5NP-Q5T3B-05

GROUP
NUMBER
FUEL SYSTEM
Technical Service Bulletin
18-FL-001
DATE
MODEL(S)
APRIL, 2018
TUCSON (LM FCEV)
FUEL CELL CONTROL UNIT (FCU) SOFTWARE UPDATE
SUBJECT:
 IMPORTANT
Dealers should perform this software improvement whenever an affected vehicle is in the shop for
any maintenance or repair.
Description:
This bulletin provides information related to the FCU (Fuel Cell Control Unit) software
update for TUCSON FCEV (LM FCEV) vehicles. This update includes improvement for fuel cell stack
durability and diagnosis condition.
Applicable Vehicles:
15MY ~ 17MY Tucson (LM) Fuel Cell Electric Vehicle
VIN range KMHJU816FEU000140 ~ KM8JU3A67HU001045
[NOTE]
- To verify the vehicle is affected, be sure to check the version of the vehicle’s control unit ROM ID
with reference to the ROM ID Information Table mentioned below before attempting to update the
control unit software.
ROM ID Information Table:
Part Number
Current ROM ID
Updated ROM ID
39931-4W000
HLMFFZMPAS1-D000
HLMFFZMPAS2-D000
HLMFFZMPAS3-D000
HLMFHZMPAS4-D000
GDS MOBILE Information:
Event #
463
Description
LM FCEV FCU SOFTWARE UPGRADE
Warranty Information:
Model
Tucson Fuel
Cell
Op. Code
39930F02
Operation
FCU
UPDATE
Op. Time
Causal Part
Nature
Cause
0.3 M/H
39931-4W000
I14
ZZ3
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair
SUBJECT:
15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
SERVICE PROCEDURE:
General Precautions:
NOTICE
Make sure the battery icon at the bottom right of the GDS-Mobile shows at least 50%; if not,
charge the GDS-Mobile or attach a battery charger.






If vehicle has been in storage for several days, run the fuel cell a sufficient amount of time to
ensure the 12 volt battery is fully charged.
To ensure the 12 volt battery will not become discharged during the update. Turn off all lights
and all accessories, including heater/air conditioner, fan, audio, heated seats, rear defroster, etc.
Do not leave the headlight switch in auto mode.
Perform the update with the vehicle Start/Stop button in the ON position. To do this, press the
Start/Stop button two times without pressing the brake pedal.
Do not start the Fuel Cell.
Do not turn OFF the Start/Stop button during the update.
Do not disconnect any cables connected to the vehicle or the GDS Mobile during the update.
NOTICE
Confirm your GDS Mobile has the most recent software version. If not, connect the GDS
Mobile to an Internet port, open the GDS Mobile home page and select “Update”. Refer to
instructions on www.hyundaitechinfo.com if necessary.
If you encounter GDS related problems, call the GIT Helpline at 888-437-0308.
If voltage is below 12 volts as per the below GDS warning, select Back Button
then run
the fuel cell or charge the 12 volt battery to ensure an adequate state of charge for reliable
update results. Turn system power back on and then retry the ECU update again.
TSB #: 18-FL-001
Page 2 of 12
SUBJECT:
SUBJECT: 15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
Automatic Update Procedure Using GDS-Mobile (Global Diagnostic System - Mobile)
1. Connect external power to the GDS Mobile.
Connect the VCI-II into the vehicle's DLC
connector under the driver side instrument
panel and check that the VCI-II is powered
on.
DLC
2. Turn on vehicle system power by pressing the
Start/Stop button two times without pressing the
brake pedal. DO NOT start the fuel cell.
[ NOTE ]
- ECU upgrade function on GDS-Mobile is basically operating in wireless communication as Wi-Fi
direct. Also it’s possible to perform the upgrade via USB cable between GDS Mobile and VCI-II.
- Before starting the ECU upgrade, make certain that the battery of GDS Mobile is sufficiently charged.
3.
Select “ECU Upgrade” on the initial screen
after entering the vehicle information.
TSB #: 18-FL-001
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SUBJECT:
15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
4.
5.
Read CAUTIONS in Information tab.
Select “Auto Mode”.
6.
Select the FCU System, then select ID Check
button.
If after selecting ID check a pop-up window
states the ECU upgrade has already been
completed, then select “OK” and no further
action is required.
