NHTSA ID Number: 10200077
Manufacturer Communication Number: 21-EM-009H
TSB/Document Date: 2021-08-07
Summary
This bulletin provides additional service diagnostic information and repair procedures related to Electric Waste Gate Actuator (EWGA) equipped vehicles listed below. Refer to the applicable Engine Control / Fuel System sections in the Shop Manual, and then follow the procedures outlined in this bulletin whenever a vehicle with the following symptom(s) are being diagnosed: ➢ Check Engine Light illumination with EWGA related DTC. ➢ Intermittently high/low turbocharger boost pressures. ➢ Abnormal noise from the turbocharger. ➢ Reduced engine power.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
advanced full-synthetic 
- MaxLife Technology prevents engine breakdown with 40% better...
- Includes seal conditioners to reduce oil consumption and oil...
- Added detergents reduce sludge, corrosion, rust and deposits...
- Advanced friction-fighting additives help maximize...
- Meets or exceeds all requirements of ILSAC GF-6A, API SP...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: 21-EM-009H
Replacement Service Bulletin Number:
MFR Communication Date: 2021-07-26
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
GROUP
Engine
DATE
Technical Service Bulletin
July, 2021
NUMBER
21-EM-009H
MODEL(S)
Santa Fe Sport (AN)
Santa Fe (TM)
Sonata (LF/YF)
Veloster N (JSN)
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS
AND SERVICE PART REPLACEMENT GUIDELINES
SUBJECT:
This bulletin supersedes TSB 12-EM-003 to update the contents with the latest information.
Description: This bulletin provides additional service diagnostic information and repair procedures
related to Electric Waste Gate Actuator (EWGA) equipped vehicles listed below.
Refer to the applicable Engine Control / Fuel System sections in the Shop Manual, and then follow
the procedures outlined in this bulletin whenever a vehicle with the following symptom(s) are being
diagnosed:
➢
➢
➢
➢
Check Engine Light illumination with EWGA related DTC.
Intermittently high/low turbocharger boost pressures.
Abnormal noise from the turbocharger.
Reduced engine power.
Component Overview:
Actuation Shaft
EWG Motor/Actuator
o The EWG Motor/Actuator is
connected to an actuation shaft that
controls a swing valve, releasing
excess exhaust gases from the
turbocharger.
o Diversion of exhaust gases
regulates the rotating speed of the
turbocharger compressor turbine.
(Figure Example: JSN Turbocharger – Exhaust Manifold)
Assembly
Applicable
• Certain
• Certain
• Certain
• Certain
• Certain
Vehicles:
2015-2019MY
2011-2014MY
2013-2018MY
2019-2020MY
2019-2022MY
Sonata (LF) vehicles with 2.0L Turbo engines.
Sonata (YF) vehicles with 2.0L Turbo engines.
Santa Fe Sport (AN) vehicles with 2.0L Turbo engines.
Santa Fe (TM) vehicles with 2.0L Turbo.
Veloster N (JSN) vehicles with 2.0L Turbo engines.
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair
SUBJECT:
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
AND SERVICE PART REPLACEMENT GUIDELINES
DTC Information:
DTC
P2562
P2563
P2565
DESCRIPTION
Turbocharger Boost Control Position Sensor Circuit
Turbocharger Boost Control Position Sensor Circuit Range/Performance
Turbocharger Boost Control Position Sensor Circuit High
Parts Information:
MODELS
PART NAME
PART NUMBER
FIGURE
2.0T
13-16MY Santa Fe
Sport (AN)
Sonata (YF)
EWGA
39400-2G700
Refer to page 3
28231-2G411
Stud
28233-2GTA1
EWGA
39400-2GTA0
28231-2G411
EWGA
39400-2GTA0
28231-2C601
2.0T
17-18MY Santa Fe
Sport (AN)
Santa Fe (TM)
Sonata (LF)
2.0T
Veloster N (JSN)
NOTES
Refer to page 3
Replace
According to
Inspection
Results
Refer to page 3
Warranty Information:
MODEL
OP CODE
OPERATION
Sonata (YF)
28248R1A
EWGA
Replacement
Sonata (LF)
Veloster N (JSN)
28248R00
EWGA
Replacement
28248RQ0
Diagnostic Tool
Operation
Santa Fe Sport (AN)
Santa Fe (TM)
All Models Above
OP TIME
CAUSAL
PART
Refer to Please see
WEBLTS applicable
EWGA
for
part
current
number
LTS time
above for
applicable
model
0.3
NATURE CAUSE
CODE CODE
I3T
ZZ5
NOTE: Normal Warranty Applies.
