ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-3
Specifications
Temperature vs Resistance
Engine Coolant Temperature vs. Resistance
Intake Air Temperature vs. Resistance
Fuel Temperature vs. Resistance
Altitude vs Barometric Pressure
° C °FOhms
Temperature vs. Resistance Value (Approximately)
110 230 160
100 212 200 90 194 260
80 176 350
70 158 470
60 140 640
50 122 880
40 104 1250
30 86 1800
20 68 2650
10 50 4000 0 32 6180
-10 14 9810
-20 -4 16000
-30 -22 27000
° C °FOhms
Temperature vs. Resistance Value (Approximately)
90 194 240
80 176 320
70 158 430
60 140 590
50 122 810
40 104 1150
30 86 1650
20 68 2430
10 50 3660
0325650
-10 14 8970
-20 -4 14700
° C °FOhms
Temperature vs. Resistance Value (Approximately) 110 230 140
100 212 180
90 194 24080 176 310
70 158 420
60 140 580
50 122 810
40 104 1150
30 861660
20 682450
10 503700
03 2574 0
-10 149160
-20 -415000
-30 -2225400
Altitude Measured in Meters (m) Altitude Measured
in Feet (ft) Barometric
Pressure
Measured in
Kilopascals (kPa)
Determine your altitude by contacting a local weather station or by using another reference source.
4267 14000 56 - 64
3962 13000 58 - 66
3658 12000 61 - 69
3353 11000 64 - 72
3048 10000 66 - 74
2743 900069 - 77
2438 800071 - 79
2134 700074 - 82
1829 600077 - 85
1524 500080 - 88
1219 400083 - 91
914 300087 - 98
610 200090 - 98
305 100094 - 102
0 0 Sea Level 96 - 104
-305 -1000101 - 105
°
C °FO hm s
Temperature vs. Resistance Value (Approximately)
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ISUZU KB P190 2007
ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-5
P0093 227 AAA Fuel System Leak Detected
P0101 92 A -- Mass Air Flow Sensor Circuit Range/ Performance
P0102 91 A AA Mass Air Flow Sensor Circuit Low Input
P0103 91 A AA Mass Air Flow Sensor Circuit High Input
P0107 32 A A- Manifold Absolute Pressure Sensor Circuit Low Input
P0108 32 A A- Manifold Absolute Pressure Sensor Circuit High Input
P0112 22 A AA Intake Air Temperature Sensor Circuit Low
P0113 22 A AA Intake Air Temperature Sensor Circuit High
P0116 23 A --Engine Coolant Temperature Sensor Circuit Range/
Performance
P0117 23 A AA Engine Coolant Temperature Sensor Circuit Low
P0118 23 A AA Engine Coolant Temperature Sensor Circuit High
P0122 43 B AA Throttle Position Sensor Circuit Low
P0123 43 B AA Throttle Position Sensor Circuit High
P0182 211 A AA Fuel Temperature Sensor Circuit Low
P0183 211 A AA Fuel Temperature Sensor Circuit High
P0192 245 A AA Fuel Rail Pressure Sensor Circuit Low
P0193 245 A AA Fuel Rail Pressure Sensor Circuit High
P0201 271 A AA Injector Circuit Open - Cylinder 1
P0202 272 A AA Injector Circuit Open - Cylinder 2
P0203 273 A AA Injector Circuit Open - Cylinder 3
P0204 274 A AA Injector Circuit Open - Cylinder 4
P0217 542 D DD Engine Coolant Over Temperature Condition
P0219 543 C AA Engine Overspeed Condition
P0231 69 C AA Fuel Pump Secondary Circuit Low
P0232 69 C AA Fuel Pump Secondary Circuit High
P0234 42 A A- Turbocharger Overboost Condition
P0299 65 A A- Turbocharger Underboost
P0335 15 A AA Crankshaft Position Sensor Circuit
P0336 15 A AA Crankshaft Position Sensor Circuit Range/ Performance
P0340 14 C AA Camshaft Position Sensor Circuit
P0341 14 C AA Camshaft Position Sensor Circuit Range/ Performance
P0380 66 C AA Glow Plug Circuit
P0401 93 A -- EGR Flow Insufficient Detected
P0403 37 B AA EGR Control Circuit
P0404 45 A AA EGR Control Circuit Range/ Performance
P0405 44 B AA EGR Sensor Circuit Low
P0406 44 B AA EGR Sensor Circuit High
P0500 25 A AA Vehicle Speed Sensor
DTC
Flash
Code DTC Type
DTC Descriptor
Euro 4
Specification Except Euro 4
Specification
