23-EE-009H

GROUP
NUMBER
23-EE-009H
ENGINE
ELECTRICAL
DATE
Technical Service Bulletin
MODEL(S)
AUGUST 2023
SONATA (DN8a)
EGR VALVE REPLACEMENT FOR DTC P0401
SUBJECT:
Description: This bulletin provides warranty procedure for EGR Valve replacement related to DTC
P0401 EGR Flow Insufficient on 2020 and 2021MY Sonata (DN8a) equipped with 2.5 GDI Vehicles.
Applicable Vehicles:
• 2020MY, 2021MY Sonata (DN8a) equipped with 2.5L GDI Engine produced from
10/22/2019-10/01/2020
Parts Information:
MODEL
2020MY Sonata
(DN8a)
PART NAME
PART NUMBER
QTY
VALVE ASSY-EGR
28400-2S000FFF
1
GASKET - EGR PIPE
28493-2S020
1
GASKET – EGR PIPE
28493-2S030
1
GASKET – EGR PIPE
28493-2S040
1
GASKET – EGR COOLER
28493-2S050
1
GASKET - CATALYST CASE
28535-2SAD0
1
GASKET - EXHAUST PIPE
28751-3S100
2
Warranty Information:
Model
Op. Code
Operation
Op.
Time
Casual Part
Nature
Code
Cause
Code
Sonata
(DN8a)
28400F00
Replace EGR Valve
2.4 M/H
28400-2S000
I3T
ZZ1
NOTE 1: Normal warranty applies.
NOTE 2: Submit claim on Claim Entry Screen as “Warranty” type.
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
EGR VALVE REPLACEMENT FOR DTC P0401
SUBJECT:
NOTE 3: This TSB includes Repair validation photos. Op times include VIN, Mileage, and Repair
validation photos as outlined in the Digital Documentation Policy.
NOTE 4: The incident parts are subject to callback through the normal Warranty Technical Center
(WTC) parts return process. Claim is subject to debit if the part is not returned.
NOTE 5: If a part is found in need of replacement while performing this TSB and the affected part is
still under warranty, submit a separate 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
Service Procedure:
STUI
This TSB includes Repair validation photos. Refer to the latest Digital Documentation Policy for
requirements.
1.
Use GDSM to verify DTC P0401 EGR Flow
Insufficient. If DTC P0401 is present,
proceed to replace the EGR Valve.
Refer to the shop manual section for
complete service procedure:
Engine Control / Fuel System → Engine
Control System → Electric EGR Control
Valve
2.
STUI
Using STUI, take a photo of the new
EGR Valve with the last 6 digits of the
VIN and the date of repair on a piece
of paper.
Upload the photo to STUI.
3
Clear any ECM DTC(s) after the part
replacement.
Start the engine to confirm proper operation
of the vehicle.
TSB #: 23-EE-009H
Page 2 of 2
SUBJECT: