NHTSA ID Number: 10227830
Manufacturer Communication Number: TSB_CHA117
TSB/Document Date: 2022-12-20
Summary
TECHNICAL SERVICE BULLETIN: ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626 - This bulletin provides the procedure to update the software logic of the Anti-Lock Brakes/Electronic Stability Control (ABS/ESC) systems on some 2021-2023MY Seltos vehicles, which may experience multiple dash warning lights illuminated and DTC C1626, due to a possible yaw rate calculation error due to wheel alignment and tire diameter differences. This logic improvement will change the threshold sensitivity setting to account for these conditions.
GROUP
MODEL
CHA
2021-2023MY
Seltos (SP2)
NUMBER
DATE
117
December 2022
TECHNICAL SERVICE BULLETIN
SUBJECT:
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
This bulletin provides the procedure to update the software logic of the Anti-Lock Brakes/Electronic Stability
Control (ABS/ESC) systems on some 2021-2023MY Seltos vehicles, which may experience multiple dash
warning lights illuminated and DTC C1626, due to a possible yaw rate calculation error due to wheel alignment
and tire diameter differences. This logic improvement will change the threshold sensitivity setting to account
for these conditions. Follow the procedure outlined in this publication to apply the improved logic to the
‘ABS/ESC’ 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.
DTC Description:
C162604 - Implausible Control
Kia
Diagnostic System (KDS)
A printed copy is for reference only; publication information can be updated at any time.
Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical
publications are listed in ‘Service Releases’ and has the latest service information that has been released.
Page 2 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
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
645. SP2 ABS/ESC MIL ON DTC (C1626) JUDGMENT LOGIC IMPROVEMENT
NOTICE
•
Confirm a fully charged battery (12.3 volts or higher is necessary) is used or utilize a fully
charged jump starter box connected to the battery.
•
Ensure the KDS is sufficiently charged at 60% or higher prior to reflash.
•
All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise
stated.
•
Damaged VCI II units should not be used and promptly replaced.
•
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.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA117 Seltos (SP2) December 2022
Page 3 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
SUBJECT:
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.
ROM ID INFORMATION TABLE:
Upgrade Event #645
Model
Seltos (SP2)
System
ECU P/No.
ROM ID
Previous
New
58910 Q5100
1.00
1.01
1.02
58910 Q5200
1.00
1.01
1.02
58910 Q5300
1.00
1.01
1.02
58910 Q5400
1.00
1.01
1.02
58910 Q5450
1.00
1.01
1.02
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.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA117 Seltos (SP2) December 2022
Page 4 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
SUBJECT:
NOTICE
Prior to performing the ECU upgrade, be sure to check that the KDS is fully charged.
1.
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: CHA117 Seltos (SP2) December 2022
Page 5 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
SUBJECT:
5.
The KDS will check the server for recently
uploaded
Events
and
then
automatically
download Upgrade Event #645.
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 ABS/ESC system under the System
selection menu.
Touch ID Check (D) and confirm that the latest
D
update is available.
Select
Upgrade
Event
#645,
and
select
Upgrade to continue.
8.
The ECU upgrade will begin and the progress
of the upgrade will appear on the bar graph.
E
Upgrade part (1/2) (E) will download the
upgrade event to the VCI-II. Upgrade part (2/2)
(F) will upgrade the ECU.
CAUTION
F
Do not touch the system buttons (like
‘Back’,
‘Home’,
‘etc.’)
while
performing 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: CHA117 Seltos (SP2) December 2022
Page 6 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
SUBJECT:
9.
If a “Communication Fail” screen appears, verify
that the VCI-II and KDS are communicating
properly. Select ‘OK’ and restart the 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. Select
‘OK’ to continue.
11.
Once the upgrade is complete, select ‘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 normal 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: CHA117 Seltos (SP2) December 2022
Page 7 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
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
Password
5100
5200
5300
5400
5450
1.
Within the ECU Upgrade screen displayed, select Manual Mode.
2.
Select the ABS/ESC system under the System selection menu. Select Upgrade Event #645 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. Select OK.
7.
Once the upgrade is complete, select 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: CHA117 Seltos (SP2) December 2022
Page 8 of 8
ABS/ESC LOGIC IMPROVEMENT FOR DTC C1626
SUBJECT:
AFFECTED VEHICLE RANGE:
Model
Production Date Range
Seltos (SP2)
2021 – 2023MY
REQUIRED TOOL:
Tool Name
Figure
Comments
KDS
Kia Diagnostic System
WARRANTY INFORMATION:
N Code: I3A C Code: ZZ3
Model
SP2
Claim
Causal
Type
P/N
W
58910
Q5100
Qty.
0
Repair
Labor Op
Op
Replacement
Description
Code
Time
P/N
58910F11
0.3
M/H
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA117 Seltos (SP2) December 2022
N/A
Qty.
0
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TSB/Document ID: TSB_CHA117
Replacement Service Bulletin Number:
MFR Communication Date: 2022-12-15
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
MFR Component System:
MFR Component Subsystem:
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