTFT Cruise/Acceleration (Bank 1 Long Term Fuel
Trim) % 0 0
B2 Short Term Fuel Trim (Bank 2)
% 0 –1
B2 LTFT Idle/Deceleration (Bank 2 Long Term Fuel
Trim) % 0 0
B2 LTFT Cruise/Acceleration (Bank 2 Long Term Fuel
Trim) % 0 0
(2) Transmission Gear
P-N / In Gear P-N P-N
EVAP Purge Solenoid (Evaporative Emission)
% 0 0
Fuel Level L 21 20
Spark Advance °CA 0 9
B1 Knock Sensor Signal (Bank 1) V 3.6 0.3
B2 Knock Sensor Signal (Bank 2) V 3.6 0.3
Knock Retard °CA 0 0
Knock Retard Cylinder 1 °CA 0 0
Knock Retard Cylinder 2 °CA 0 0

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Engine Management – V6 – Diagnostics Page 6C1-2–227

Knock Retard Cylinder 3 °CA 0 0
Knock Retard Cylinder 4 °CA 0 0
Knock Retard Cylinder 5 °CA 0 0
Knock Retard Cylinder 6 °CA 0 0
Ignition Accessory Signal Off / On On On
Ignition On Signal Off / On On On
Malfunction Indicator (MI) Off / On / Flashing On Off
Fuel Pump Relay Off / On Off On
Engine Control Ignition Relay Off / On On On
Engine Control Ignition Relay Feedback V 11.5 14.1
(1) Actual Gear -1- / -2- / -3- / -4- / -
5- / -P/N- / -R- / -Invalid- -P/N- -P/N-
Brake Lamp Switch
Inactive / Active Inactive Inactive
Reduced Engine Power Inactive / Active Inactive Inactive
DTC Set This Ignition No DTC / DTC Set No DTC No DTC
Vehicle Speed km/h 0 0
Engine Runtime h:m:s 00:00:00 00:05:20
(2) Clutch Pedal Switch Inactive / Active Inactive Inactive
(1) Automatic Transmission Only (2) Manual Transmission Only
Engine Data 2
Tech 2 Display
Units Displayed Ignition On Engine Running
Engine Speed RPM 0 751
Desired Engine Idle Speed RPM 830 750
Coolant Temperature °C 21 78
Cooling Fan On/Off Off On
Calculated ECT – Closed Loop Fuel Control (Engine
Coolant Temperature) °C 21 37
Calculated ECT – Thermostat Diagnosis (Engine
Coolant Temperature) °C 22 78
Intake Air Temperature
°C 31 27
Start Up ECT (Engine Coolant Temperature) °C 21 21
Start Up IAT (Intake Air Temperature) °C –48 30
Mass Air Flow Sensor V 1.00 1.3
Mass Air Flow g/s 0.00 5.47
Engine Load % 100 25
Volumetric Efficiency % 99 19
Power Enrichment No / Yes No No
Dec. Fuel Cutoff (Deceleration) Inactive / Active Inactive Inactive
Calculated Pedal Position % 0 0

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Engine Management – V6 – Diagnostics Page 6C1-2–229


EVAP Data
Tech 2 Display Units Displayed Ignition On Engine Running
EVAP Purge Solenoid (Evaporative Emission) % 0 31
Fuel Level L 21 20
Fuel Level Sensor V 1.24 1.25
Time Since Engine Off h:m:s 00:00:01 00:00:01
Engine Speed RPM 0 748
Desired Engine Idle Speed RPM 830 750
Coolant Temperature
°C 21 91
Start Up ECT (Engine Coolant Temperature)
°C 21 21
Start Up IAT (Intake Air Temperature)
°C –48 30
Intake Air Temperature
°C 31 30
Mass Air Flow Sensor
V 1.0 1.3
Engine Load % 100 23
Volumetric Efficiency % 99 18
Calculated Pedal Position % 0 0
Desired Throttle Position % 4 2
Calculated Throttle Position % 6 2
Barometric Pressure kPa 100 100
Loop Status B1S1 (Bank 1 Sensor 1) Open / Closed Open Closed
Loop Status B2S1 (Bank 2 Sensor 1) Open / Closed Open Closed
B1S1 O2 Sensor (Bank 1 Sensor 1) :1 (=Lambda) 1.0 23
B2S1 O2 Sensor (Bank 2 Sensor 1) :1 (=Lambda) 1.0 16
B1 Short Term Fuel Trim (Bank 1) % 0 –2
B1 LTFT Idle/Deceleration (Bank 1 Long Term Fuel
Trim) % 0 0
B1 LTFT Cruise/Acceleration (Bank 1 Long Term Fuel
Trim) % 0 0
B1 Total Fuel Trim (Bank 1)
% 0 -4
B2 Short Term Fuel Trim (Bank 2) % 0 0
B2 LTFT Idle/Deceleration (Bank 2 Long Term Fuel
Trim) % 0 0
B2 LTFT Cruise/Acceleration (Bank 2 Long Term Fuel
Trim) % 0 0
B2 Total Fuel Trim (Bank 2)
% 0 1
Fuel Trim Learn Disabled / Enabled Disabled Disabled
Ignition Accessory Signal Off / On On On
Ignition On Signal Off / On On On
DTC Set This Ignition No DTC / DTC Set No DTC No DTC

