NHTSA ID Number: 10177088
Manufacturer Communication Number: 20-FL-005H
TSB/Document Date: 2020-07-08
Summary
This bulletin provides information related to an Electronic Control Module (ECM) software update to revise the logic for DTC P050A: Cold Start Idle Air Control System Performance.
GROUP
NUMBER
FUEL SYSTEM
DATE
SUBJECT:
MODEL(S)
June, 2020
Technical Service Bulletin
20-FL-005H
SONATA HYBRID
(LF HEV)
SONATA PLUG-IN
HYBRID (LF PHEV)
ECM SOFTWARE UPDATE – DTC P050A
Description:
This bulletin provides information related to an Electronic Control Module (ECM) software update to
revise the logic for DTC P050A: Cold Start Idle Air Control System Performance.
Applicable Vehicle: Certain 2019MY Sonata Hybrid (LF HEV) and Sonata Plug-In Hybrid (LF PHEV)
Warranty Information:
Model
Op. Code
Operation
Op. Time
Causal Part
Nature
Cause
Sonata Hybrid (LF HEV)
Sonata Plug-In Hybrid
(LF PHEV)
39161F06
ECM
UPGRADE
0.3 M/H
39150-2G600
I3T
ZZ3
GDS Information:
System Selection: ENGINE CONTROL MODULE (ECM)
Event #
Description
599*
LF HEV NU 2.0 GDI - P050A DTC IMPROVEMENT
600*
LF PHEV NU 2.0 GDI - P050A DTC IMPROVEMENT
(*or use a later available event as listed in the GDS ECU Update screen if one is available.)
Service Procedure:
1. Perform GDS Mobile software update per TSB 15-GI-001.
2. After successful completion of ECM software update, check for Diagnostic Trouble Codes in
ALL menus and erase any DTC.
3. Erase the DTC in the BlueLink system per TSB 12-BE-005-2.
4. Confirm normal vehicle operation.
NOTICE
You must initially perform GDS ECM Update in Auto Mode.
If the ECM Update starts but then fails in Auto Mode, perform the update in Manual Mode to
recover.
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
ECM SOFTWARE UPDATE – DTC P050A IMPROVEMENT
SUBJECT:
!
WARNING
GDS Vehicle Battery Voltage Warning:
If voltage is below 12 volts as per the below GDS warning, then select Back and run the
engine at least 20 minutes to ensure an adequate battery state of charge for reliable update
results. Turn ignition back on, and then retry the ECU update again.
ECM ROM ID Information Table:
MODEL
LF HEV
TM
ENGINE
AT
NU 2.0L
IMMO.
TM
ENGINE
IMMO.
LF
PHEV
AT
NU 2.0L
+IMMO
OLD
NEW
39161-2ELF1
LF9SPHMS6F2A
39161-2ELF2
LF9SPHMS6F2B
LF9SPHMS6F4A
+IMMO
MODEL
ROM ID
PCM P/No.
LF9SPHMS6F4B
ROM ID
PCM P/No.
OLD
39161-2ELH1
LF9SPPMS6F2A
39161-2ELH2
LF9SPPMS6F4A
NEW
LF9SPPMS6F4B
NOTE: +IMMO = Start Stop Button,
Manual Mode Password Information Tables:
EVENT #
MENU
PASSWORD
#599
LF PE NU 2.0 HEV AT +IMMO 39161-2ELF1/2
6121
#600
LF PE NU 2.0 PHEV AT +IMMO 39161-2ELH1/2
6121
TSB #: 20-FL-005H
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TSB/Document ID: 20-FL-005H
Replacement Service Bulletin Number:
MFR Communication Date: 2020-06-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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