NHTSA ID Number: 10233643
Manufacturer Communication Number: TSB_ELE285
TSB/Document Date: 2023-04-06
Summary
TECHNICAL SERVICE BULLETIN: MQ4 P/HEV GAMMA 1.6L T-GDI ECM & HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION: This bulletin provides the procedure to update the software logic of the 'Engine' and Hybrid
Control Unit Low DC-DC Converter 'HCULDC' systems on certain 2021-2023MY Sorento HEV, PHEV (MQ4 P/HEV) w/ Gamma 1.6L T-GDI vehicles produced from July 1, 2021 through November 3, 2022. The affected vehicles may exhibit a MIL 'ON' with DTCs stored (P144100, P1A7795, P00B700, P211800, P040100, P023600, P029900, P2B6000) due to the engine oil becoming diluted with fuel and/or moisture caused by repeated short drive trips, in low outdoor temperature (32 degree F-) environments.
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TSB/Document ID: TSB_ELE285
Replacement Service Bulletin Number:
MFR Communication Date: 2023-03-06
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, GASOLINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
GROUP
MODEL
ELE
2021-2023MY
Sorento HEV, PHEV
(MQ4 P/HEV)
w/Gamma 1.6L T-GDI
NUMBER
DATE
285
March 2023
TECHNICAL SERVICE BULLETIN
MQ4 P/HEV GAMMA 1.6L T-GDI ECM &
SUBJECT:
HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION
This bulletin provides the procedure to update the software logic of the ‘Engine’ and Hybrid Control Unit Low
DC-DC Converter ‘HCULDC’ systems on certain 2021-2023MY Sorento HEV, PHEV (MQ4 P/HEV) w/ Gamma
1.6L T-GDI vehicles produced from July 1, 2021 through November 3, 2022. The affected vehicles may exhibit
a MIL ‘ON’ with DTCs stored (P144100, P1A7795, P00B700, P211800, P040100, P023600, P029900,
P2B6000) due to the engine oil becoming diluted with fuel and/or moisture caused by repeated short drive
trips, in low outdoor temperature (32℉-) environments. Follow the procedure outlined in this publication to
apply the improved logic to both the ‘Engine’ and ‘HCULDC’ 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 tables on pages 3-5 of this bulletin. Before conducting the procedure, verify
that the vehicle is included in the list of affected VINs.
DTC Description:
P144100: Evap System Downstream Purge Control Valve Hose Off
P1A7795: Check Generator Belt
P00B700: Engine Coolant Flow Low/Performance
P211800: Throttle Actuator Control Motor Current Range/Performance
P040100: EGR ‘A’ Flow Insufficient Detected
P023600: Turbocharger/Supercharger System Boost Sensor ‘A’ Circuit Range Perform
P029900: Turbocharger/Supercharger System Underboost
P2B6000: Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance
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 11
MQ4 P/HEV GAMMA 1.6L T-GDI ECM &
SUBJECT:
HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION
ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
625. MQ4 HEV GAMMA 1.6TGDI ECM UPGRADE FOR OIL DILUTION (ECM)
626. MQ4 HEV GAMMA 1.6TGDI ECM UPGRADE FOR OIL DILUTION (HCULDC)
627. MQ4 PHEV GAMMA 1.6TGDI ECM UPGRADE FOR OIL DILUTION (ECM)
628. MQ4 PHEV GAMMA 1.6TGDI ECM UPGRADE FOR OIL DILUTION (HCULDC)
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 GDS 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: ELE285 Sorento P/HEV (MQ4 P/HEV) March 2023
Page 3 of 11
MQ4 P/HEV GAMMA 1.6L T-GDI ECM &
SUBJECT:
HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION
ROM ID INFORMATION TABLE:
Upgrade Event #625 (HEV ECM)
Model
EM
System
IMMO
ECU P/No.