NOTICE
If the EWGA has an internal issue that requires replacement, replace with applicable service
part listed in parts information. Do not replace the entire turbocharger assembly.
TSB #: 21-EM-009H
Page 2 of 8
SUBJECT:
SUBJECT:
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
Turbocharger Component Reference Information:
MODEL
PART NUMBER
FIGURE
28233-2GTA1
2.0T
Sonata (YF)
13-16MY Santa Fe
Sport (AN)
39400-2G700
28231-2G410
28231-2G411
2.0T
Sonata (LF)
Santa Fe (TM)
17-18MY Santa Fe
Sport (AN)
39400-2GTA0
28231-2GTA1
28231-2G411
39400-2GTA0
2.0T
Veloster N (JSN)
28231-2GTE0
28231-2C601
NOTE: Do not replace the entire turbocharger for an EWGA out of spec / inoperative condition.
EWG Motor Inspection Procedure:
1.
Turn ignition switch OFF.
2.
Disconnect the EWGA connector (A).
A
TSB #: 21-EM-009H
Page 3 of 8
SUBJECT:
SUBJECT:
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
3.
AND SERVICEpreventing
PART REPLACEMENT GUIDELINES
Check that there are no obstructions
EWGA motor movement.
4.
Measure resistance between the (+) and (-) terminals
of the motor and check that it is within specification.
5.
If the EWGA motor resistance is not within
specification, replace the EWGA with the service
procedure on page 7.
EWGA Position Sensor Inspection Procedure:
1.
Prepare the GDS to begin the EWGA Position
Sensor inspection and adjustment.
a) Ensure ignition switch is OFF.
b) Connect the 16-pin DLC cable from the VCI into
the vehicle’s 16-pin connector under the driver
side instrument panel.
c) Turn on the VCI and diagnostic terminal with the
ignition key in the ON position.
NOTICE
Do NOT start the engine. The turbocharger and its actuation mechanism should be cold to
allow proper inspection and adjustment procedures.
d) Choose VIN or Vehicle on the initial screen.
e) Enter vehicle information by pressing the VIN
Auto Detect button; entering the VIN or selecting
the vehicle model, model year, engine type, and
Engine Control as the system, and then click
OK.
2.
Choose Current Data, and then select Battery
Voltage after Ignition Key and Voltage Value for
Boost Pressure Actuator Position Control.
TSB #: 21-EM-009H
Page 4 of 8
SUBJECT:
SUBJECT:
3.
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
Choose the Graph and check the voltage.
➢ Turn ignition ON/OFF three times, and then
check the Max voltage value just as ignition ON
state is about to change to ignition OFF state and
vice versa. Refer to specified voltages on the
following page.
➢ If the EWGA position sensor is not within
specified voltage, perform the following EWGA
ADJUSTMENT PROCEDURE, and check that
the same fault code is detected again before
replacing the EWGA.
NOTICE
If the EWGA has an internal issue that requires replacement, replace with applicable
service part listed in parts information. Do not replace the entire turbocharger
assembly.
EWGA Adjustment Procedure:
1. Open the hood and securely support it.
!
CAUTION
B
Check that the engine is cool
enough to work on.
Loosen the turbocharger upper cover bolt (B) and
remove cover.
2.
Loosen the shaft end lock nut (C) and remove the
retaining clip (D). Save the retaining clip for later
use.
D
!
CAUTION
C
When loosening lock nut (C)
securely hold the waste gate
arm to prevent shaft bending.
TSB #: 21-EM-009H
Page 5 of 8
SUBJECT:
SUBJECT:
3.
