GROUP

NUMBER
FUEL SYSTEM

DATE

Technical Service Bulletin
SUBJECT:

23-FL-001H
MODEL(S)

FEBRUARY 2023

APPLICABLE
VEHICLES BELOW

ECU SOFTWARE UPDATE
(DTC P1441/P1A77/P00B7/P2118/P0401/P0236/P0299)

This TSB supersedes 22-FL-003H to remove the Tucson Hybrid/Plug-in.
Description:
This bulletin provides information related to the Engine Control Module (ECM) software update for
Santa Fe Hybrid (TM HEV) / Santa Fe Plug-In Hybrid (TM PHEV) vehicles to revise the following DTC
logic:
• P1441(PCSV rear and hose missing)
• P1A77(HSG Belt slip)
• P00B7(Excessive ITM motor operating current)
• P2118 (ETC target position failure)
• P0401 (EGR gas flow insufficient)
• P0236 (Turbocharger boost sensor range abnormal)
• P0299 (Turbocharger boost pressure too low)
Applicable Vehicles:
• Certain 2021-2022MY Santa Fe Hybrid (TM HEV) / Santa Fe Plug-In Hybrid (TM PHEV)
GDS Information:
Event #
Description
TM
PE
HEV
GAMMA2T-GDI
DTC
MISDIAGNOSIS
IMPROVEMENT (P1441/P1A77/P00B7/P0401/P0236/P0299)
822
TM
PE
PHEV
GAMMA2T-GDI
DTC
MISDIAGNOSIS
IMPROVEMENT (P1441/P1A77/P00B7/P0401/P0236/P0299)
823
NOTES:
• Refer to TSB 15-GI-001 for additional tablet-based Mobile GDS ECU update information.
• After the ECU Upgrade process shows 100% complete, cycle the ignition key to OFF for at
least 30 seconds to reset the control unit. This step is important for establishing normal
powertrain communication and to prevent system errors.
• Clear DTC(s) present after the ECU update.
• Start engine to confirm proper operation of the vehicle.
!

WARNING
GDS Vehicle Battery Voltage Warning:
If voltage is below 12 volts as per the GDS warning, then
select Back and run the engine at least 15 minutes to
reach an adequate battery state of charge to prevent ECU
Update failure. Cycle the ignition OFF/ON before retrying
ECU update again.

Warranty Information:
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair

SUBJECT: ECU SOFTWARE UPDATE (DTC P1441/P1A77/P00B7/P2118/P0401/P0236/P0299)

Engine / Model

Op Code

Operation Op Time

Santa Fe (TM HEV) /
ECM
39131F15 UPGRADE
(TM PHEV)

0.3 M/H

Causal P/N

Nature Cause

39131-2MTC0 (TM HEV)
39131-2MTF0 (TM PHEV)

E13

ZZ3

NOTE: Normal warranty applies.

NOTICE
You must initially perform all GDS ECU Updates in Auto Mode.
If the ECU Update starts but then fails in Auto Mode, perform the update in Manual Mode to recover.
ROM ID Information Table:
• Perform the ECM Update.
• Verify the ECM ROM ID before updating the software. Refer to the table below.
• IMMO (O) = Start Stop Button
• NON IMMO (X) = Key Start
VEH

IMMO

Santa Fe Hybrid
(TM HEV)
Santa Fe
Plug-In Hybrid
(TM PHEV)

Remark

ECU P/N

O

4WD 21MY 391312MTC0

O

4WD 22MY 391312MTC1

O

4WD 22MY

391312MTF0

ROM ID
OLD CAL ID

NEW CAL ID

JTM-1NS06F00CF40
JTM-2NS06F080F00
JTM-2NS06F180F00

JTM-1NS06F183F00

QTM-2NS06F080F00
QTM-2NS06F181F00

JTM-2NS06F283F00
QTM-2NS06F283F00

If the Automatic ECU Upgrade process fails, cycle the ignition key to OFF for at least 30 seconds
to reset the control unit. Then resume programming using the Manual ECU Upgrade processes.

After the ECU Upgrade process shows 100% complete, cycle the ignition key again to OFF for at
least 30 seconds to reset the control unit. This step is important for establishing normal powertrain
communication and to prevent system errors.
NUAL MODE PASSWORD INFORMATION TABLE: #822 Santa Fe Hybrid (TM HEV)
ECM MENU (#822)
PASSWORD
TM PE HEV GAMMA2T-GDI 39131-2MTC0
3120
TM PE HEV GAMMA2T-GDI 39131-2MTC1
3121
MODE PASSWORD INFORMATION TABLE: #823 Santa Fe Plug-In Hybrid (TM PHEV)
ECM MENU (#823)
PASSWORD
TM PE PHEV GAMMA2T-GDI 39131-2MTF0
3122

NOTE: After the ECU update has been completed:
• Clear any ECM DTC(s) after the ECU update, if present.
• Start the engine to confirm proper operation of the vehicle.
TSB #: 23-FL-001H

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