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NHTSA ID Number: 10216510

Manufacturer Communication Number: TSB_ENG227_R2

TSB/Document Date: 2022-08-03


Summary

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181 ECM LOGIC IMPROVEMENT (SA463) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to improve the logic of the Engine Control Module (ECM) on some 2020-2021MY Soul (SK3) vehicles and 2021MY Seltos (SP2) vehicles produced in the date ranges shown below, equipped with NU 2.0L ATK engines, which may exhibit engine starting related DTC P0605 and/or thermostat related DTC P2181.


GROUP
ENG

MODEL
2020-2021MY
Soul (SK3)
2021MY
Seltos (SP2)

NUMBER
227 (Rev 2, 07/14/2022)

DATE
February 2021

TECHNICAL SERVICE BULLETIN
SUBJECT:

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)
d

 NOTICE
This bulletin has been revised to include additional information. New/revised sections
of this bulletin are indicated by a black bar in the margin area.
This bulletin provides the procedure to improve the logic of the Engine Control Module (ECM) on
some 2020-2021MY Soul (SK3) vehicles and 2021MY Seltos (SP2) vehicles produced in the date
ranges shown below, equipped with NU 2.0L ATK engines, which may exhibit engine starting
related DTC P0605 and/or thermostat related DTC P2181. To correct this concern, follow the
flowchart on page 2, then perform the Coolant Discharge procedure using KDS (for DTC P2181)
if applicable, and/or apply the improved logic to the Engine system using the KDS ECU Upgrade
function as described in this bulletin. For confirmation that the latest reflash has been applied to
a vehicle you are working on, verify the ROM ID using the table on page 8 of this bulletin. Before
conducting the procedure, verify that the vehicle is included in the list of affected VINs.
DTC P0605: Internal Control Module Read Only Memory (ROM) Error
DTC P2181: Thermostat Continuous Monitor Error
Model
Soul (SK3)
Seltos (SP2)

Event No.

Production Date Range

519

November 24, 2018 to October 24, 2020

618

October 25, 2020 to January 4, 2021

520

November 20, 2019 to October 15, 2020

619

October 16, 2020 to January 13, 2021

 NOTICE
A Service Action is a repair program without customer notification that is performed
during the warranty period. Any dealer requesting to perform this repair outside the
warranty period will require DPSM approval.
Repair status for a VIN is provided on WebDCS (Service → Warranty Coverage →
Warranty Coverage Inquiry → Campaign Information). Not completed Recall / Service
Action reports are available on WebDCS (Consumer Affairs → Not Completed Recall
→ Recall VIN → Select Report), which includes a list of affected vehicles.
This issue number is SA463.
Printed TSB copy is for reference only; information may be updated at any time.
Always refer to KGIS for the latest information.
Circulate To:

X General Manager

X Service Advisors

X Technicians

X Service Manager

X Parts Manager

X Body Shop Manager  Fleet Repair

Page 2 of 15
SUBJECT:

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

Service Procedure Flowchart:

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SA463 (Rev 2) Soul (SK3), Seltos (SP2) February 2021

Page 3 of 15
SUBJECT:

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

Coolant Discharging Mode Procedure:

NOTE: If DTC P2181 has been stored, follow the procedure outlined below.

If DTC P2181 is not stored, go directly to the ‘ECU Upgrade Procedure’ on page 7.
Required Conditions needed before starting the Coolant Discharging Mode Procedure

1.

Transmission: Park (P) position / Parking Brake: ON

2.

Engine: Idling

3.

Vehicle speed: 0 mph

4.

Heater: OFF

5.

Conduct procedure indoors to raise temperature of coolant
NOTE: If necessary, conduct vehicle soaking to lower the vehicle temperature

1.

Connect the VCI-II to the OBD-II
connector, located under the driver’s side
of the instrument panel.

2.

With the ignition ON, turn ON the KDS
tablet. Select KDS from the home screen.

3.

Confirm communication with VCI (A) and
then configure the vehicle (B) using the
AUTO VIN (C) feature.

B
A

C

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SA463 (Rev 2) Soul (SK3), Seltos (SP2) February 2021

Page 4 of 15
SUBJECT:

2.

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

From the Systems / Engine Control menu,
select ‘Coolant Discharging Mode of
Electric Thermostat’ (D).

 NOTICE
The KDS screenshot(s) shown
are from a 2021MY Seltos (SP2).
Your screens may be displayed
slightly different.

3.

D

Select ‘OK’.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SA463 (Rev 2) Soul (SK3), Seltos (SP2) February 2021

Page 5 of 15

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

SUBJECT:

4.

Confirm the following conditions listed
below are present, then select ‘OK’.

1.

Transmission: Park (P) position /
Parking Brake: ON

2.

Engine: Idling

3.

Coolant temperature: 32 - 78°F

4.

Vehicle speed: 0 mph

5.

Heater: OFF

6.