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
AND SERVICE
PART REPLACEMENT
GUIDELINES
Adjust the shaft end by rotating
it clockwise
or
counterclockwise in ½ turn increments until voltage is
within specification range.
Then temporarily install the shaft end and tighten the
shaft end lock nut. Check the Voltage Value for
Boost Pressure Actuator Position Control by
using the inspection procedure with the GDS.
The EWGA must be in the fully closed position while
applying pressure on the EWGA lever to accurately
measure the output voltage while the engine is
cold.
➢ If output voltage > Max. specified Voltage:
Turn shaft ends clockwise (to shorten the
ends)
E
➢ If output voltage < Min. specified Voltage:
Turn shaft ends counterclockwise (to
lengthen the ends).
If unable to achieve proper voltage specification
when the engine is cold, it may be necessary to
rotate both EWGA shaft ends (E) to achieve proper
voltage.
4.
If the output voltage is not within specification, repeat step 3 in EWGA adjustment procedure
until voltage is within specification range.
5.
If output voltage is still not within specification after EWGA adjustment, replace EWGA with the
service procedure on the following page.
6.
If output voltage is within specification, reinstall all
the removed parts in reverse
order of removal.
Start engine and let run for a few minutes
while cycling the throttle, then shut off
engine.
Recheck voltage while applying
pressure on the EWGA lever to accurately
measure output voltage as indicated in the
photo on the right.
!
CAUTION
Engine components are hot and
can cause burns.
TSB #: 21-EM-009H
Page 6 of 8
SUBJECT:
SUBJECT:
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
Service Procedure:
1.
Turn off the engine and remove the negative terminal
from the battery.
NOTICE
➢ Be sure to record the radio presets prior to battery disconnection.
➢ For service on 2011-2014MY Sonata (YF) Vehicles, proceed to service
procedure step 4 and steps 6-10.
2.
Remove the air cleaner (F).
Refer to the shop manual section for complete
service procedure on pertaining vehicle:
Engine Mechanical System > Intake And Exhaust
System > Air Cleaner
NOTICE
F
Location and components of air
cleaner will vary depending on
engine specifications.
3.
Remove the intercooler inlet pipe and hose
assembly.
Refer to the shop manual section for complete
service procedure on pertaining vehicle:
Engine Mechanical System > Intake And Exhaust
System > Intercooler
4.
Disconnect the EWGA connector (G).
Refer to the shop manual section for complete
service procedure on pertaining vehicle:
Engine Control / Fuel System > Intake Engine
Control System > Electric WGT Control Actuator
G
TSB #: 21-EM-009H
Page 7 of 8
SUBJECT:
SUBJECT:
5.
THETA-II 2.0T TURBOCHARGER EWGA DIAGNOSIS AND SERVICE PART REPLACEMENT GUIDELINES
AND SERVICE
PARTinstallation
REPLACEMENT GUIDELINES
Remove the exhaust manifold
heat shield
bolt (H).
H
6.
Remove the snap-ring (I) and remove the shaft
linkage assembly (J).
J
NOTICE
I
Do not reuse snap-ring from EWGA
assembly.
7.
Remove EWGA mounting bolts (K) and replace
EWGA.
!
K
CAUTION
Do not carry EWGA by the actuation shaft
as permanent deformation can occur.
NOTICE
Tightening Torque: 9.4 lb-ft (12.75 Nm)
8.
Reinstall parts in reverse order of disassembly.
NOTICE
Reprogram the radio presets recorded from service procedure step #1 on page 7.
9.
Perform the EWGA shaft adjustment procedure on page 5 until EWGA voltage is within
acceptable range.
10. The service procedure is now complete.
TSB #: 21-EM-009H
Page 8 of 8
SUBJECT:
- Stay Updated with Lifetime Access: This obd2 scanner includes lifetime free software updates for all app service functions. With a single payment, enjoy full access to diagnostics, reset tools, and maintenance features — zero subscription fees. A budget-friendly choice for weekend mechanics, home car owners, and DIYers, supporting vehicles from 1996 onward. Come to us with your VIN to check compatibility.