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Engine Management – V6 – Diagnostics Page 6C1-2–230

Vehicle Speed km/h 0 0
Engine Runtime h:m:s 00:00:00 00:10:25
Fuel Pump Relay Off / On Off On
(1) Automatic Transmission Only (2) Manual Transmission Only
Fuel Trim Data
Tech 2 Display Units Displayed Ignition On Engine Running
B1 Short Term Fuel Trim (Bank 1) % 0 –1
B1 LTFT Idle/Deceleration (Bank 1 Long Term Fuel
Trim) % 0 1
B1 LTFT Cruise/Acceleration (Bank 1 Long Term Fuel
Trim) % 0 0
B1 Total Fuel Trim (Bank 1)
% 0 4
B2 Short Term Fuel Trim (Bank 2) % 0 0
B2 LTFT Idle/Deceleration (Bank 2 Long Term Fuel
Trim) % 0 1
B2 LTFT Cruise/Acceleration (Bank 2 Long Term Fuel
Trim) % 0 0
B2 Total Fuel Trim (Bank 2)
% 0 4
Fuel Trim Learn Disabled / Enabled Disabled Disabled
Loop Status B1S1 (Bank 1 Sensor 1) Open / Closed Open Closed
Loop Status B2S1 (Bank 2 Sensor 1) Open / Closed Open Closed
Injection Time Cylinder 1 ms 0.0 2.5
Injection Time Cylinder 2 ms 0.0 2.5
Injection Time Cylinder 3 ms 0.0 2.5
Injection Time Cylinder 4 ms 0.0 2.5
Injection Time Cylinder 5 ms 0.0 2.5
Injection Time Cylinder 6 ms 0.0 2.5
Requested Torque % 99 99
Catalyst Protection Mode Inactive / Active Inactive Inactive
B1 Catalyst Temperature (Bank 1)
°C 300 300
B2 Catalyst Temperature (Bank 2)
°C 300 300
B1S1 O2 Sensor (Bank 1 Sensor 1)
:1 (= Lambda) 0.99 0.99
B1S2 O2 Sensor (Bank 1 Sensor 2) mV 438 520
B2S1 O2 Sensor (Bank 2 Sensor 1) :1 (= Lambda) 0.99 0.99
B2S2 O2 Sensor (Bank 2 Sensor 2) mV 438 516
B1 Average Injection Time (Bank 1) ms 0.0 2.5
B2 Average Injection Time (Bank 2) ms 0.0 2.5
Power Enrichment No / Yes No No
Dec. Fuel Cutoff (Deceleration) Inactive / Active Inactive Inactive
EVAP Purge Solenoid (Evaporative Emission) % 0 32

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Engine Management – V6 – Diagnostics Page 6C1-2–231

