GROUP
CHA

NUMBER
110

MODEL
2021MY
Seltos (SP2)
Soul (SK3)
DATE
April 2021

TECHNICAL SERVICE BULLETIN
SUBJECT:

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

This bulletin provides the procedure to improve the software logic of the Electronic Power Steering
(EPS) system on some 2021MY Seltos (SP2) and Soul (SK3) vehicles produced in the date
ranges shown below, which may exhibit an MIL on with DTC C160404 during the system start up
diagnostic check. To correct this concern, apply the improved logic to the EPS 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 3 of
this bulletin.
DCT Description:
C160404 - ECU Hardware Error
Model

Production Date Range

Seltos (SP2)

January 20, 2021 to February 10, 2021

Soul (SK3)

January 28, 2021 to February 8, 2021

Kia Diagnostic System (KDS)

 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 SA466.
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 9

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

SUBJECT:

ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
536. SK3 EPS MIL ON DTC (C160404) JUDGMENT LOGIC IMPROVEMENT
538. SP2 EPS MIL ON DTC (C160404) JUDGMENT LOGIC IMPROVEMENT

 NOTICE
•
•
•
•
•
•

•
•

Confirm a fully charged battery with 12.3 volts or higher is necessary or the use of
a fully charged jump starter box connected to the battery.
Ensure the KDS GDS is sufficiently charged at 60% or higher prior to reflash.
All ECU upgrades must be done with the ignition key in the ‘ON’ position unless
otherwise stated.
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 application.

 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 Kia 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: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 3 of 9

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

SUBJECT:

ROM ID INFORMATION TABLE:
Upgrade Event #536
Model

System

ECU P/No.

SK3

EPS

56300 K0000
56300 K0200
56300 K0300

ROM ID
Previous

New

ASY-HK045616-S2V00DA07_0221

ASY_HK045616-S2V00EA03_0240

Upgrade Event #538
Model

System

ECU P/No.

SP2

EPS

56300 Q5200
56300 Q5600
56300 Q5800

ROM ID
Previous

New

ASY-HK045616-S2V02EB02_0227

ASY-HK045616-S2V02EB03_0242

To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle's ECM ROM
ID and reference the Information Table as necessary.

 NOTICE
Prior to performing the ECU upgrade, be sure to check that the KDS is fully charged.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 4 of 9
SUBJECT:

1.

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

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

 NOTICE
The ECU upgrade function on
KDS operates wirelessly. It is not
necessary to perform the
upgrade via USB cable.

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
4.

Select ECU Upgrade.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 5 of 9
SUBJECT:

5.

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

The KDS will check the server for recently
uploaded Events and then automatically
download Upgrade Event #536 (SK3)
OR #538 (SP2).

 NOTICE
The vehicle must be identified in
Vehicle Selection to download
an Event for that vehicle.

6.

KDS
screenshot
shown
above
is
for
demonstration purposes only. Events shown in
screenshot are not applicable to this bulletin.

Select Auto Mode.

CAUTION
Do NOT attempt to perform a
Manual Mode upgrade UNLESS
Auto Mode fails. Always follow
the instructions given on the
KDS in either Auto or Manual
mode.
7.

Select the EPS system under the System
selection menu.
Touch ID Check (D) and confirm that the
latest update is available.

D

Select Upgrade Event #536 (SK3) OR
#538 (SP2). and select Upgrade to
continue.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 6 of 9
SUBJECT:

8.

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

The ECU upgrade will begin and the
progress of the upgrade will appear on the
bar graph. Upgrade part (1/2) (E) will
download the upgrade event to the VCI-II.
Upgrade part (2/2) (F) will upgrade the
ECU.

CAUTION

E

F

Do not touch the system buttons
(like ‘Back’, ‘Home’, ‘etc.’) while
performing ECU Upgrade.

9.

If a “Communication Fail” screen appears,
verify that the VCI-II and KDS are
communicating properly. Touch OK and
restart the procedure from step 4.

 NOTICE
If an error notice continues to
appear or if the upgrade cannot
be
performed,
DO
NOT
disconnect
the
KDS/VCI-II.
Contact GIT America Help Desk
at (888) 542-4371 or Techline.
10. When instructed on the KDS, turn the
ignition OFF for ten (10) seconds then
back on. Touch OK to continue.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 7 of 9
SUBJECT:

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

11. Once the upgrade is complete, touch OK
to finalize the procedure.

12. When prompted, select YES to check for
Diagnostic Trouble Codes (DTC) and
erase any DTCs stored such as EPS,
ESC, and TPMS that may have been set
during the upgrade.

13. Start the engine to confirm proper
operation of the vehicle.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 8 of 9

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

SUBJECT:

Manual Upgrade Procedure:

 NOTICE
The manual upgrade should ONLY be performed if the automatic upgrade fails.
If the automatic upgrade fails, turn the ignition OFF for about 10 seconds then place it
back in the ON position to reset the control unit BEFORE performing manual upgrade.
See table below for Manual Mode passwords.

Manual Mode ECU Upgrade Passwords
Menu
SK3 EPS : 56300-K0000/200/300
SP2 EPS : 56300-Q5200/600/800

Password
0056
5280

1.

Within the ECU Upgrade screen displayed, select Manual Mode.

2.

Select the EPS system under the System selection menu. Select Upgrade Event #536
(SK3) OR #538 (SP2) and select Upgrade to continue.

3.

Select the appropriate control unit part number with reference to the ROM ID Information
Table on page 3, and select OK.

4.

Enter the appropriate password from the Manual Mode password table above and select
OK.

5.

The upgrade will begin and the progress of the upgrade will appear on the bar graph.

6.

When instructed on the KDS, turn the ignition OFF for ten (10) seconds then back on. Touch
OK to continue.

7.

Once the upgrade is complete, touch OK to finalize the procedure.

8.

When prompted, select YES to check for Diagnostic Trouble Codes (DTC) and erase any
DTCs stored such as EPS, ESC, and TPMS that may have been set during the upgrade.

9.

Start the engine to confirm proper operation of the vehicle.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021

Page 9 of 9

SERVICE ACTION: EPS LOGIC IMPROVEMENT
FOR DTC C160404 (SA466)

SUBJECT:

AFFECTED VEHICLE RANGE:
Model

Production Date Range

Seltos (SP2)

January 20, 2021 to February 10, 2021

Soul (SK3)

January 28, 2021 to February 8, 2021

WARRANTY INFORMATION:
N Code: N99 C Code: C99
Claim
Type

Model

Causal P/N

SP2

56310 Q5200

V
SK3

56310 K0000

Qty.

Repair
Description

Labor Op
Code

Op
Time

Replacement
P/N

Qty.

0

(SA466)
EPS Logic
Improvement

210025R0

0.3
M/H

N/A

0

 NOTICE
VIN inquiry data for this repair is provided for tracking purposes only. Kia retailers
should reference SA466 when accessing the WebDCS system.

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

TSB: SA466 Seltos (SP2), Soul (SK3) April 2021