NHTSA ID Number: 10162049
Manufacturer Communication Number: TSBTRA078
TSB/Document Date: 2019-07-04
Summary
TSB: TRANSMISSION LOGIC IMPROVEMENT - This bulletin provides the procedure to optimize the logic of the Transmission Control Unit (TCU) on 2017-2018MY Soul (PS) and Forte (YDm) and 2016-2018MY Optima (JFa) vehicles equipped with 1.6T GDI that have one of the following three components replaced: Dual Clutch Transmission (DCT) assembly; Transmission Control Unit (TCU), and Double Clutch Set.The friction material of the double clutch set has been changed and a TCU logic optimization must be performed in order to prevent initial shift shock.
GROUP
TRA
NUMBER
078
MODEL
2017-2018MY
Soul (PS) 1.6T
Forte (YDm) 1.6T
2016-2018MY
Optima (JFa) 1.6T
DATE
June 2019
TECHNICAL SERVICE BULLETIN
SUBJECT:
TRANSMISSION LOGIC IMPROVEMENT
This bulletin provides the procedure to optimize the logic of the Transmission Control Unit
(TCU) on 2017-2018MY Soul (PS) and Forte (YDm) and 2016-2018MY Optima (JFa) vehicles
equipped with 1.6T GDI that have one of the following three components replaced:
Dual Clutch Transmission (DCT) assembly
Transmission Control Unit (TCU)
Double Clutch Set
The friction material of the double clutch set has been changed and a TCU logic optimization
must be performed in order to prevent initial shift shock. To prevent this concern, apply the
optimized logic to the TCU 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.
NOTICE
If parts must be ordered, be sure to order parts using the old part numbers listed in
the tables on page 2-3, if available. If old parts are no longer available, new
supersession parts may be ordered.
File Under:
Circulate To:
X General Manager
X Service Advisors
X Technicians
X Service Manager
X Parts Manager
X Body Shop Manager Fleet Repair
Page 2 of 7
TRANSMISSION LOGIC IMPROVEMENT
SUBJECT:
DCT Assembly / Double Clutch Set Replacement Flow Chart
DCT assy (or Double
Clutch Set)
diagnosed as faulty
and needs to be
replaced
Check and record the tobe installed DCT assy (or
Double Clutch Set) part
number (reference DCT
assy. parts table)
Check current TCU ROM
ID
Compare DCT assy (or
Double Clutch Set) Part
number and ROM ID using
table below
Both DCT assy (or
Double Clutch Set)
part number and
ROM ID are “old”
Both DCT assy (or
Double Clutch Set)
part number and
ROM ID are “new”
No further action
required
DCT assy (or Double
Clutch Set) part
number is “old” and
ROM ID is “new”
DCT assy (or Double
Clutch Set) Part
number is “new”
and ROM ID is “old”
Replace TCU with
“old” part number
Perform TCU logic
optimization
(procedure page 3)
OLD
Model
ENG
TM
JFa
1.6T
7DCT
NEW
Dbl. Clutch Set
(F833DS)
TCU ROM ID
DJF0T16NS0
DJF0T16NS1
DJF0T16NS2
DJF0T16NS3
DJF0T16NS4
DJF0T16NS5
TCU ROM ID
DJF0T16NS9
41200 2D101
41200 2D220
PS
DPS0T16NS0
DPS0T16NS1
DPS0T16NS4
YDm
DYD0T16NS0
DYD0T16NS1
DYD0T16NS2
DYD0T16NS5
OLD
Model
ENG
TM
Dbl. Clutch Set
(F850)
NEW
TCU ROM ID
DCT Assembly
(F833DS)
TCU ROM ID
DCT Assembly
(F850)
DJF0T16NS0
DJF0T16NS1
DJF0T16NS2
DJF0T16NS3
DJF0T16NS4
DJF0T16NS5
43000 2D081
DJF0T16NS9
43000 2D086
PS
DPS0T16NS0
DPS0T16NS1
43000 2D190
DPS0T16NS4
43000 2D195
YDm
DYD0T16NS0
DYD0T16NS1
DYD0T16NS2
43000 2D101
DYD0T16NS5
43000 2D106
JFa
1.6T
7DCT
TSB: TRA078 Soul (PS), Optima (JFa), Forte (YDm) May 2019
Page 3 of 7
TRANSMISSION LOGIC IMPROVEMENT
SUBJECT:
TCU Replacement Flow Chart
TCU diagnosed as
faulty and requires
replacement
Check current TCU
ROM ID
Match ROM ID to
TCU parts table
below
TCU ROM ID is
“old”
TCU ROM ID is
“new”
Replace TCU with
part number listed
under “old”
Replace TCU with
part number listed
under “new”
OLD
Model
ENG
TM
JFa
1.6T
PS
YDm
7DCT
TCU ROM ID
DJF0T16NS0
DJF0T16NS1
DJF0T16NS2
DJF0T16NS3
DJF0T16NS4
DJF0T16NS5
DPS0T16NS0
DPS0T16NS1
DYD0T16NS0
DYD0T16NS1
DYD0T16NS2
NEW
TCU P/N
(F833DS)
TCU ROM ID
TCU P/N
(F850)
95440 2DBE0
DJF0T16NS9
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TSB/Document ID: TSBTRA078
Replacement Service Bulletin Number:
MFR Communication Date: 2019-06-11
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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