Engine Speed RPM 0 592
Coolant Temperature
°C 39 91
Intake Air Temperature
°C 32 26
Start Up ECT (Engine Coolant Temperature)
°C 39 34
Start Up IAT (Intake Air Temperature)
°C –48 30
Mass Air Flow Sensor
V 1.0 1.2
Engine Load % 100 22
Volumetric Efficiency % 99 15
Calculated Pedal Position % 0 0
Calculated Throttle Position % 5 1
Barometric Pressure kPa 102 102
Barometric Pressure V 4.88 4.88
Spark Advance
°CA 0 12
Ignition On Signal
Off / On On On
(1) Actual Gear -1- / -2- / -3- / -4- / -
5- / -P/N- / -R- / -Invalid- -P/N- -P/N-
DTC Set This Ignition
No DTC / DTC Set No DTC No DTC
Vehicle Speed km/h 0 0
Engine Runtime h:m:s 00:00:00 00:12:30
Ignition Accessory Signal Off / On On On
Mass Air Flow g/s 0.00 3.33
(1) Automatic Transmission Only (2) Manual Transmission Only
O2 Sensor Data
Tech 2 Display Units Displayed Ignition On Engine Running
Loop Status B1S1 (Bank 1 Sensor 1) Open / Closed Open Closed
Loop Status B2S1 (Bank 2 Sensor 1) Open / Closed Open Closed
Commanded B1S1 O2 Sensor Value (Bank 1 Sensor 1) :1 (= Lambda) 0.99 0.94
Commanded B2S1 O2 Sensor Value (Bank 2 Sensor 1) :1 (= Lambda) 0.99 0.94
B1S1 O2 Sensor (Bank 1 Sensor 1) :1 (= Lambda) 0.99 0.94
B1S2 O2 Sensor (Bank 1 Sensor 2) mV 438 538
B2S1 O2 Sensor (Bank 2 Sensor 1) :1 (= Lambda) 0.99 0.99
B2S2 O2 Sensor (Bank 2 Sensor 2) mV 438 486
B1S1 O2 Sensor Heater (Bank 1 Sensor 1) Ohm 540 80
B2S1 O2 Sensor Heater (Bank 2 Sensor 1) Ohm 540 80
Commanded B1S1 O2 Sensor Heater (Bank 1 Sensor 1) % 0.0 42.0
Commanded B2S1 O2 Sensor Heater (Bank 2 Sensor 1) % 0.0 42.0
B1 Short Term Fuel Trim (Bank 1) % 0 –1
B1 LTFT Idle/Deceleration (Bank 1 Long Term Fuel
Trim) % 0 1

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Engine Management – V6 – Diagnostics Page 6C1-2–232

B1 LTFT Cruise/Acceleration (Bank 1 Long Term Fuel
Trim) % 0 0
B1 Total Fuel Trim (Bank 1)
% 0 4
B2 Short Term Fuel Trim (Bank 2) % 0 0
B2 LTFT Idle/Deceleration (Bank 2 Long Term Fuel
Trim) % 0 1
B2 LTFT Cruise/Acceleration (Bank 2 Long Term Fuel
Trim) % 0 0
B2 Total Fuel Trim (Bank 2)
% 0 4
Fuel Trim Learn Disabled / Enabled Disabled Disabled
Power Enrichment No / Yes No No
Dec. Fuel Cutoff (Deceleration) Inactive / Active Inactive Inactive
Engine Speed RPM 0 600
Coolant Temperature °C 39 93
Intake Air Temperature °C 32 28
Start Up ECT (Engine Coolant Temperature) °C 39 34
Start Up IAT (Intake Air Temperature) °C –48 30
Mass Air Flow Sensor V 1.0 1.1
Mass Air Flow g/s 0.00 3.17
Engine Load % 100 20
Volumetric Efficiency % 99 14
Calculated Pedal Position % 0 0
Calculated Throttle Position % 5 1
Barometric Pressure kPa 102 102
Barometric Pressure V 4.88 4.88
Spark Advance °CA 0 12
DTC Set This Ignition No DTC / DTC Set No DTC No DTC
Vehicle Speed km/h 0 0
Engine Runtime h:m:s 00:00:00 00:14:40
(1) Automatic Transmission Only (2) Manual Transmission Only
TAC Data (Throttle Actuator Control)
Tech 2 Display Units Displayed Ignition On Engine Running
Reduced Engine Power Inactive / Active Inactive Inactive
Calculated Pedal Position % 0 0
Desired Throttle Position % 4 1
Calculated Throttle Position % 5 1
APP Sensor 1-2 Correlation (Accelerator Pedal Position
Sensor) Okay / Fault Okay Okay
TP Sensor 1-2 Correlation (Throttle Position)
Okay / Fault Okay Okay
APP Sensor 1 (Accelerator Pedal Position) V 1.02 1.02

