EMISSIONS RECALL
CAB OVER ENGINE (COE) ECU AND DCU
SOFTWARE UPDATE

CAMPAIGN NO: AADK0
DATE: 6-20-2019
REFERENCE: QA-190618-N1

SUBJECT VEHICLES: 18MY-19MY COE trucks equipped with a

J05 engine

Note: Refer to the appropriate Vehicle Identification Number
in the warranty system to determine vehicle eligibility.
5. Handling of Dealership Inventory
Under 40 Code of Federal Regulations § 1068.101, a dealer cannot
sell, offer for sale, or introduce or deliver for introduction in interstate
commerce a new motor vehicle when it is aware that the vehicle does
not comply with an applicable Federal Motor Vehicle Safety Standard
or contains a defect related to motor vehicle safety. A civil penalty of
up to $44,539 may be assessed for each engine or piece of equipment
in violation. In addition, 49 Code of Federal Regulations §577.13
requires us to provide the following advisory: It is a violation of
Federal law for a dealer to deliver a new motor vehicle or any new or
used item of motor vehicle equipment (including a tire) covered by
this notification under a sale or lease until the defect or
noncompliance is remedied.
We request your assistance to ensure involved vehicles are identified
and not delivered prior to performing the remedy.
OVERVIEW:

Software updates are required for the Engine ECU (Engine
Control Unit) and DCU (Dosing Control Unit) modules. These
updates are intended to address the following items.
1) SCR (Selective Catalytic Reduction) Feed Back Monitor
(P2BAE)
2) DPF (Diesel Particulate Filter) Feed Back Monitor (P24A1 or
P24A0)
3) Urea SCR Tank Heater Valve Stuck Open Monitor (P20B2)
4) MIL (Malfunction Indicator Lamp) ON software issue for
DCU; OBD (On Board Diagnostics) Improvement
5) NOx (Oxides of Nitrogen) sensor offset monitor
(P2201)

Hino is using this opportunity to implement OBD improvement
items (which are not by themselves recall items) that are included
in all affected engines.

DPF Over Temperature Monitor (P200C)
All Cylinder Misfire Detection Monitor (P0300)
Misfire Monitor (Conventional vehicles: P0301-P0304)
DOC1 (Diesel Oxidation Catalyst) Over Temperature Monitor
(P2428)
SCR Feed Back Monitor (P2BAE)
Reductant Temperature “Too High” Monitor (P24FF)
BEFORE YOU BEGIN:
• Read and understand all instructions and procedures before
you begin the work.
• Read and follow all NOTICES, WARNINGS, and CAUTIONS
set forth in this publication. These alerts help to avoid damage
to components, serious personal injury, or both.
• Park the vehicle on a level and solid surface and apply the
parking brake.
• Confirm the engine is stopped, the starter switch is in the off
(LOCK) position, and the key is removed.
• Wear safety glasses to prevent eye injuries.
• Place wheel chocks in front of and behind all wheels.
• NOTICE: Before beginning these procedures, you MUST
install a battery charger on the vehicle to ensure battery power
does not go low during reprogramming.
• NOTICE: Before beginning these procedures, you also MUST
be certain that the laptop battery is fully charged, or a remote
AC power supply is connected to the laptop to ensure the
battery power does not go low during
reprogramming.

VEHICLE PREPARATION:
1. Park the vehicle on a flat, level and solid surface.

2. Confirm the engine is stopped, the ignition switch is in the off (LOCK)
position, and the key is removed.

3. Apply the parking brake.

4. Chock all of the wheels.

Engine ECU Software
PART NUMBER

89663-E4048
89663-E4058
89663-E4645
89663-E4655

MODEL YEAR

ENGINE SERIES

2018 Diesel

J05ETP

2018 Hybrid

J05EUG

2019 Diesel

J05ETP

2019 Hybrid

J05EUG

QUANTITY

As Required By
VIN or Higher

DCU Software

PC PREPARATION
PC Power Management
CAUTION: Disable the computer features listed below. Failure to disable
these features may severely damage the vehicle’s control modules.
1. Screen saver
2. Energy saving features
a. Monitor
b. Hard disks
c. System standby
NOTICE: The illustrations above depict what you will see on your computer
screen with regard to the features which must be disabled. The location
on the screen of the features to be disabled will vary, however, based
upon the operating software. Consult your IT
(Information Technology) department as required.

