2007 ISUZU KB P190 FLASH CODE

6E-2 Engine Control System (4JH1)
DTC P0380 (Symptom Code 8)
(Flash Code 66) ............................................6E-139
DTC P0381 (Symptom Code 4)
(Flash Code 67) ............................................6E-141
DTC P0381 (Symptom Code 8)
(Flash Code 67) ............................................6E-144
DTC P0400 (Symptom Code 3)
(Flash Code 32) ............................................6E-146
DTC P0400 (Symptom Code 4)
(Flash Code 32) ............................................6E-149
DTC P0400 (Symptom Code 5)
(Flash Code 32) ............................................6E-152
DTC P0400 (Symptom Code 8)
(Flash Code 32) ............................................6E-155
DTC P0500 (Symptom Code 1, A)
(Flash Code 24) ............................................6E-157
DTC P0500 (Symptom Code B)
(Flash Code 24) ............................................6E-160
DTC P0560 (Symptom Code 1)
(Flash Code 35) ............................................6E-166
DTC P0560 (Symptom Code 2)
(Flash Code 35) ............................................6E-167
DTC P0560 (Symptom Code A)
(Flash Code 35) ............................................6E-169
DTC P0561 (Symptom Code A)
(Flash Code 18) ............................................6E-171
DTC P0561 (Symptom Code B)
(Flash Code 18) ............................................6E-173
DTC P0602 .....................................................6E-174
DTC P0606 (Symptom Code A, B)
(Flash Code 28) ............................................6E-175
DTC P0645 (Symptom Code 4)
(Flash Code 46) ............................................6E-176
DTC P0645 (Symptom Code 8)
(Flash Code 46) ............................................6E-179
DTC P0703 (Symptom Code A, B)
(Flash Code 25) ............................................6E-181
DTC P0704 (Symptom Code 6)
(Flash Code 57) ............................................6E-185
DTC P1105 (Symptom Code 1)
(Flash Code 86) ............................................6E-188
DTC P1105 (Symptom Code 2)
(Flash Code 86) ............................................6E-189
DTC P1120 (Symptom Code 1)
(Flash Code 21) ............................................6E-190
DTC P1120 (Symptom Code 7)
(Flash Code 21) ............................................6E-193
DTC P1120 (Symptom Code 9)
(Flash Code 21) ............................................6E-195
DTC P1120 (Symptom Code D)
(Flash Code 21) ............................................ 6E-197
DTC P1120 (Symptom Code E)
(Flash Code 21) ............................................ 6E-200
DTC P1173 (Symptom Code 3)
(Flash Code 22) ............................................ 6E-204
DTC P1173 (Symptom Code 7, A)
(Flash Code 22) ............................................ 6E-206
DTC P1335 (Symptom Code A)
(Flash Code 43) ............................................ 6E-207
DTC P1345 (Symptom Code A)
(Flash Code 41) ............................................ 6E-209
DTC P1520 (Symptom Code A)
(Flash Code 47) ............................................ 6E-210
DTC P1520 (Symptom Code B)
(Flash Code 47) ............................................ 6E-213
DTC P1605 (Symptom Code C, D, E)
(Flash Code 55) ............................................ 6E-216
DTC P1610 (Symptom Code A)
(Flash Code 56) ............................................ 6E-217
DTC P1611 (Symptom Code A)
(Flash Code 56) ............................................ 6E-218
DTC P1612 (Symptom Code A)
(Flash Code 56) ............................................ 6E-219
DTC P1613 (Symptom Code A)
(Flash Code 56) ............................................ 6E-220
DTC P1614 (Symptom Code A)
(Flash Code 56) ............................................ 6E-221
DTC P1625 (Symptom Code A)
(Flash Code 76) ............................................ 6E-222
DTC P1625 (Symptom Code B)
(Flash Code 76) ............................................ 6E-224
DTC P1630 (Symptom Code A, B)
(Flash Code 51) ............................................ 6E-226
DTC P1650 (Symptom Code A)
(Flash Code 44) ............................................ 6E-227
DTC P1650 (Symptom Code B)
(Flash Code 44) ............................................ 6E-230
DTC P1651 (Symptom Code A, B)
(Flash Code 45) ............................................ 6E-231
DTC P1690 (Symptom Code 4)
(Flash Code 77) ............................................ 6E-234
DTC P1690 (Symptom Code 8)
(Flash Code 77) ............................................ 6E-237
Glow Control System Check ........................... 6E-239
A/C Compressor System Check ..................... 6E-242
Symptoms - Engine Controls ............................. 6E-255 Symptoms - Engine Controls .......................... 6E-255
Intermittent Conditions .................................... 6E-256
Hard Start ........................................................ 6E-258