(High Output) Except Euro 4
Specification (Standard Output)
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6E-16 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Gauges
RTW76EXF004701
Fuel
consumption
signal
output
11 676
8
7 5 B-56
C-107 8 B-24
17
0.3
BLK/
YEL
0.5
YEL
0.5
YEL
0.5
YEL
0.5
BLK
0.85
BLK 6
7 0.5
BLK/
YEL 0.5
BLK/
YEL
0.5
BLK/
YEL 0.5
BLK/
YEL 0.5
BLK/
YEL
0.5
BLK/
YEL 0.5
BLK
0.85
BLK
0.85
BLK
0.85
BLK
0.85
BLK 0.5
BLK
0.5
BLK0.5
WHT
0.5
BLK/
RED
0.3
BLK/
RED
20
13
23 0.3
YEL/
RED
0.3
YEL/
RED 0.5
YEL/
BLK
0.5
YEL/
BLK
0.5
YEL/
RED 0.5
YEL/
BLK
0.5
GRN/
RED
ECM(27)
ECM(26) 0.3
BLK/
RED
0.5
BLK/
RED
4
20.3
ORN/
WHT
0.5
ORN/
WHT
Fuel
tank
sender
unit
10 C-94
TCM
Engine
speed
signal
inputTCM
7 C-94
62 C-58 A/T
Engine
speed
signal
output
33 IP
cluster
70 B-23
B-24
B-23
H-18
H-4
12
5
H-9
F-2
F-2
3
22 E-41
31
H-4
2 H-6
H-4 M/T
A/T 4WD
A/T 2WD
10
H-15
E-10
E-10 4
C-58
ECT
sensor
VSS
E-44
E-44
1
2 3
C-14
Meter
10A
Fuse/
relay
box
(Cabin) Speedometer
Fuel gaugeEngine coolant
temperature gauge
Tachometer Multi display
ECM
Signal
ECM
+B VSS
signal
output
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ISUZU KB P190 2007
ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-27
Component Locator
Engine Controls Component Views
Legend1. Accelerator pedal position (APP) sensor
Legend
1. Barometric pressure (BARO) sensor (Standard output)
Legend 1. Crankshaft (CKP) sensor
Legend
1. Camshaft position (CMP) sensor
2. Engine coolant temperature (ECT) sensor
RTW56ESH004301
1
RTW76ESH002701
1
RTW76ESH002301
1
RTW56ESH002401
1 2
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ISUZU KB P190 2007
ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-37
EGR ValveEngine Coolant Temperature (ECT) Sensor
Connector No.
B-58
Connector Color Black
Test Adapter No. J-35616-2A
Pin No. Wire Color Pin Function
1 BKL/ GRN Diagnostic request switch (ECM)
2 — Not used
3 — Not used
4 BLK Ground
5 BLK Ground
6 BLU CAN high
7 VIO/ GRN Keyword serial data (TCM
[standard output], EHCU [ABS
module] and SRS control unit)
8 — Not used
9 — Not used
10 — Not used 11 YEL/ BLK Diagnostic request switch (TCM)
12 ORN/ WHT Diagnostic request switch (EHCU
[ABS module])
13 RED Diagnostic request switch (SRS
control unit)
14 YEL CAN low
15 — Not used
16 RED/ YEL Battery voltage
LNW46ESH001901
1
4 2
5 3
6
Connector No. E-71
Connector Color Gray
Test Adapter No. J-35616-64A
Pin No. Wire Color Pin Function
1 WHT/ BLU Position sensor 5V reference
2 RED Position sensor low reference
3 GRY Position sensor signal
4 BRN Solenoid drive voltage
5—Not used
6 YEL Solenoid control low side (PWM)
Connector No. E-41
Connector Color Gray
Test Adapter No. J-35616-64A
Pin No. Wire Color Pin Function
1 GRN/ RED Sensor signal
2 WHT Sensor low reference
3 YEL/ BLK Gauge signal
LNW46ESH001701
12
3
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ISUZU KB P190 2007
ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-47
Scan Tool Data List
The Engine Scan Tool Data List contains all engine
related parameters that are available on the scan tool.
A given parameter may appear in any one of the data
lists, and in some cases may appear more than once,
or in more than one data list in order to group certain
related parameters together. Use the Engine Scan Tool
Data List only after the following is determined:
• The Engine Controls - Diagnostic System Check is completed. • On-board diagnostics are functioning properly.
Scan tool values from a properly running engine may
be used for comparison with the engine you are
diagnosing. The Engine Scan Tool Data List represents
values that would be seen on a normal running engine.
Only the parameters listed below are referenced in this
service manual for use in diagnosis.
Scan Tool Parameter Units Displayed Typical Data Value at Engine Idle Typical Data Value at 2000RPM
Operating Conditions: Engine idling or 2000RPM/ Engine coolant temperature is between 75 to 85 °C (167 to 185 °F)/
Accelerator pedal is constant/ Neutral or Park/ Accessories OFF/ Vehicle located at sea level
Engine Speed RPMNearly 700 RPM Nearly 2000 RPM
Desired Engine Idle Speed RPM700 RPM 700 RPM
Calculated Engine Load %- -
Coolant Temperature °C/ °F 75 to 85 °C/ 167 to 185 °F 75 to 85 °C/ 167 to 185 °F
Engine Coolant Temperature Sensor Volts
0.4 to 0.6 volts 0.4 to 0.6 volts
Intake Air Temperature °C/ °F 20 to 40 °C/ 68 to 104 °F 20 to 40 °C/ 68 to 104 °F
Intake Air Temperature Sensor Volts 1.4 to 2.3 volts1.4 to 2.3 volts
Fuel Temperature °C/ °F 20 to 60 °C/ 68 to 140 °F 20 to 60 °C/ 68 to 140 °F
Fuel Temperature Sensor Volts0.8 to 2.3 volts 0.8 to 2.3 volts
MAF (Mass Air Flow) g/sec300 to 600 g/sec 200 to 600 g/sec
MAF Sensor (Mass Air Flow) Volts1.2 to 1.6 volts 2.0 to 2.7 volts
Barometric Pressure kPa/psi Nearly 100 kPa/ 14.5 psi at sea
levelNearly 100 kPa/ 14.5 psi at sea
level
Barometric Pressure Sensor VoltsNearly 2.3 volts at sea level Nearly 2.3 volts at sea level
Turbocharger Solenoid Command %
50 to 60 % 50 to 60 %
Desired Boost Pressure kPa/ psi Nearly 100 kPa/ 14.5 psi at sea
levelLess than 120 kPa/ 17.4 psi
Boost Pressure kPa/ psi Nearly 100 kPa/ 14.5 psi at sea
levelLess than 120 kPa/ 17.4 psi
Boost Pressure Sensor VoltsNearly 1.0 volt Less than 1.3 volts
Desired Fuel Rail Pressure MPa/ psi 30 MPa/ 4,350 psiMore than 70 MPa/ 10,200 psi
(4JJ1 Euro 4 specification)
More than 50 MPa/ 7,250 psi
(4JJ1 except Euro 4 specification)
More than 60 MPa/ 8,700 psi
(4JK1)
Fuel Rail Pressure MPa/ psi 27 to 33 MPa/ 3,900 to 4,800 psi More than 70 MPa/ 10,200 psi
(4JJ1 Euro 4 specification)
More than 50 MPa/ 7,250 psi (4JJ1 except Euro 4 specification)
More than 60 MPa/ 8,700 psi (4JK1)
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ISUZU KB P190 2007
ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-49
Cam/ Crank Sensor Signal Synchronization Status Asynchronous/ No
Crank Signal/ Synchronous Synchronous Synchronous
Engine Runtime Time (hour: minute: second) Va r i e s
Va r i e s
Vehicle Speed km/h / MPH0 km/h / 0 MPH 0 km/h / 0 MPH
Transmission Gear Out of gear/ 1st/ 2nd/ 3rd/ 4th/ 5th Out of gear
Out of gear
Starter Switch On/OffOn On
Ignition Switch On/OffOn On
Ignition Voltage Volts11.0 to 15.0 volts 11.0 to 15.0 volts
Battery Voltage Volts11.0 to 15.0 volts 11.0 to 15.0 volts
Fuel Pump Relay Command On/ Off OnOn
Swirl Control Solenoid Command On/ Off OnOn
Fuel Filter Switch On/ OffOn On
A/C Request Signal On/ OffOff Off
A/C Relay Command On/ OffOff Off
Park/ Neutral Switch Neutral/ In Gear NeutralNeutral
Glow Relay Command On/ OffOff Off
Glow Plug Lamp Command On/ Off OffOff
Brake Switch 1 Applied/ Released Released Released
Brake Switch 2 Applied/ Released Released Released
Clutch Pedal Switch Applied/ Released ReleasedReleased
Cruise Main Lamp Command On/ Off OffOff
Cruise Main Switch On/ OffOff Off
Cruise Cancel Switch On/ OffOn On
Cruise Resume Switch On/ OffOff Off
Cruise Set Switch On/ OffOff Off
MIL Command (Malfunction Indicator Lamp) On/ Off
Off Off
SVS Lamp Command (Service Vehicle Soon) On/ Off
Off Off
Limp Home Mode None/ 1/ 2/ 3/ 4 None None
Distance While MIL is Activated km/ Mile 0 km/ 0 Mile0 km/ 0 Mile
Engine Runtime With MIL Active minutes 00
Total Engine Overspeed Event Counter VariesVaries
Total Engine Coolant
Overtemperature Event Counter
Varies Varies
Total Fuel Temperature
Overtemperatrure Event Counter
Varies Varies
Total Intake Air Temperature Overtemperaure Event Counter
Varies Varies
Immobilizer Function Programmed Ye s / N o
Ye s Ye s
Wrong Immobilizer Signal Yes/ NoNo No
Scan Tool Parameter Units Displayed Typical Data Value at Engine Idle Typical Data Value at 2000RPM
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ISUZU KB P190 2007
6E-50 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Scan Tool Data Definitions
This information will assist in emission or driveability
problems. The displays can be viewed while the vehicle
is being driven. Always perform the Diagnostic System
Check - Engine Controls first. The Diagnostic System
Check will confirm proper system operation.