TSB #: 18-FL-001
Page 4 of 12
SUBJECT:
SUBJECT: 15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
7.
The GDS-Mobile will read the current ROM ID in
vehicle and check the newest upgrade event.
Select the upgrade event “463.LM FCEV FCU STACK DURABILITY IMPROVEMENT”. Then
then select “Upgrade”.
8.
The vehicle battery voltage is checked to make
sure it is at least 12 volts to assure reliable upgrade
results.
Click “OK” if the results indicate “Voltage is OK”.
[NOTE] - If voltage is below 12 volts as shown,
select Back Button “
” and then run the fuel
cell or charge the 12 volt battery to ensure an
adequate charge state for reliable upgrade
results.
TSB #: 18-FL-001
Page 5 of 12
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9.
15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
Upgrade (1/2) will begin and the progress of the
upgrade will appear on the bar graph.
Upgrade (1/2) will occur until 100% is reached on
the bar graph.
10.
Upgrade (2/2) will begin and the progress of the
upgrade will appear on the bar graph.
Upgrade (2/2) will occur until 100% is reached on
the bar graph.
NOTE: Instrument panel warning lights may flash,
and warning chirp may sound during this portion of
update.
TSB #: 18-FL-001
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SUBJECT: 15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
11.
Turn the system power to “OFF” using the
Start/Stop button, and wait 10 seconds, turn system
power to “ON” again, DO NOT start the fuel cell.
Select “OK” to continue according to information
displayed on the screen.
12.
Select “OK” on the final screen, which indicates
upgrade is complete.
TSB #: 18-FL-001
Page 7 of 12
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SUBJECT:
15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
13.
When prompted to run Fault Code Searching,
select "Yes".
14.
Check and clear any incidental Diagnostic Trouble
Codes (DTC) created during the update. Check
and clear both “Current” and “History/Pending”
DTCs.
15.
Start the fuel cell and confirm proper operation of
the vehicle.
TSB #: 18-FL-001
Page 8 of 12
SUBJECT:
SUBJECT: 15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
GDS-Mobile, Manual Mode FCU Update Procedure:
NOTICE
-
Manual update should be performed only when the automatic update fails.
If automatic update fails, turn off vehicle system power using Start/Stop button wait
10 seconds, and then restore vehicle system power using Start/Stop button to reset
the control unit before performing manual update.
1.
Within the ECU Upgrade screen, select “Manual
Mode”.
2.
Select the appropriate control unit part number
referenced in the ROM ID Table on page one of
this TSB.
3.
Select ”Upgrade”.
4.
Enter the password to the right select “OK”.
TSB #: 18-FL-001
MENU
LM FCEV FCU 39930-4W000
PASSWORD
4000
Page 9 of 12
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SUBJECT:
5.
15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
The vehicle battery voltage is checked to make
sure it is at least 12 volts to assure reliable
upgrade results.
Click “OK” if the results indicate voltage is Ok.
[NOTE] - If voltage is below 12 volts as shown,
select Back Button
and then run the fuel
cell or charge the 12 volt battery to ensure an
adequate charge state for reliable upgrade
results.
6.
Upgrade (1/2) will begin and the progress of the
upgrade will appear on the bar graph.
Upgrade (1/2) will occur until 100% is reached on
the bar graph.
7.
Upgrade (2/2) will begin and the progress of the
upgrade will appear on the bar graph.
Upgrade (2/2) will occur until 100% is reached on
the bar graph.
NOTE: Instrument panel warning lights may flash,
and warning chirp may sound during this portion
of update.
TSB #: 18-FL-001
Page 10 of 12
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SUBJECT: 15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
8.
Turn the system power to “OFF” using the Start /
Stop button, and wait 10 seconds, turn system
power to “ON” again, DO NOT start the fuel cell.
Select “OK” to continue according to information
displayed on the screen.
9.
Select “OK” on the final screen, which indicates
upgrade is complete.
TSB #: 18-FL-001
Page 11 of 12
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SUBJECT:
15MY~17MY TUCSON LM FCEV- FCU SOFTWARE UPDATE
10.
When prompted to run Fault Code Searching
select "Yes".
11.
Check and clear any incidental Diagnostic Trouble
Codes (DTC) created during the update. Check
and clear both “Current” and “History/Pending”
DTCs.
12.
Start the fuel cell and confirm proper operation of
the vehicle.
TSB #: 18-FL-001
Page 12 of 12
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