- Full Bidirectional Control/Active Tests & Stable Wireless Connectivity: This car code reader features full bidirectional control, allowing you to send commands to the vehicle's ECU for active tests on components such as fuel pumps, injectors, A/C clutches, windows, sunroofs, and more. This car scanner diagnostic tool helps DIYers quickly diagnose and test vehicle parts, cutting down troubleshooting and repair time. With BT 4.0 wireless connectivity, you can enjoy cable-free diagnostics up to 33 feet. Stand in your garage and test windows, wipers, or even engine components—all without needing to move around your car.
- Portable Car Scanner with 26 Resets: Scheduled vehicle maintenance with the A30M car diagnostic scanner can keep your vehicle in peak condition and save you big on dealership trips. The XTOOL A30M obd2 scanner diagnostic tool features essential reset and relearn functions, such as Oil Reset, EPB Reset (Electronic Parking Brake Release), SAS, ABS Brake Bleeding, Throttle Body Relearn, Injector Coding, Crank Sensor Relearn, Headlight Adjustment, and Tire Size Reset. Note: Service functions may vary by vehicle model – check compatibility beforehand!
- Wide Compatibility CAN FD & FCA
Autoauth: This obd2 scanner diagnostic tool is compatible with over 85+ car brands from the U.S., Europe, and Asia, providing extensive coverage through a BT connection with your smartphone or iPad. Now upgraded to support the latest protocols, it includes FCA AutoAuth access for Chrysler, Jeep, Dodge, and Fiat (2018+), and supports CAN FD for GM (2020+) models, giving you greater access to newer vehicles and systems. Note: The FCA AutoAuth account is not included with the device. Users must register and pay separately through the official FCA AutoAuth website to access diagnostic functions for vehicles that require it. - Up to 8 Live Data Streams Graphing – Real-Time Graphing for Deeper Insight: This car scanner supports up to 8 live data streams simultaneously with intuitive, real-time graphing. Gain comprehensive insights into your vehicle’s performance, making it easier to spot issues, detect trends, and make informed diagnostic decisions with confidence.
- Save $500+/Year with Pro-Level Diagnostics -No Subscriptions: The Portable XTOOL Anyscan A30D OBD2 scanner diagnostic tool includes free lifetime software updates for all app service functions, without extra cost. With a single payment, enjoy full access to diagnostics, relearn scan tools, and maintenance features. A cost-effective, smart choice for car owners and DIY enthusiasts, compatible with vehicles from 1996 onward. Please provide the car VIN and the special functions you need in advance so that we can confirm compatibility
- Bi-Directional Control for Faster Troubleshooting: Unlike a basic code reader, the A30D bi directional scan tool sends commands directly to your vehicle’s ECU to actively test components like fuel pump, valves, wipers, windows, doors, sunroof, and headlamps right from your smartphone. See component responses in real time without disassembly—perfect for brake jobs, electrical issues, and hard-to-find problems. This bidirectional obd2 scanner helps pinpoint faults faster, reduce guesswork, and avoid replacing good parts. An efficient, easy-to-use car scanner diagnostic tool built for DIYers, home garage users, and small-shop technicians who want real two-way scanner, not just codes
- 19 Reset Functions for Routine Maintenance: The A30D car diagnostic scanner provides 19 relearn functions without extra charges, including EPB Reset for parking brake replacement, TPMS Reset after tire changes, ABS Auto Bleeding, Oil Reset, SAS Reset, BMS Reset, Throttle Relearn, Injector C0ding, Gear Learning, Crank/Crankshaft/Cam/Ckp Sensor Relearn Tool, Transmission Match, Seat Calibration, Airbag Repair and more. This XTOOL A30D automotive scanner diagnostic tool supports preventive care, helping extend vehicle life and reduce costly shop visits. Functions vary by vehicle make and year—plz confirm compatibility before purchase