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ISUZU KB P190 2007

6E-30 Engine Control System (4JH1)
Diagnostic Information And Prosedures
Engine Control System Check Sheet





ENGINE CONTROL SYSTEM CHECK SHEET Inspectors Name
Customer’s Name Model & Model Year
Driver’s Name Chassis No.
Date Vehicle Brought In Engine No.
License No. Odometer Reading Km/miles

□ Engine Does
Not Run □
Engine does not crank
□No initial combustion
□ No complete combustion
□
Hard Start
□ Engine cranks slowly
□Other ( )
□
Abnormal idling speed
□High idling speed ( RPM)
□ Low idling speed ( RPM)
□
Rough idling □
Incorrect Idle
□ Other ( )
□
Hesitation, sag, stumble
□Surge, chuggles
□ Cut out, misses
□
Lack of power, sluggishness, sponginess □
Poor
Driveability □ Other ( )

□ Soon after starting
□After accelerator pedal depressed
Engine Stall
□ During A/C operation
□After accelerator pedal released
□ Shifting from N to D □

□ Other ( )
□
Black smoke
□White smoke
□ Poor fuel economy
□
Fuel knock, combustion noise
Problem Symptoms
□
Others
□ Other ( )
Dates problem occurred
□
Constant
□Intermittently ( times per day/month)
□ Once only Problem frequency
□ Other (
)
□ Fine
□Cloudy
□Rainy
□ Snow Weather
□ Various/Other (
)
□ Hot (approx. )
□Warm
□Cool
□ Cold (approx. )Outside
Temperature □ Any temperature
□
Highway
□Suburbs
□City area
□ Uphill Place
□ Downhill
□Rough road
□Other (
)
□ Over (approx. tons)
□No load
Load Condition
□ Other (approx. tons)

□ Cold
□Warming up
□After warming up
□ Any temperature Engine
Temperature □ Other ( )
□
Starting
□Just after starting ( Min.)
□ Idling
□
Racing
□Driving
□Constant speed
□ Acceleration
□
Deceleration
□A/C switch On/Off Engine Operation
□ Other ( )
Fuel Amount
□ Full
□Above 1/2
□Below 1/2
□ Near empty
Condition When Problem Occurs
Fuel
Bland
Condition of MIL
□Remains On
□Intermittently turns On
□ Does not turn On
Present Code
□Nothing
□P Code & Symptom Code
No. ( )Diagnostic Trouble
Code (DTC) or Flash
Code History Code □Nothing
□P Code & Symptom Code
No. ( )

Other Additional
Condition


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ISUZU KB P190 2007

Engine Control System (4JH1) 6E-31
Diagnostic Starting Point - Engine Controls
Begin the system diagnosis with Diagnostic System
Check - Engine Controls. The Diagnostic System Check
- Engine Controls will provide the following information:
• The identification of the control modules which
command the system.
• The ability of the control modules to communicate
through the serial data circuit.
• The identification of any stored diagnostic trouble
codes (DTCs) and the their statuses.
The use of the Diagnostic System Check - Engine
Controls will identify the correct procedure fo
r
diagnosing the system and where the procedure is
located.
Important:
Engine Control System Check Sheet must be used to
verify the complaint vehicle, you need to know the
correct (normal) operating behavior of the system and
verify that the customer complaint is a valid failure o
f
the system.