Conduct procedure indoors to raise
temperature of coolant

NOTE: If necessary, conduct vehicle
soaking to lower vehicle temperature.

5.

Wait for 180 seconds (3 minutes).

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SA463 (Rev 2) Soul (SK3), Seltos (SP2) February 2021

Page 6 of 15
SUBJECT:

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

6.

When the procedure is completed select
‘OK’.

7.

Proceed to ‘ECU Upgrade Procedure’
on page 7.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SA463 (Rev 2) Soul (SK3), Seltos (SP2) February 2021

Page 7 of 15
SUBJECT:

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
519. [November 24, 2018 to October 24, 2020]
SK3 NU 2.0ATK ENGINE MIL ON DTC JUDGMENT LOGIC IMPROVEMENT
618. [October 25, 2020 to January 4, 2021]
SK3 NU 2.0ATK ENGINE MIL ON DTC JUDGMENT LOGIC IMPROVEMENT
520. [November 20, 2019 to October 15, 2020]
SP2 NU 2.0ATK ENGINE MIL ON DTC JUDGMENT LOGIC IMPROVEMENT
619. [October 16, 2020 to January 13, 2021]
SP2 NU 2.0ATK ENGINE MIL ON DTC JUDGMENT LOGIC IMPROVEMENT

 NOTICE







A fully charged battery is necessary before the ECU upgrade can take place. It is
recommended that a battery charger is used in ECU mode during the reflash or the
use of a fully charged jump startereBay logo box connected to the battery.
Ensure the KDS is sufficiently charged at 50% or higher prior to reflash.
All ECU upgrades must be done with the ignition key in the ‘ON’ position.
Be careful not to disconnect the VCI-II connected to the vehicle during the ECU
upgrade procedure.
DO NOT start the engine during ECU upgrade.
DO NOT turn the ignition key ‘OFF’ or interrupt the power supply during ECU
upgrade.
When the ECU upgrade is completed, turn the ignition ‘OFF’ and wait 10 seconds
before starting the engine.
ONLY use approved ECU upgrade software designated for the correct model and
model year.

 IMPORTANT
It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the
ECU Part Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the
parts label affixed to the ECU.

 NOTICE
Before attempting an ECU upgrade on any KiaeBay logo model, make sure to first determine
whether the applicable model is equipped with an immobilizer
security system.
Failure to follow proper procedures may cause the PCM to become inoperative after
the upgrade and any claims associated with this repair may be subject to chargeback.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: SA463 (Rev 2) Soul (SK3), Seltos (SP2) February 2021

Page 8 of 15
SUBJECT:

SERVICE ACTION: MIL ON DTC P0605 AND/OR P2181
ECM LOGIC IMPROVEMENT (SA463)

ROM ID INFORMATION TABLE:
Upgrade Event #519 (SK3) (Production date range: November 24, 2018 – October 24, 2020)
Model

MY

TM

IMMO

ECU P/No.

New

39171 2ELC0

No

39173 2ELC0

Yes

39171 2ELD0

No

39173 2ELD0

Yes

39171 2ELC1

SKBSP2KS6B2A

SKBSP2KS6B7A

No

39173 2ELC1

SKBSP2JS6B2A

SKBSP2JS6B7A

Yes

39171 2ELD1

SKBUP2AS6B2A

SKBUP2CS6B7A

No

39173 2ELD1

SKBUP2US6B2A

SKBUP2VS6B7A

6MT

SK3
(Nu 2.0L
ATK)

Previous
SKASP2KS6B0A
SKASP2KS6B1A
SKASP2JS6B0A
SKASP2JS6B1A
SKAUP2AS6B0A
SKAUP2AS6B1A
SKAUP2AS6B1B
SKAUP2US6B0A
SKAUP2VS6B1A
SKAUP2VS6B1B

Yes
CVT

2020

ROM ID

SKASP2KF6B7A
SKASP2JF6B7A
SKAUP2AF6B7A

SKAUP2UF6B7A

CVT
2021
6MT

Upgrade Event #618 (SK3) (Production date range: October 25, 2020 – January 4, 2021)
Model

MY

TM

IMMO

ECU P/No.

ROM ID
Previous

New

Yes

39171 2ELC1

SKBSP2KS6B2A

SKBSP2KF6B7A

No

39173 2ELC1

SKBSP2JS6B2A

SKBSP2JF6B7A

Yes

39171 2ELD1

SKBUP2AS6B2A

SKBUP2CF6B7A

No

39173 2ELD1

SKBUP2VS6B2A

SKBUP2VF6B7A

CVT
SK3
(Nu 2.0L
ATK)

2021
6MT

Upgrade Event #520 (SP2) (Production date range: November 20, 2019 – October 15, 2020)
Model
SP2
(Nu 2.0L
ATK)

MY

TM

IMMO

12

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TSB/Document ID: TSB_ENG227_R2

Replacement Service Bulletin Number:

MFR Communication Date: 2022-07-14

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ELECTRICAL SYSTEM

MFR Component System:

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