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Engine Management – V6 – Diagnostics Page 6C1-2–233

APP Sensor 2 (Accelerator Pedal Position) V 0.47 0.47
TP Sensor 1 (Throttle Position) V 0.73 0.57
TP Sensor 2 (Throttle Position) V 4.27 4.43
TP Sensor 1 Learned Lower Position (Throttle Position) V 0.53 0.53
TP Sensor 2 Learned Lower Position (Throttle Position) V 4.49 4.49
Electronic Throttle Control Learn Counter Counts 11 11
Brake Lamp Switch Inactive / Active Inactive Inactive
Brake Switch Signal Status Valid / Invalid Valid Valid
Initial Brake Apply Signal Inactive / Active Inactive Inactive
Engine Speed RPM 0 598
Desired Engine Idle Speed RPM 680 600
Coolant Temperature
°C 38 96
Intake Air Temperature
°C 32 29
Mass Air Flow Sensor
V 1.0 1.1
Mass Air Flow g/s 0.00 3.11
Barometric Pressure kPa 102 102
Barometric Pressure V 4.88 4.88
Engine Load % 100 20
Volumetric Efficiency % 99 14
Ignition Accessory Signal Off / On On On
Ignition On Signal Off / On On On
Engine Control Ignition Relay Off / On On On
Engine Control Ignition Relay Feedback V 11.7 14.0
DTC Set This Ignition No DTC / DTC Set No DTC No DTC
Vehicle Speed km/h 0 0
Engine Runtime h:m:s 00:00:00 00:16:25
(1) Automatic Transmission Only (2) Manual Transmission Only
Cooling/HVAC Data
Tech 2 Display Units Displayed Ignition On Engine Running
Coolant Temperature
°C 37 100
Cooling Fan
Off / On Off Off
Intake Air Temperature
°C 32 30
A/C Request
No / Yes No No
A/C Relay (Air Conditioning) Off / On Off Off
A/C Pressure Sensor (Air Conditioning) V 1.0 1.5
A/C Pressure Sensor (Air Conditioning) kPa 732.55 1121.25
A/C Cutoff Mode (Air Conditioning) Inactive / Pressure /
Max. Acceleration / Active Inactive Inactive

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Engine Management – V6 – Diagnostics Page 6C1-2–234

A/C Disengagement 1st History Refer List Below High
Pressure Engine Speed
A/C Disengagement 2nd History
Refer List Below High
Pressure High Pressure
A/C Disengagement 3rd History
Refer List Below High
Pressure High Pressure
A/C Disengagement 4th History
Refer List Below High
Pressure High Pressure
A/C Disengagement 5th History
Refer List Below High
Pressure High Pressure
A/C Disengagement 6th History
Refer List Below High
Pressure High Pressure
A/C Disengagement 7th History
Refer List Below High
Pressure High Pressure
A/C Disengagement 8th History
Refer List Below High
Pressure High Pressure
Start Up ECT (Engine Coolant Temperature)
°C 37 34
Start Up IAT (Intake Air Temperature)
°C –48 30
Engine Load
% 100 19
Volumetric Efficiency % 99 13
Spark Advance °CA 0 13
Knock Retard °CA 0 0
Engine Speed RPM 0 601
Vehicle Speed km/h 0 0
Engine Runtime h:m:s 00:00:00 00:19:15
A/C Disengagement History Units
High Pressure / Engine Speed / Low Battery / Stall Prevention / Full Load / Performance / Engine Temp / Not Present
Cruise Control Data
Tech 2 Display Units Displayed Ignition On Engine Running
Cruise Control Switch Inactive / Active Inactive Inactive
Cruise Control Active No / Yes No No
Cruise Set / Decel Switch Inactive / Active Inactive Inactive
Cruise Resume/Acceleration Switch Inactive / Active Inactive Inactive
Cruise Control Disengagement Reason Refer List Below Brake Brake
CC Disengagement 1st History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 2nd History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 3rd History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 4th History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 5th History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 6th History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 7th History (Cruise Control) Refer List Below Brake Brake
CC Disengagement 8th History (Cruise Control) Refer List Below Brake Brake

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