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Hino J05d/J08e Engine ECU Fault Codes List
Diagnostics Trouble Codes
The VNT actuator has a malfunction.
Turbo Charger Turbine
Over speed
The turbine rotation
sensor has been
detected.
Over speed of the turbo has been detected.
Common Rail
Pressure -Too high
High fuel pressure has been detected.
Fuel System Leak
Detected
The pump does not
work properly. (Fuel
leak)
There is a possibility of the fuel leakage.
Perform the fuel leakage check.
Mass Air Flow Sensor
Malfunction (LO)
"The mass air flow sensor has a malfunction.
There are possibilities of the sensor malfunction,
open and short circuit to ground in the harness."
Mass Air Flow Sensor
Malfunction (HI)
The mass air flow sensor has a malfunction.
There are possibilities of the sensor malfunction and
short circuit to +B in the harness.
Boost Pressure Sensor
Malfunction (HI)
The boost pressure cannot be detected properly.
There are possibilities of the sensor malfunction and
short circuit in the harness.
Intake Air Temperature
Sensor Malfunction (LO)
Integrated in the mass
air flow sensor.
"The temperature cannot be detected properly.
There are possibilities of the sensor malfunction,
short circuit to ground in the harness."
Intake Air Temperature
Sensor Malfunction (HI)
Integrated in the mass
air flow sensor.
"The temperature cannot be detected properly.
There are possibilities of the sensor malfunction,
open and short circuit to +B in the harness."
Engine Coolant
Temperature Sensor
Malfunction (LO)
The temperature cannot be detected properly.
There are possibilities of the sensor malfunction and
short circuit to ground in the harness.
Engine Coolant
Temperature Sensor
Malfunction (HI)
"The temperature cannot be detected properly.
There are possibilities of the sensor malfunction,
open and short circuit to +B in the harness."
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Fuel Temperature
Sensor Malfunction (LO)
Integrated in the supply
pump.
"The temperature cannot be detected properly.
There are possibilities of the sensor malfunction,
short circuit to ground in the harness."
Fuel Temperature
Sensor Malfunction (HI)
Integrated in the supply
pump.
"The temperature cannot be detected properly.
There are possibilities of the sensor malfunction,
open and short circuit to +B in the harness."
Rail Pressure Sensor
Malfunction
Characteristic malfunction
The rail pressure cannot be detected properly.
There is a possibility of the sensor malfunction.
Rail Pressure Sensor
Malfunction (LO)
The rail pressure cannot be detected properly.
There are possibilities of the sensor malfunction and
short circuit to ground in the harness.
Rail Pressure Sensor
Malfunction (HI)
"The rail pressure cannot be detected properly.
There are possibilities of the sensor malfunction,
open and short circuit to +B in the harness."
ECU Charge Circuit
Malfunction (HI)
The voltage for the injector activation is too high.
Replace the ECU.
There is a possibility of the Injector 1 malfunction or
open circuit in the harness.
There is a possibility of the Injector 2 malfunction or
open circuit in the harness.
There is a possibility of the Injector 3 malfunction or
open circuit in the harness.
There is a possibility of the Injector 4 malfunction or
open circuit in the harness.
There is a possibility of the Injector 5 malfunction or
open circuit in the harness.
There is a possibility of the Injector 6 malfunction or
open circuit in the harness.
Over Temperature
Condition
The over temperature condition has been detected.
Check the cooling system.
Engine Over speed
Condition
The engine speed exceeded the rated value.
Turbo Charger
Overboost Condition
The boost pressure is too higher than the specified
value.
Boost Pressure Sensor
Malfunction (LO)
"The intake air pressure cannot be detected properly.
There are possibilities of the sensor malfunction,
open and short circuit in the harness."
Correction Error
Between Cylinders #1
The rotation fluctuation in the cylinder 1 became bigger than other cylinders.
There is a possibility that the flow damper is operating.
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Correction Error
Between Cylinders #2
The rotation fluctuation in the cylinder 2 became bigger than other cylinders.
There is a possibility that the flow damper is operating.