- Stable BT Connection & All-System & 8 Pids Live Data: The A30D wireless OBD2 scanner delivers a fast and stable wireless connection up to 33 feet, letting you move freely around the vehicle without tangled cables. Pair with with Android 9.0+ and iOS 10.0+ devices to turn your phone into a mobile auto scanner—perfect for home garages, driveways, or on-the-spot repairs. This full system scanner for cars provides real-time access to all major modules, including Engine, Gearbox, ABS, SRS, AC and more. with clear graphs, meters, and up to 8 PIDs displayed at once. This car code reader makes system monitoring visual, simple, easy to understand, and offering data logging for playback and deeper
- Wide Compatibility with CAN-FD & FCA Support: The A30D car computer diagnostic reader works with most 1996 and newer vehicles with a standard OBD2 port, including for Ford, for GM, for Toyota, for Honda, for Nissan,for Hyundai etc, with ongoing updates covering more car models and functions later. It also supports newer communication protocols like CAN-FD and FCA AutoAuth (Personal AutoAuth account and active subscription required, not included with the device!for Chrysler, for Dodge, for Jeep, for Fiat models). It is a future-ready automotive scanner diagnostic tool for households with multiple vehicles or part-time techs. Coverage vary by cars, plz check the compatibility first
- 2026 Latest Version – Now Upgraded from 32GB to 64GB: XTOOL D7 obd2 scanner diagnostic tool with bidirectional is designed for DIY enthusiasts, professional mechanics. It now offers 64GB storage for smoother operation. Its 5000mAh battery (with 2500mAh 7.3V fast-charging) supports all-day use. With FCA, CAN FD, and DOIP protocol support, it covers more vehicle models and newer systems. A newly added battery voltage reading shows battery status before diagnostics, helping prevent low-voltage tests that could harm the vehicle. The V2.0 Diagnostic Report allows shops to personalize results with logos, customer details, and attachments to build trust and maintain records.
- Save $500+/Year with Pro-Level Diagnostics: Whether you're a DIYer, starting a repair business, or beginning work at an auto shop, XTOOL D7 car scanner offers advanced features typically found only in expensive professional OBD2 scanners - without the high price tag. With 4,000+ Active Tests & Bidirectional Pids, 36+ Special Functions, advanced module resets like SRS Reset, OE-level All-System Scan (one-click), FCA AutoAuth, CAN FD, DoIP, data export, and 8 PIDs graphing, the D7 auto scan tool covers 100,000+ vehicles (excluding Indian models). Includes 3-Year updates and supports the XV200 endoscope to detect em!ssions and intermittent issues.
- Full Bidirectional Advantage Over Other Code Readers & Scan Tools: The XTOOL D7 automotive scanner offers true bidirectional control plus advanced bidirectional PIDs, letting you send commands to components like A/C clutches, fuel injectors, windows, fans and more, while monitoring sensor responses live to catch elusive issues (even those without warning lights). Unlike budget bidirectional obd2 scanners limited to basic active tests,the D7 car fault scanner gives you full bidirectional control to run ABS pump tests, throttle position, turn fan on/off and solenoid tests, etc. No guessing, no extra fees—just smarter diagnostics
- OE-Level Full System Car Diagnostic Scanner with 8 Live Data Graphs: The XTOOL D7 is a pro-grade diagnostic tool that gives you full access to all vehicle systems—just like Snap on scanners & the factory scan tools, it delivers deep, accurate diagnostics you can trust. Easily view live data streams, retrieve freeze frame, and run active tests to pinpoint issues fast. With the ability to graph up to 8 PIDs at once, you can spot performance trends and troubleshoot like a pro. Whether you're a mechanic or car owner, with the D7 auto scanner you can stay ahead of problems and keep your vehicle running at its best
- High-value Automotive Scanner Diagnostic Tool with 36+ Special Function, Module Resets, Relearns, Calibrations, Adaptations & Initializations: XTOOL D7 diagnostic tool packs 36+ common & advanced maintenance, skip the $150 fee for battery registration after replacement, throttle body relearn after cleaning, or TPMS resets post-rotation, Auto bleed after the pad changes, or Electronic Parking Brake. Need to reset the transmission after towing? Crank sensor relearn for GM/for Dodge? Done. D7 also covered advanced functions like Ad~blue Reset, VIN Write, and many more professional OBD2 scanner functions that we can't list here. Text us your VIN + what you need, we’ll check the compatibility
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API