Engine Speed
This parameter displays the rotational speed of the
crankshaft as calculated by the ECM based on inputs
from the crankshaft position (CKP) sensor or camshaft
position (CMP) sensor.
Desired Idle Speed
This parameter displays the idle speed requested by
the ECM. The ECM will change desired idle speed
based on engine coolant temperature and other inputs.
Calculate Engine Load
This parameter displays the engine load in percent
based on inputs to the ECM from various engine
sensors. The scan tool will display a lower percentage
when the engine is at idle with little or no load. The
scan tool will display a higher percentage when the
engine is running at high engine speed under a heavy
load.
Coolant Temperature
This parameter displays the temperature of the engine
coolant as calculated by the ECM using the signal from
the engine coolant temperature (ECT) sensor. The
scan tool will display a low temperature when the ECT
sensor signal voltage is high, and a high temperature
when the ECT sensor signal voltage is low.
Engine Coolant Temperature Sensor
This parameter displays the voltage signal sent to the
ECM from the engine coolant temperature (ECT)
sensor. ECT sensor is a range of value indicating a low
voltage when the temperature is high, and a high
voltage when the temperature is low.
Intake Air Temperature
This parameter displays the temperature of the intake
air as calculated by the ECM using the signal from the
intake air temperature (IAT) sensor. The scan tool will
display a low temperature when the IAT sensor signal
voltage is high, and a high temperature when the IAT
sensor signal voltage is low. Intake Air Temperature Sensor
This parameter displays the voltage signal sent to the
ECM from the intake air temperature (IAT) sensor. IAT
sensor is a range of value indicating a low voltage
when the temperature is high, and a high voltage when
the temperature is low.
Fuel Temperature
This parameter displays the temperature of the fuel as
calculated by the ECM using the signal from the fuel
temperature (FT) sensor. The scan tool will display a
low temperature when the FT sensor signal voltage is
high, and a high temperature when the FT sensor
signal voltage is low.
Fuel Temperature Sensor
This parameter displays the voltage signal sent to the
ECM from the fuel temperature (FT) sensor. FT sensor
is a range of value indicating a low voltage when the
temperature is high, and a high voltage when the
temperature is low.
MAF (Mass Air Flow)
This parameter displays the air flow into the engine as
calculated by the ECM based on the mass air flow
(MAF) sensor input. The scan tool will display a high
value at higher engine speeds, and a low value at lower
engine speed.
MAF Sensor (Mass Air Flow)
This parameter displays the voltage signal sent to the
ECM from the mass air flow (MAF) sensor. MAF sensor
is a range of value indicating a low voltage at lower
engine speed, and a high voltage at a higher engine
speeds.
Barometric Pressure
This parameter displays the barometric pressure
(BARO) as calculated by the ECM using the signal from
the BARO sensor. The scan tool will display a low
barometric pressure in high altitude area.
Barometric Pressure Sensor
This parameter displays the voltage signal sent to the
ECM from the barometric pressure (BARO) sensor.
BARO sensor is a range of value indicating a low
voltage in high altitude area, and a middle voltage in
sea level.
Immobilizer Signal Yes/ NoYes Yes
Security Wait Time Inactive/ Time
(hour: minute: second) Inactive
Inactive
Scan Tool Parameter Units Displayed Typical Data Value at Engine Idle Typical Data Value at 2000RPM
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