ROM ID
Previous
New
JMQ41NS06F00KC60
JMQ41NS06F10KC70
Yes
39131 2MME0
JMQ41NS06F20LC00
JMQ41NS06F390C00
JMQ41NS06F69BC00
JMQ41NS06F496C00
21MY
JMQ41NS06F59BC00
MQ4
HEV
JMQ41NS06E00KC60
(2WD)
JMQ41NS06E10KC70
No
39133 2MMC0
JMQ41NS06E20LC00
JMQ41NS06E390C00
JMQ41NS06E69BC00
JMQ41NS06E496C00
JMQ41NS06E59BC00
Gamma
1.6L T-GDI
JMQ41NS06F00KF60
JMQ41NS06F10KF70
ECM
Yes
39131 2MMF0
JMQ41NS06F20LF00
JMQ41NS06F390F00
JMQ41NS06F69BF00
JMQ41NS06F496F00
21MY
JMQ41NS06F59BF00
MQ4
HEV
JMQ41NS06E00KF60
(4WD)
JMQ41NS06E10KF70
No
39133 2MMD0
JMQ41NS06E20LF00
JMQ41NS06E390F00
JMQ41NS06E69BF00
JMQ41NS06E496F00
JMQ41NS06E59BF00
22MY
MQ4
HEV
(2WD)
JMQ42NS06F091C00
Yes
39131 2MME1
JMQ42NS06F196C00
JMQ42NS06F39BC00
JMQ42NS06F29BC00
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: ELE285 Sorento P/HEV (MQ4 P/HEV) March 2023
Page 4 of 11
MQ4 P/HEV GAMMA 1.6L T-GDI ECM &
SUBJECT:
HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION
Upgrade Event #625 (HEV ECM) (Continued)
Model
EM
System
IMMO
ROM ID
ECU P/No.
Previous
22MY
New
JMQ42NS06E091C00
MQ4
No
HEV
39133 2MMC1
JMQ42NS06E196C00
JMQ42NS06E39BC00
JMQ42NS06E29BC00
(2WD)
JMQ42NS06F091F00
Yes
39131 2MMF1
JMQ42NS06F196F00
JMQ42NS06F39BF00
JMQ42NS06F29BF00
22MY
MQ4
HEV
(4WD)
Gamma
1.6L T-GDI
JMQ42NS06E091F00
ECM
No
39133 2MMD1
JMQ42NS06E196F00
JMQ42NS06E39BF00
JMQ42NS06E29BF00
JMQ43NS06F09AC00
Yes
39131 2MME2
No
39133 2MMC2
JMQ43NS06F29BC00
JMQ43NS06F19BC00
23MY
MQ4
HEV
(2/4WD)
JMQ43NS06E09AC00
JMQ43NS06E29BC00
JMQ43NS06E19BC00
Upgrade Event #626 (HEV HCULDC)
Model
EM
System
22MY
ECU P/No.
ROM ID
Previous
New
36600 3DEG2
GMQC2N6HNS0-C720
GMQC2N6HNS1-C720
36600 3DEG0
GMQC2N6HNS0-C740
GMQC2N6HNS1-C740
36600 3DBG0
GMQC0N6HNS2-C720
GMQC0N6HNS3-C720
MQ4
HEV
Gamma
1.6L T-GDI
20-21MY
MQ4 HEV
HCULDC
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: ELE285 Sorento P/HEV (MQ4 P/HEV) March 2023
Page 5 of 11
MQ4 P/HEV GAMMA 1.6L T-GDI ECM &
SUBJECT:
HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION
Upgrade Event #627 (PHEV ECM)
Model
EM
System
IMMO
ECU P/No.
ROM ID
Previous
New
QMQ42NS06F091F00
Yes
39131 2MMH0
22MY
QMQ42NS06F193F00
QMQ42NS06F296F00
QMQ42NS06F49BF00
QMQ42NS06F39BF00
MQ4
PHEV
(4WD)
QMQ42NS06E091F00
No
Gamma
1.6T-GDI
39133 2MMH0
QMQ42NS06E193F00
QMQ42NS06E296F00
QMQ42NS06E49BF00
QMQ42NS06E39BF00
ECM
Yes
39131 2MMH1
No
39133 2MMH1
QMQ43NS06F09AF00
QMQ43NS06F19BF00
QMQ43NS06F29BF00
23MY
MQ4
PHEV
(4WD)
QMQ43NS06E09AF00
QMQ43NS06E19BF00
QMQ43NS06E29BF00
Event Upgrade #628 (PHEV HCULDC)
Model
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