Correction Error
Between Cylinders #3
The rotation fluctuation in the cylinder 3 became bigger than other cylinders.
There is a possibility that the flow damper is operating.
Correction Error
Between Cylinders #4
The rotation fluctuation in the cylinder 4 became bigger than other cylinders.
There is a possibility that the flow damper is operating.
Correction Error
Between Cylinders #5
The rotation fluctuation in the cylinder 5 became bigger than other cylinders.
There is a possibility that the flow damper is operating.
Correction Error
Between Cylinders #6
The rotation fluctuation in the cylinder 6 became bigger than other cylinders.
There is a possibility that the flow damper is operating.
Crankshaft Position
Sensor Malfunction
"In case that the NE
and G sensor have
malfunctions, this P
code will be output."
The pulse from the crankshaft position sensor cannot be detected.
There are possibilities of the sensor and harness
malfunctions.
Engine Speed Sensor
Malfunction
The pulse from the engine speed sensor cannot be
detected.
There are possibilities of the sensor and harness
malfunctions.
Clogging has been
detected by the lift sensor.
The EGR valve 1 is clogged in the open state.
EGR Lift Sensor 1
Malfunction (LO)
"The EGR lift sensor 1 has a malfunction.
There are possibilities of the sensor malfunction,
open and short circuit to ground in the harness."
EGR Lift Sensor 1
Malfunction (HI)
The EGR lift sensor 1 has a malfunction.
There are possibilities of the sensor malfunction and
short circuit to +B in the harness.
EGR Lift Sensor 2
Malfunction (LO)
"The EGR lift sensor 2 has a malfunction.
There are possibilities of the sensor malfunction,
open and short circuit to ground in the harness."
EGR Lift Sensor 2
Malfunction (HI)
The EGR lift sensor 2 has a malfunction.
There are possibilities of the sensor malfunction and
short circuit to +B in the harness.
EGR Solenoid Valve 1
Malfunction
"The EGR solenoid valve 1 has a malfunction.
There are possibilities of the solenoid valve malfunction, open and short circuit to ground in the harness."
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EGR Solenoid Valve 1
Malfunction
The EGR solenoid valve 1 has a malfunction.
There are possibilities of the solenoid valve malfunction and short circuit to +B in the harness.
Vehicle Speed Sensor
Malfunction (LO)
The pulse from the vehicle speed sensor cannot be
detected .
There are possibilities of the sensor and harness
malfunctions.
Vehicle Speed Sensor
Malfunction (HI)
The pulse from the vehicle speed sensor has an
error.
There are possibilities of the sensor and harness
malfunctions.
The idle switch does not function properly.
Monitor the state and check the ON/OFF judgment.
Engine Oil Pressure Too
Low
The engine oil pressure became too low.
Clogging has been
detected by the lift
sensor.
The EGR valve 2 system is clogged in the open
state.
Preheating System
Malfunction
The intake heater relay has a malfunction.
There are possibilities of the relay and harness malfunctions.
Exhaust Gas Temperature Sensor 1
Malfunction (LO)
The temperature cannot be detected properly.
There are possibilities of the sensor malfunction and
short circuit to ground in the harness.
Exhaust Gas Temperature Sensor 1
Malfunction (HI)
"The temperature cannot be detected properly.
There are possibilities of the sensor malfunction,
open and short circuit to +B in the harness."
There is an internal malfunction in the ECU.
Replace the ECU.
CPU Malfunction (Hardware Detected)
There is an internal malfunction in the ECU.
Replace the ECU.
CPU Monitoring ID
Malfunction
There is an internal malfunction in the ECU.
Replace the ECU.
ECU Charge Circuit
Malfunction
The voltage for the injector activation is too low.
Replace the ECU.
Starter Switch
Malfunction
There is a short in the starter switch circuit.
Monitor the state and check the ON/OFF judgment.
The main relay cannot be turned OFF.
Check the relay.
Clutch Switch
Malfunction
The clutch switch cannot be detected properly.
Monitor the state and check the ON/OFF judgment.
Neutral Switch
Malfunction
The neutral switch cannot be detected properly.
Monitor the state and check the ON/OFF judgment.