GROUP
AUTOMATIC
TRANSMISSION
DATE

Technical Service Bulletin
FEBRUARY 2020

SUBJECT:

NUMBER
20-AT-007H
MODEL
ACCENT (HC)
ELANTRA (AD/ADa)
ELANTRA GT (PD)
KONA (OS)
SANTA FE SPORT (AN)
TUCSON (TL)
VELOSTER (JS)

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800, P075300, P075800, P076300, P076800, P077300

This TSB supersedes TSB 19-AT-016H to revise the Elantra (AD/ADa) applicable years.
Description: If you are servicing an applicable vehicle with a “Check Engine” light on and one or
more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil
pressure harness.
NOTE: The 6-speed vehicles listed below are equipped with a Generation2 valve body with 7
solenoids. Previous 6-speed transmissions have a Generation1 valve body with 8 solenoids
(Refer to TSB 20-AT-008H).
Applicable Vehicles:
2018~19
2017~19
2018~
2018~
2017~18
2018~
2019~

Accent (HC) 1.6L
Elantra (AD/ADa) 2.0L
Elantra GT (PD) 2.0L
Kona (OS) 2.0L
Santa Fe Sport (AN) 2.4L
Tucson (TL) 2.4L
Veloster (JS) 2.0L

Parts Information: Refer to the PNC in the parts catalog to order the correct part number.
MODEL

PNC

PART
NUMBER

45000

45000-*****

P074300 Torque converter (TC)

46202A

46313-3B***

P074800 Pressure control solenoid (PC)

46313A

46313-3B***

P075300 Shift solenoid A (UD)

46313C

46313-2F***

P075800 Shift solenoid B (26)

46313B

46313-3B***

P076300 Shift solenoid C (35R)

46313B

46313-3B***

P076800 Shift solenoid D (OD)

46313C

46313-3B***

P077300 Shift solenoid E (SS-A)

46313D

46313-3B***

46307

46307-2F***

DTC

DESCRIPTION

P074100 Torque converter clutch system
2018~19
2017~19
2018~
2018~
2017~18
2018~
2019~

Accent (HC) 1.6L
Elantra (AD/ADa) 2.0L
Elantra GT (PD) 2.0L
Kona (OS) 2.0L
Santa Fe Sport (AN) 2.4L
Tucson (TL) 2.4L
Veloster (JS) 2.0L

ALL

All

Oil pressure switch harness

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

SUBJECT: DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

Warranty Information:
MODEL
2018~19
2017~19
2018~
2018~
2017~18
2018~
2019~

OP
CODE

OPERATION OP TIME

Accent (HC) 1.6L
Elantra (AD/ADa) 2.0L
Elantra GT (PD) 2.0L
Kona (OS) 2.0L
45775R00
Santa Fe Sport (AN) 2.4L
Tucson (TL) 2.4L
Veloster (JS) 2.0L

Solenoid
replacement

45775RQ0

GDS
Operation

ALL

CAUSAL
PART

Refer to
Refer to
WEBLTS
Parts
for
Informatcurrent
ion table
LTS time on Page 1

NATURE CAUSE
CODE
CODE

13A

ZZ3

Service Procedure:
1.

Attach a GDS and select DTC Analysis and A/T menu. Record the DTC and description.
Delete the DTC.

2.

From the GDS home screen, select Data Analysis and A/T menu and the solenoid parameters
shown below. If the solenoids show:
 Continuous and changing output while driving, the wiring currently has no open/short
circuits. Go to Step 4.
 No continuous and changing output, go to Step 3.

3.

Visually check the wiring harness between the PCM and transmission for a damaged wire or
open/short circuit. Check for a damaged pin or pin not fully inserted into the connector.
 If damage exists, repair or replace the control wiring and drive the vehicle to confirm the
repair.
 If no damage or open/short circuit, go to Step 4.

TSB #: 20-AT-007H

Page 2 of 9

SUBJECT: : DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

4.

Refer to the DTC recorded in Step 1 and follow the repair procedure shown below:
P074100
P074300
P074800
P075300
P075800
P076300
P076800
P077300

DTC
Torque converter clutch system
Torque converter (TC)
Pressure control solenoid (PC)
Shift solenoid A (UD)
Shift solenoid B (26)
Shift solenoid C (35R)
Shift solenoid D (OD)
Shift solenoid E (SS-A)

REPAIR PROCEDURE

Go to Step 5 and replace the related solenoid and
oil pressure switch harness.

5.

Record the preset radio stations.
Remove the air cleaner, battery and battery tray.

6.

Remove the undercover below the transmission.

7.

If necessary to access the solenoids, drain the radiator and remove the lower radiator hose
from the radiator.
Drain the ATF.

8.

Use a screwdriver to release the tab and
remove the harness connector on top of the
case.
Remove the bolt that secures the retainer and
push the connector into the transmission.

9.

Remove the oil pan bolts and remove the pan.

CAUTION
Use a rubber hammer to tap the oil
pan cover on a corner until the cover
is loose.