Reading Flash Diagnostic Trouble Codes
The provision for communicating with the ECM is the
Data Link Connector (DLC). The DTCs stored in the
ECM memory can be read either through a hand-held
diagnostic scanner such as scan tool plugged into the
DLC or by counting the number of flashes of the MIL
when the diagnostic test terminal of the DLC is
grounded. The DLC terminal “6” (diagnostic request
switch) is pulled “Low” (grounded) by jumped to DLC
terminal “4”, which is a ground wire.
Once terminals “4” and “6” have been connected, the
ignition switch must be moved to the “ON” position, with
the engine not running. The MIL will initially flash 12.
Then, the MIL will flash the first stored DTC three times,
second stored DTC three times and so on. All the
stored DTCs are flashed, then return 12 and continue to
flash the DTC. If no DTC exists, the MIL flashes 12
continuously. The flash DTC display will continue as
long as the DLC is shorted.









RTW 66ESF000501

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ISUZU KB P190 2007

6E-50 Engine Control System (4JH1)
Diagnostic Trouble Code (DTC) List
DTC
(Symptom Code) Flash
Code MIL
Status DTC Name on
scan tool Condition for
Running the DTC Condition for
Setting the DTC Possible Cause
P0100
(7) 65 ON Mass Air Flow
(MAF) Sensor
Circuit 5V
Reference High
Voltage •
The ignition switch
is ON.
•
The ECM detects
that the MAF sensor
5 volts reference
circuit voltage is
more than 5.2 volts
for 0.5 seconds. •
Sensor 5V reference circuit is
short to battery or ignition
voltage.
• Sensor 5V reference circuit is
short to the sensor ignition
voltage circuit.
• Faulty MAF sensor.
• Faulty ECM.

P0100 (9) 65 ON Mass Air Flow
(MAF) Sensor
Voltage 5V
Reference Circuit
Low Voltage •
The ignition switch
is ON.
•
The ECM detects
that the MAF sensor
5 volts reference
circuit voltage is
less than 4.6 volts
for 0.5 seconds. •
Sensor 5V reference circuit is
short to ground.
• Sensor 5V reference circuit is
short to the low reference circuit.
• Faulty MAF sensor.
• Faulty ECM.

P0100 (B) 65 ON Mass Air Flow
(MAF) Sensor
Circuit Low
Voltage •
The ignition switch
is ON.
• The engine is
running.
•
The ECM calculated
MAF is lower than -
18.6 kg/h for 5
seconds.
•
ECM (10A) fuse (EB1) open.
• Sensor ignition voltage feed
circuit is open circuit or high
resistance.
• Sensor 5V reference circuit is
open circuit, high resistance,
short to ground or short to the
low reference circuit.
• Sensor signal circuit is open
circuit, high resistance, short to
ground or short to the low
reference circuit.
• Poor harness connector
connection.
• Faulty MAF sensor installation.
• Faulty MAF sensor.
• Faulty ECM.

P0100 (C) 65 ON Mass Air Flow
(MAF) Sensor
Circuit High
Voltage •
The ignition switch
is ON.
• The engine is
running.
•
The ECM calculated
MAF is higher than
984 kg/h for 10
seconds.
•
Sensor signal circuit is short to
any 5V reference circuit, short to
battery or ignition voltage circuit.
• Sensor low reference circuit is
open circuit or high resistance.
• Poor harness connector
connection.
• Faulty MAF sensor.
• Faulty ECM.

P0105 (1) 34 ON Vacuum Pressure
Sensor Circuit
High Voltage •
The ignition switch
is ON. •
The ECM detects
that the vacuum
pressure sensor
signal voltage is
more than 4.4 volts
for 3 seconds. •
Sensor 5V reference circuit is
short to battery or ignition
voltage.
• Sensor signal circuit is short to
any 5V reference circuit, short to
battery or ignition voltage.
• Sensor low reference circuit is
open circuit or high resistance.
• Poor harness connector
connection.
• Faulty vacuum pressure sensor.
• Faulty ECM.


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ISUZU KB P190 2007

Engine Control System (4JH1) 6E-51
DTC
(Symptom Code) Flash
Code MIL
Status DTC Name on
scan tool Condition for
Running the DTC Condition for
Setting the DTC Possible Cause
P0105
(2) 34 ON Vacuum Pressure
Sensor Circuit Low
Voltage •
The ignition switch
is ON. •
The ECM detects
that the vacuum
pressure sensor
signal voltage is
less than 0.5 volts
for 3 seconds. •
Sensor 5V reference circuit is
open circuit or high resistance,
short to ground or short to the
low reference circuit.
• Sensor signal circuit is open
circuit, high resistance, short to
ground or short to the low
reference circuit.
• Poor harness connector
connection.
• Faulty vacuum pressure sensor.
• Faulty ECM.

