GROUP

NUMBER

CAMPAIGN

Technical Service Bulletin
SUBJECT:

DATE

20-01-005H
MODEL(S)

February, 2020

SONATA (DN8)

ECM SOFTWARE UPDATE – GDI P0456 (SERVICE CAMPAIGN T4N)

 IMPORTANT
*****Dealer Stock and Retail Vehicles*****
Dealers must perform this Service Campaign on all affected vehicles prior to customer retail
delivery and whenever an affected vehicle is in the shop for any maintenance or repair.
When a vehicle arrives at the Service Department, access Hyundai Motor America's "Warranty
Vehicle Information" screen via WEBDCS to identify open Campaigns.
Description:
This bulletin provides information related to an Electronic Control Module (ECM) software update to
revise the logic for DTC P0456: EVAP System Leakage Detected – Very Small Leak.
Applicable Vehicle: Certain 2020MY Sonata (DN8) equipped with 1.6T GDI engine.
Warranty Information:
Model

Op. Code

Operation

Op. Time

Causal Part

Nature

Cause

Sonata (DN8)

00DA03R0

ECM UPGRADE

0.3 M/H

39116-2M003

I3T

ZZ3

NOTE 1: Submit Claim on Campaign Claim Entry Screen.
NOTE 2: If a part is found in need of replacement while performing Service Campaign XXX and
the affected part is still under warranty, submit a separate warranty claim using the same
Repair Order. If the affected part is out of warranty, submit a Prior Approval Request for
goodwill consideration prior to performing the work.

NOTICE
The ECM Software Update takes approximately
15 minutes to perform. However, the vehicle is
equipped with a 30 minute factory default
Vehicle Auto-Shut Off feature.
If the Vehicle Shut-Off Timer: XX:XX appears
on the cluster, press OK on the steering wheel
to reset the timer before starting the ECM update.
In the event of ECM update failure due to
Vehicle Auto-Shut Off activation, perform the
ECM update again in the Manual mode.

Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair

ECM SOFTWARE UPDATE – GDI P0456 (SERVICE CAMPAIGN T4N)

SUBJECT:

GDS Information:
System Selection: ENGINE CONTROL MODULE (ECM)
Event #

Description

584*
DN8A 1.6T-GDI – P0456 DTC IMPROVEMENT
(*or use a later available event as listed in the GDS ECU Update screen if one is available.)
Service Procedure:
1. Perform GDS Mobile software update per TSB 15-GI-001.
2. After successful completion of ECM software update, check for Diagnostic Trouble Codes in
ALL menus and erase any DTC.
3. Confirm normal vehicle operation.

NOTICE
You must initially perform GDS ECM Update in Auto Mode.
If the ECM Update starts but then fails in Auto Mode, perform the update in Manual Mode to
recover.

!

WARNING

GDS Vehicle Battery Voltage Warning:
If voltage is below 12 volts as per the below GDS warning, then select Back and run the
engine at least 20 minutes to ensure an adequate battery state of charge for reliable update
results. Turn ignition back on, and then retry the ECU update again.

ECM ROM ID Information Table:
MODEL

DN8

TM

8AT

EMISSION

1.6T-GDI

IMMO.

+IMMO

PCM P/No.

39116-2M003

ROM ID
OLD

NEW

TDNA0NU06F00FE03
TDNA0NU06F10FE03
TDNA0NU06F20FE03
TDNA0NU06F30FE03

TDNA0NU06F40FE03

NOTE: +IMMO = Start Stop Button,

Manual Mode Password Information Tables:
EVENT #
#584

MENU
DN8A 1.6T-GDI +IMMO 39116-2M003

TSB #: 20-01-005H

PASSWORD
3705

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