TSB #: 20-AT-007H

Page 3 of 9

SUBJECT: DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

10. Remove 7 bolts to the oil pressure switch
harness.
Pull the harness outward and move the
harness out of position.

11. Remove the bolt that secures the detent spring
and remove the spring.
Torque: 8~11 lb.ft (1.2~1.5 kgf.m/10~13 N.m)

12. Remove the valve body bolts from the
outermost bolts to the center bolts.
Remove the valve body.

CAUTION
Place the valve body on a clean paper
towel. Placing the valve body on a rag
may cause lint to enter the valve body.

TSB #: 20-AT-007H

Page 4 of 9

SUBJECT: : DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

13. Use a screwdriver to depress the locking tab
on the connector and pull outward on the
connector.

14. Remove two bolts that secure the harness to
the case.
Pull the harness downward out of the case.
Install a new harness and insert the connector
into the case. Attach the retainer and bolt on
top of the case as shown in Step 8.
Reinstall the bolts that secure the harness.
Torque: 7~9 lb.ft (1.0~1.2 kgf.m, 10~12 N.m)

15. For UD, OD, 26 and 35R solenoids:


Use a 10mm socket and ratchet to remove
two bolts to the upper solenoid support.
Remove the support.

26
UD

For SS-A, TC and PC solenoids:


Use a 5mm hex socket and remove three
hex bolts that secure the solenoid support.
Remove the support.

35R
OD
SSA
TC
LP

16. Record the 8-digit code on the solenoid.

TSB #: 20-AT-007H

Page 5 of 9

SUBJECT: DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

17. Refer to the DTC recorded in Step 1 and
replace the related solenoid.
DTC
P074100
P074300
P074800
P075300
P075800
P076300
P076800
P077300

TC
TC
LP
UD
26
35R
OD
SSA

Solenoid
TC solenoid (TC)
TC solenoid (TC)
Line pressure control
Shift solenoid (UD)
Shift solenoid (26)
Shift solenoid (35R)
Shift solenoid (OD)
Shift solenoid (SSA)

Reinstall the solenoid support.

26
UD
35R
OD
SSA
TC
LP

18. Reconnect the harness to the input and output
speed sensor (see Step 13).
Confirm the O-rings are installed correctly in
the case.

19. Align the manual shaft to the shift lever and
install the valve body.

TSB #: 20-AT-007H

Page 6 of 9

SUBJECT: : DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

20. Install the valve body bolts and torque the bolts
to specification from the center bolts to the
outermost bolts.
Torque: 7~9 lb.ft (1.0~1.2 kgf.m/10~12 N.m)
Reinstall the bolt and detent spring.
Torque: 8~11 lb.ft (1.2~1.5 kgf.m/10~13 N.m)

21. Connect the oil pressure harness to the
solenoids.
Install the bolts to the harness and torque to
specification.
Torque: 7~9 lb.ft (1.0~1.2 kgf.m/10~12 N.m)

22. Reinstall the pan and tighten the bolts to
specification.
Torque: 9~10 lb.ft (1.2~1.4 kgf.m/12~14 N.m)

23. Attach the lower radiator hose. Add ethylene glycol engine coolant to the radiator and check the
level according to the appropriate shop manual, “Engine” section.
24. Reconnect the battery.
Input the radio stations recorded in Step 5.

TSB #: 20-AT-007H

Page 7 of 9

SUBJECT: DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

25. Remove the transaxle fill plug.
Use a funnel to add approximately 5~6 quarts
of SP4-M ATF through the fill plug opening.
Reinstall the fill plug.
Attach the GDS and select Data Analysis, A/T
menu and Oil Temperature Sensor.
Start the engine and shift to R, D and place in
Park. When the ATF is 122°F~140°F
(50~60°C), remove the level checking plug.
The level is correct when oil flows out of the
level checking plug in a thin steady stream.
Collect and dispose of any excess fluid in
accordance with local regulations.
26.

Clear the DTC and test drive the vehicle for two key-on/key-off driving cycles, including
1-2-3-4-5-6 upshifts and 6-5-4-3-2-1 downshifts. If the DTC returns, perform the following
repairs:
DTC
P074100
P074300
P074800

P075300
P075800
P076300
P076800 .
P077300

Repair Procedure

Replace the transmission.
Replace the control wiring harness between the PCM and transmission.
 If the solenoid DTC does not return, return the vehicle to the customer.
 If the solenoid DTC returns again, replace the PCM.

27. Attach a GDS and select S/W Management, Automatic Transaxle and Oil-pressure
Characteristics Input (Solenoid Valve Replacement). Select OK and follow the prompts on
the GDS.

NOTICE
This procedure is necessary only for the UD, 26, 35R and OD solenoids.

TSB #: 20-AT-007H

Page 8 of 9

SUBJECT: : DTC P074100, P074300, P074800, P075300, P075800, P076300, P076800, 077300

28. Select the type of solenoid from the drop-down
menu. Select OK.

29.

Input the 8-digit code recorded in Step 16 in
the blank spaces in the GDS. Select OK.
Input the 8 digit code again and select OK.
Confirm the procedure was completed.

30. Drive the vehicle to confirm the transmission is operating as designed.

TSB #: 20-AT-007H

Page 9 of 9