P0105 (7) 34 ON Vacuum Pressure
Sensor Voltage 5V
Reference Circuit
High Voltage
•
The ignition switch
is ON. •
The ECM detects
that the vacuum
pressure sensor 5
volts reference
circuit voltage is
more than 5.2 volts
for 2.5 seconds.
•
Sensor 5V reference circuit is
short to battery or ignition
voltage.
• Faulty ECM.

P0105 (9) 34 ON Vacuum Pressure
Sensor Voltage 5V
Reference Circuit
Low Voltage
•
The ignition switch
is ON. •
The ECM detects
that the vacuum
pressure sensor 5
volts reference
circuit voltage is
less than 4.5 volts
for 2.5 seconds.
•
Sensor 5V reference circuit is
short to ground or short to low
reference circuit.
• Faulty vacuum pressure sensor.
• Faulty ECM.

P0110 (1) 23 ON Intake Air
Temperature (IAT)
Sensor Circuit
High Voltage •
The ignition switch
is ON.
•
The ECM detects
that the IAT sensor
signal voltage is
more than 4.7 volts
for 3 seconds. •
Sensor signal circuit is open
circuit, high resistance, short to
any 5V reference circuit, short to
battery or ignition voltage.
• Sensor low reference circuit is
open circuit or high resistance.
• Poor harness connector
connection.
• Faulty IAT sensor.
• Faulty ECM.

P0110 (2) 23 ON Intake Air
Temperature (IAT)
Sensor Circuit Low
Voltage
•
The ignition switch
is ON.
•
The ECM detects
that the IAT sensor
signal voltage is
less than 0.3volts
for 3 seconds.
•
Sensor signal circuit is short to
ground or short to the low
reference circuit.
• Faulty IAT sensor.
• Faulty ECM.
P0115
(1) 14 ON Engine Coolant
Temperature
(ECT) Sensor
Circuit High
Voltage •
The ignition switch
is ON.
•
The ECM detects
that the ECT sensor
signal voltage is
more than 4.7 volts
for 3 seconds. •
Sensor signal circuit is open
circuit, high resistance, short to
any 5V reference circuit, short to
battery or ignition voltage.
• Sensor low reference circuit is
open circuit or high resistance.
• Poor harness connector
connection.
• Faulty ECT sensor.
• Faulty ECM.

P0115 (2) 14 ON Engine Coolant
Temperature
(ECT) Sensor
Circuit Low
Voltage
•
The ignition switch
is ON.
•
The ECM detects
that the ECT sensor
signal voltage is
less than 0.3volts
for 3 seconds. •
Sensor signal circuit is short to
ground or short to the low
reference circuit.
• Faulty ECT sensor.
• Faulty ECM.


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ISUZU KB P190 2007

6E-52 Engine Control System (4JH1)
DTC
(Symptom Code) Flash
Code MIL
Status DTC Name on
scan tool Condition for
Running the DTC Condition for
Setting the DTC Possible Cause
P0180
(B) 15 ON Fuel Temperature
Sensor Circuit •
Ignition switch is
ON.
•
The PCU internal
FT sensor output is
lower than -40°C (-
40°F) for 3 seconds
or higher than
150°C (302°F) for 3
seconds.
•
Faulty PCU.

P0215 (A) 52 ON at
next
ignition cycle Engine Shutoff
(ESO) Solenoid
Control Circuit •
The ignition switch
is OFF.
• The engine speed
is lower than 1500
RPM.
• The vehicle speed
is lower than 1.5
km/h (1 MPH).
•
After the condition
for running the DTC
for 2 seconds, the
engine speed is
higher than 200
RPM when the ESO
solenoid valve is
commanded shutoff
from the PCU.
•
Faulty fuel injection pump.

