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How to Install the Engine Accelerator for HINO L-Series Truck

Outline figure of Engine Accelerator

How to install
• Ensure that the body control lever is equipped with a full speed stopper, in order to control the stroke of the sensor lever.
• Adjust the body control lever so that the full speed stopper makes contact earlier than the stroke stopper of accelerator sensor.
• Ensure that the accelerator sensor lever will be in contact with the idling stopper by adjusting the speed control lever when the P.T.O. or equipment is not operating (during normal driving).


Nexiq USB Link 2

HINO DX3 2024

HINO Truck Service Manual 2022 Workshop Repair Book

The clearance specified for the accelerator sensor stroke stopper is for reference only.
If the sensor side stopper comes into contact earlier, stresses will be imposed upon the sensor shaft and may result in damage to the parts.
Also, if the sensor lever does not come into contact with the idling stopper, it may result in improper engine operation during normal driving conditions.

When installing the cable on the accelerator sensor lever, ensure that the cable pulls in a parallel direction to the lever stroke so that an imbalanced load is not applied to the sensor shaft. See the following figure.

Cautions when installing the engine accelerator sensor
• Do not attempt to disassemble the sensor.
• Do not drop or otherwise shock the sensor, as this will lead to malfunction.
• Prevent water intrusion or direct splash.
• The sensor operating range is -30°C to 80°C (-22°F to 176°F) and should only be used in that range.
• Avoid mounting the sensor in an area that may receive casual impacts.
• The sensor must be located in an area free of oil, dust, humidity, chemicals and vibration.
• If a well protected location is not available, then a cover must be installed.
• Install the wiring harness so that it is secure and not able to twist or bend.
• Refer to the Chapter 7 for instructions regarding installation of the harness.
• If the sub-harness is not long enough, extending the harness must be completed using the same type of wire.

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HINO J05E Engine 2018 VNT Actuator Initialize Error P003A Solution

This instruction show you guide on how to solve HINO J05E Engine 2018 VNT Actuator Initialize failure.


Related Contents:

HINO DX3 Diagnostic Software



Technical Description:

1) The VNT actuator moves the nozzle vane steplessly by the LEA (Linear Electric Actuator) to control the turbo speed and boost pressure.

2) The LEA has a sensor to detect the movement of the actuator, always monitoring the reading and actual value of the nozzle vane opening.

3) Wiping operation is performed while the engine is stopped for the purpose of removing soot and oil coming out from the range of vane operation and checking the turbo mechanical operating range for abnormality.


DTC Set Condition:

1) DTC Detection Condition:

  1. a) Starter key “ON”.
  2. b) The battery voltage is in the range of 10 to 16 V.
  3. c) The engine is stopped, or the engine speed remains at 500 r/min or more for 5 seconds or more.

2) Judgement Criteria:

  1. a) Initialization failure – When the amount of operation after power has been turned ON is larger than HI range, or when the Hall IC output does not become constant after 5 seconds has elapsed


Reset Condition:

1) After normal operation is restored and the starter key is turned “LOCK”.


Indication, Warning or System Control Regulation When The DTC Is Set:

1) MIL: ON

2) SVS light: OFF

3) Engine output is restricted.


Symptoms On The Vehicle The DTC Is Set:

1) Symptoms On The Vehicle Due To Backup Control (Fail Safe Function):

  1. a) Engine output is insufficient.

2) Symptoms On The Vehicle Due To Malfunction:

  1. a) None


Pre-Inspection Work:

1) Check that the battery voltage is in the normal range.


After-Inspection Work:

1) Clear all past DTCs.

2) Check that no DTC is detected after test drive.

Possible Causes:

1) VNT link is stuck or cannot operate due to rust, etc.

2) External link is disconnected.