23-EE-007H

GROUP
ENGINE ELECTRICAL
SYSTEMS
DATE
SUBJECT:
23-EE-007H
MODEL(S)
APRIL, 2023
Technical Service Bulletin
NUMBER
SANTA FE
HYBRID (TM
HEV) &
SANTA FE
PLUG-IN (TM
PHEV)
ECU UPGRADE – G2T-GDI DTC MISDIAGNOSIS & OIL DILUTION
IMPROVEMENT
TSB 23-EE-007H supersedes 23-FL-001H to revise the service procedure with the latest GDS
events and revise the warranty information & op time information.
DESCRIPTION: This bulletin provides information related to the Engine Control Module (ECM)
software update for Santa Fe Plug-in Hybrid (TM PHEV) and Santa Fe Hybrid (TM HEV) vehicles to
improve the following DTC and symptoms:
1. P1441 (EVAP System Flow During Non-Purge Condition)
a. Misdiagnosis due to insufficient margin of pressure deviation when driving at constant
speed with low engine load
i. Logic improvement to eliminate misdiagnosis
2. P1A77 (Check Generator Belt)
a. Misdiagnosis due to poor synchronization release when the engine is stopped
i. Logic improvement to release synchronization even if CAM signal is active
when engine is stopped
3. P00B7 (Engine Coolant Flow Low/Performance)
a. ITM control error due to temporary ball valve stuck
i.
Improvement to ITM cleaning logic (1 time -> 5 times)
4. P2118 (Throttle Actuator Control Motor Current Range/Performance) / P0401 (EGR Flow
Insufficient Detected)
5. P0236 (Turbocharger System Boost Sensor A Circuit Range/Performance) / P0299
(Turbocharger underboost)
a. Failure due to EGR condensate freezing
i. Change the EGR Flow diagnosis condition (-40℃ → -7℃)
6. Oil Dilution: Some vehicles may experience increased oil consumption and white smoke due to
the diluting of engine oil with fuel because of the frequent transition between EV ↔ Engine
mode during the winter season
a. Modify fuel injection strategy below 10℃ and add oil heating function based on the
driving pattern.
7. P2B60 (Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance)
a. Ball valve stuck escape mode logic improvement
i. Change the Mas. Angle in the reverse direction when operating the escape
mode (5 → 35 degrees)
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
ECU UPGRADE – G2T-GDI DTC MISDIAGNOSIS & OIL DILUTION IMPROVEMENT
SUBJECT:
FOR 21~22MY Santa Fe Hybrid (TM HEV): The HCU Update should be updated right after the ECU
Update is completed. Please reference Campaign T9U TSB 23-01-032H - HCU UPGRADE - TM
HEV IMMOBILIZER IMPROVEMENT
FOR 22-23MY Santa Fe Plug-in Hybrid (TM PHEV): The HCU Update should be updated at the
same time. Please reference F/Fix TSB 23-EE-004H - HCU UPGRADE - TM PHEV G2T OIL
DILUTION IMPROVEMENT
FOR 23MY Santa Fe Hybrid (TM HEV): No action required to update the HCU. These models
already have the updated software.
APPLICABLE VEHICLES: All 21-23MY Santa Fe Hybrid (TM HEV) & 22-23MY Santa Fe Plug-in
Hybrid (TM PHEV) equipped with 1.6L Gamma II turbocharged engines.
GDS INFORMATION: System Selection: Engine:
Event #
Description
TM
(P)HEV
GAMMA2
T-GDI
DTC
MISDIAGNOSIS
& OIL DILUTION IMPROVEMENT (ECU)
#909
WARRANTY INFORMATION:
Model
Santa Fe Hybrid
(TM HEV) &
Santa Fe Plug-in
(TM PHEV)
Op Code
Operation
39131F21
ECU
UPGRADE
Op
Time
Causal Part
0.3 M/H
39131-2MTC0 (21-22MY TM HEV)
39131-2MTL0 (23MY TM HEV)
39131-2MTF0 (22-23MY TM
PHEV)
Nature Cause
Code
Code
I3T
ZZ3
NOTE 1: Normal Warranty applies.
NOTICE
To verify the vehicle is affected, be sure to check the version of the vehicle’s ECU
ROM ID with reference to the ECU ROM ID TABLE below before attempting to upgrade
the control unit software.
You must attach a 12V battery charger to the vehicle before performing GDS ECU
Update. This is to prevent a battery saver condition from occurring since Santa Fe
Plug-in Hybrid uses a smaller battery.
You must initially perform GDS ECU Update in Auto Mode.
 If the ECU Update starts but then fails in Auto Mode, disconnect the battery cables and
touch the cables together for one minute. Reconnect the battery cables, attach a battery
charger and perform the update in Manual Mode to recover.
 Refer to the General Instructions found in TSB 15-GI-001 (GDS Mobile).
TSB #: 23-EE-007H
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SUBJECT:
ECU UPGRADE – G2T-GDI DTC MISDIAGNOSIS & OIL DILUTION IMPROVEMENT
SUBJECT:
SERVICE PROCEDURE:
1. After the ECU Update is completed, check for Diagnostic Trouble Codes and erase
any DTC.
ECU ROM ID TABLE:
Model
Part Number
39131-2MTC0
ROM ID
Old
JTM-1NS06F00CF40
New
JTM-1NS06F183F00
JTM-1NS06F388F00
JTM-1NS06F288F00
Santa Fe
Hybrid
(TM HEV)
JTM-2NS06F080F00
39131-2MTC1
JTM-2NS06F180F00
JTM-2NS06F283F00
JTM-2NS06F488F00
JTM-2NS06F388F00
39131-2MTC2
JTM-3NS06F087F00
JTM-3NS06F188F00
JTM-3NS06F288F00
QTM-2NS06F080F00
QTM-2NS06F181F00
Santa Fe
Plug-in
(TM PHEV)
39131-2MTF0
QTM-2NS06F283F00
QTM-2NS06F588F00
QTM-2NS06F388F00
QTM-2NS06F488F00
39131-2MTF1
QTM-3NS06F087F00
QTM-3NS06F188F00
QTM-3NS06F288F00
MANUAL UPDATE: If the ECU Update starts but then fails in Auto Mode, perform the
update in Manual Mode to recover.
Model
Santa Fe Hybrid
(TM HEV)
Santa Fe Plug-in
(TM PHEV)
Event
Menu
#909
TM PE HEV 1.6T-GDI 6AT 4WD 21MY 391312MTC0
TM PE HEV 1.6T-GDI 6AT 4WD 22MY 391312MTC1
TM PE HEV 1.6T-GDI 6AT 4WD 23MY 391312MTC2
TM PE PHEV 1.6T-GDI 6AT 4WD 22MY 391312MTF0
TM PE PHEV 1.6T-GDI 6AT 4WD 23MY 391312MTF1
TSB #: 23-EE-007H
Password
3120
3121
3122
3220
3221
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