P0215 (B) 52 ON Engine Shutoff
(ESO) Solenoid
Control Circuit •
The ignition switch
is ON. •
The PCU detects
high voltage
condition on the
ESO solenoid valve
control circuit for
longer than 1
second when the
ECM does not
command shutoff.
•
ESO solenoid valve control
circuit is short to battery or
ignition voltage.
• Faulty PCU.
• Faulty ECM.

P0215 (C) 52 ON Engine Shutoff
(ESO) Solenoid
Control Circuit •
The ignition switch
is OFF.
• The engine speed
is lower than 1500
RPM.
• The vehicle speed
is lower than 1.5
km/h (1 MPH).
•
The engine speed
is higher than 200
RPM within 2
seconds after the
condition for
running the DTC
are met.
•
ESO solenoid valve control
circuit is open circuit, high
resistance or short to ground.
• Faulty PCU.
• Faulty ECM.

P0215 (D) 52 ON Engine Shutoff
(ESO) Solenoid
Control Circuit
•
The ignition switch
is OFF. •
The ECM detects
internal CAN
controller does not
Bus OFF mode.
•
Faulty ECM.


P0216 (A) 54 ON Injection Timing
Control Circuit •
The engine speed
is higher than 700
RPM.
• The fuel injection
quantity is higher
than 4 mg/strk.
•
The PCU monitored
actual fuel injection
timing is advanced
more than desired
by 3°CA for longer
than 12 seconds or
retarded more than
desired by 6°CA for
longer than 12
seconds.
•
Excessive air in the fuel system.
• Loss fuel.
• Fuel suction side looseness,
kinks or blocked.
• Faulty or clogged fuel filter.
• Contaminated fuel.
• Faulty timing device.
• Faulty fuel injection pump CMP
sensor.


P0216 (B) 54 ON Injection Timing
Control Circuit •
The engine speed
is higher than 2014
RPM.
•
The PCU monitored
actual fuel injection
timing is oscillated
higher than desired
by 5.2°CA.
•
Excessive air in the fuel system.
• Loss fuel.
• Fuel suction side looseness,
kinks or blocked.
• Faulty or clogged fuel filter.
• Contaminated fuel.
• Faulty timing device.
• Faulty fuel injection pump CMP
sensor.


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ISUZU KB P190 2007

Engine Control System (4JH1) 6E-53
DTC
(Symptom Code) Flash
Code MIL
Status DTC Name on
scan tool Condition for
Running the DTC Condition for
Setting the DTC Possible Cause
P0243
(3) 64 ON Turbocharger
W aste gate
Solenoid Boost
Solenoid Circuit •
The ignition switch
is ON.
• The BARO is
between 0 hPa and
3500 hPa.
• The IAT is between
-50°C (-58 °F) and
200°C (392°F).
• The ECT is
between -50°C (-
58 °F) and 150°C
(302°F).
•
The ECM detects
that the vacuum
pressure is 50 hPa
lower than the
desired vacuum
pressure for 3
seconds.
•
Vacuum pressure sensor circuits
are high resistance.
• Faulty vacuum hoses
• Misrouted vacuum hoses.
• Faulty vacuum pressure sensor.
• Faulty turbocharger solenoid
valve.
• Faulty vacuum regulating valve.
• Faulty turbocharger wastegate
valve.
• Faulty ECM.

P0243 (4) 64 ON Turbocharger
W aste gate
Solenoid Boost
Solenoid Circuit
Low Voltage •
The ignition switch
is ON.
•
The ECM detects
that the low voltage
condition on the
turbocharger
solenoid valve
control circuit for
longer than 3
seconds when the
solenoid valve is
commanded OFF.
•
ECM (10A) fuse (EB1) open.
• Turbocharger solenoid valve
ignition voltage feed circuit is
open circuit or high resistance.
• Turbocharger solenoid valve
control circuit is open circuit,
high resistance or short to
ground.
• Poor harness connector
connection.
• Faulty turbocharger solenoid
valve.
• Faulty ECM.