DCU & ECU REPROGRAMMING PROCEDURE
CAUTION: Two modules will be reprogrammed during this procedure. A
battery charger MUST be installed on the vehicle to ensure battery power
does not go low during reprogramming or damage to these modules may
occur. DO NOT start the procedure without the battery charger being
installed.

1. Prepare a DXII compatible interface, such as the Denso DST-i or the

Nexiq USB Link 2 to perform this reprogramming procedure.
To assemble the interface cable, perform the following steps.
(1) Connect the DLC (Diagnostic Link Connector) cable to the interface.
(2) Connect the USB Cable to the interface.
(3) Connect the USB connector to the USB port on your computer.

2. Connect the DLC cable to the vehicle’s DLC connector. The DLC

connector is found under the dash on the left side of the steering column.

3. On your computer, locate the “Hino DX2” icon and open it.

4. Hino DX2 will prompt you for a “User ID” and “Password”. Enter your

User ID-, and password and then select the “Login” icon. Verify that the
DX2 has software version 1.1.19.6 or later.

5. Insert the ignition key into the starter switch and turn the key to the

“ON” position.

6. Select the “Reprogramming” icon.

7. Select “300 Series” under the “Vehicle Classification” drop down menu.

8. Select “DCU (Doser)” under the “System Classification” drop down
menu and then select the “OK” icon.

9. Follow the prompts to update the DCU to the latest software level using
the Hino Diagnostic eXplorer II (Hino DX2). Refer to the following table for
the appropriate software part number for the application.

DCU Software

10. Once DCU reprogramming is complete, turn the starter switch to the
“LOCK” position and remove the key for one minute.

11. After waiting at least one minute, insert the ignition key into the starter

switch and turn the key to the “ON” position.

12. Again, select the “Reprogramming” icon.

13. Select “300 Series” under the “Vehicle Classification” drop down

menu.

14. Select “ECU (Engine J-Series)” under the “System Classification” drop

down menu and then select the “OK” icon.

15. Follow the prompts to update the ECU to the latest software level

using the Hino Diagnostic eXplorer II (Hino DX2). Refer to the following
table for the appropriate software part number for the application.

ECU Software

16. Once ECU reprogramming is complete, turn the starter switch to the
“LOCK” position and remove the key for one minute.

17. After waiting at least one minute, insert the ignition key into the starter
switch and turn the key to the “ON” position.

18. During ECU software reprogramming, other DTC’s may have been

set. These DTC’s will need to be cleared, in the manner indicated in steps
19-22, prior to completing this emission recall. Select the “Diagnosis” icon.

19. Check mark the “Device Classification”. This should automatically
check mark the remaining devices. Select the “Read Out” icon.

20. Select the “Delete All” icon.

21. Select the “Delete” icon.

22. Select the “OK” icon.

23. From the Engine ECU Data Monitor and Active Test menu, select

Active Test Setting>Urea SCR Related Memory Reset> then follow the
prompts to complete the reset.

24. Select the “New Diagnosis” icon.

25. Select the “OK” icon.

26. Turn the starter switch to the “LOCK” position and remove the key.

REPAIR LABEL INSTALLATION PROCEDURE
Once all above steps in this recall procedure have been completed, apply a
recall label to the left door jamb above the VIN label. Fill in the Campaign
No, Dealer code, and Repair date. Proceed to the Final Inspection
Procedure, below.

CALIFORNIA VEHICLES ONLY:
When an Emissions Recall is performed by a California Dealer a “Proof of
Correction” certificate must be completed and provided to the vehicle
owner to submit to the California Department of Motor Vehicles if requested
during vehicle registration. If the “Proof of Correction” certificate is not
provided, an owner may not be able to renew the vehicle registration. If not
requested by the DMV, the form should be retained for the Owner’s
records. A downloadable form can be found on Hinonet/ Service/ Print
Forms under the description “Proof of Correction”.

FINAL INSPECTION:
•
•

•
•

The Engine DCU and ECU module software were updated to the latest
levels as outlined by this recall procedure.
When reprogramming, DTC’s may have inadvertently been set. Make
certain that all codes logged as a result of the ECU reprogramming
have been cleared from the Engine ECU, Transmission ECU, ABS ECU
and DCU prior to releasing the truck back to the customer.
The Urea SCR Related Memory Reset was performed.
The recall label was installed on the door jamb.

CLAIM APPLICATION
COE DCU and ECU Reprogramming:
a) Campaign No: AADK0
b) Labor charge: Reprogram ECU/DCU 1.2 hrs.
c) Warranty code: 86311
d) Trouble code: 98
e) Operation code: 86350AOT
f) Original failed part: 9999999999