P0243 (5) 64 ON Turbocharger
W astegate
Solenoid Boost
Solenoid Circuit •
The ignition switch
is ON.
• The BARO is
between 0 hPa and
3500 hPa.
• The IAT is between
-50°C (-58 °F) and
200°C (392°F).
• The ECT is
between -50°C (-
58 °F) and 150°C
(302°F).
•
The ECM detects
that the vacuum
pressure is 50 hPa
higher than the
desired vacuum
pressure for 3
seconds.
•
Vacuum pressure sensor low
reference circuit is high
resistance.
• Faulty vacuum hoses
• Misrouted vacuum hoses.
• Faulty vacuum pressure sensor.
• Faulty turbocharger solenoid
valve.
• Faulty vacuum regulating valve.
• Faulty turbocharger wastegate
valve.
• Faulty ECM.

P0243 (6) 64 ON Turbocharger
W aste gate
Solenoid Boost
Solenoid Circuit •
The ignition switch
is ON.
• The ECT is
between -50°C (-
58 °F) and 150°C
(302°F).
• The EGR solenoid
valve control is
OFF.
• The MAF sensor
DTC P0100 is not
set.
• The vacuum
pressure sensor
DTC P0105 is not
set.
• The IAT sensor
DTC P0110 is not
set.
•
The ECM detects
that the MAF
amount is 56
mg/strk higher than
the desired MAF for
3 seconds.
•
Faulty turbocharger wastegate
valve.
• MAF sensor low reference circuit
is high resistance.
• Faulty EGR valve vacuum
control system.
• Faulty EGR valve.
• Faulty EGR solenoid valve.
• Faulty EGR solenoid valve
vacuum hose routing.
• Faulty MAF sensor.


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ISUZU KB P190 2007

6E-54 Engine Control System (4JH1)
DTC
(Symptom Code) Flash
Code MIL
Status DTC Name on
scan tool Condition for
Running the DTC Condition for
Setting the DTC Possible Cause
P0243
(8) 64 ON Turbocharger
W aste gate
Solenoid Boost
Solenoid Circuit
High Voltage •
The ignition switch
is ON. •
The ECM detects
that the high
voltage condition on
the turbocharger
solenoid valve
control circuit for
longer than 3
seconds when the
solenoid valve is
commanded ON.
•
Turbocharger solenoid valve
control circuit is short to battery
or ignition voltage circuit.
• Faulty turbocharger solenoid
valve.
• Faulty ECM.

P0251 (6) 53 ON Injection Pump
Fuel Metering
Control •
The fuel injection
pump CMP sensor
signal is generated.
• The CAN
communication
between the ECM
and PCU is normal.
•
The PCU detects
that the fuel
injection solenoid
valve is operated
when the desired
fuel injection
quantity is
commanded 0
mg/strk.
•
Faulty fuel injection pump.
• Faulty PCU.


P0251 (7) 53 ON Injection Pump
Fuel Metering
Control •
The fuel injection
pump CMP sensor
signal is generated.
• The CKP sensor
signal is generated.
• The engine speed
is higher than 500
RPM.
•
The PCU detects
that the doubled
fuel injection pump
speed is lower than
engine speed by
690 RPM for longer
than 0.2 seconds.
•
Faulty CKP sensor signal.
• Faulty fuel injection pump CMP
sensor signal.
• Electrical interference.
• Magnetic interference.
• Faulty PCU.

P0251 (9) 53 ON Injection Pump
Fuel Metering
Control •
The ignition switch
is ON. •
The PCU detects
internal fuel
injection pump
control maps are
not programmed
during self-test.
•
Faulty PCU.


P0251 (A) 53 ON Injection Pump
Fuel Metering
Control •
The ignition switch
is ON. •
The PCU detects
internal EEPROM
or A/D converter is
failed during self-
test.
•
Faulty PCU.


P0251 (B) 53 ON Injection Pump
Fuel Metering
Control •
The ignition switch
is ON. •
The PCU detects
that the fuel
injection solenoid
valve drive circuit is
failed during self-
test.
•
Faulty fuel injection pump.
• Faulty PCU.


P0251 (D) 53 ON Injection Pump
Fuel Metering
Control •
The ignition switch
is ON. •
The PCU detects
that the fuel
injection solenoid
valve drive circuit
voltage level is
abnormal during
self-test.
•
Faulty fuel injection pump.
• Faulty PCU.



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ISUZU KB P190 2007