GROUP

NUMBER

AUTOMATIC
TRANSMISSION
DATE

Technical Service Bulletin
SUBJECT:

AUGUST 2019

19-AT-017H
MODEL
SONATA (LFa)
SANTA FE (TMa)
PALISADE (LX2)

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800, P075300, P075800, P076300, P076800, P077300 &
P270900

This TSB supersedes TSB 18-AT-016 to add the Palisade (LX2)
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.
Applicable Vehicles:
2018~ Sonata (LFa) 2.0T
2019~ Santa Fe (TMa) 2.0T/2.4L
2020~ Palisade (LX2) 3.8L
Parts Information:
Refer to the PNC in the parts catalog to order the correct solenoid part number.
MODEL

DTC

2018~ Sonata (LFa)
2.0T
2019~ Santa Fe (TMa)
2.0T/2.4L
2020~ Palisade (LX2)
3.8L

ALL

PART

PNC

PART NUMBER

P074100 Torque converter clutch system

46202A

46313-3B***

P074300 Torque converter clutch circuit

46202A

46313-3B***

P074800 Pressure control solenoid (PC)

46313A

46313-3B***

P075300 Shift solenoid A (UD)

46313C

46313-3B***

P075800 Shift solenoid B (46)

46313B

46313-4G***

P076300 Shift solenoid C (37R)

46313B

46313-4G***

P076800 Shift solenoid D (OD&LR)

46313C

46313-4G***

P077300 Shift solenoid E (28)

46313B

46313-4G***

P270900 Shift control solenoid valve F (SSA)

46313D

46313-3B***

46307

46307-4G***

45282E

45283-4G***

Valve body internal harness
Plastic oil pan gasket

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

SUBJECT:

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800, P075300, P075800, P076300, P076800, P077300 & P270900

Warranty Information:
MODEL

OP CODE

Sonata (LFa)

45775R00

Santa Fe (TMa)
Palisade (LX2)

45775R8L

ALL

45775RQ0

OPERATION

Solenoid
replacement
GDS operation

OP TIME

CAUSAL
PART

Refer to WEBLTS
for current LTS
time

Refer to
Parts
Information
table on
Page 1

NATURE CAUSE
CODE
CODE

I3A

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 ECM control harness and drive the vehicle to confirm
the repair.
 If no damage or open/short circuit is found, go to Step 4.

TSB #: 19-AT-017H

Page 2 of 9

SUBJECT:

4.

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800,,P075300, P075800, P076300, P076800, P077300 & P270900

Refer to the DTC recorded in Step 1 and follow the repair procedure shown below:
P074100
P074300
P074800
P075300
P075800
P076300
P076800
P077300
P270900

DTC
Torque converter clutch system
Torque converter (T/C)
Pressure control solenoid (P/C)
Shift solenoid A (UD)
Shift solenoid B (46)
Shift solenoid C (37R)
Shift solenoid D (OD&LR)
Shift solenoid E (28)
Shift solenoid F (SSA)

REPAIR PROCEDURE

Go to Step 5 and replace the related solenoid and
valve body harness.

5.

Record the preset radio stations.
Remove the battery and battery tray.

6.

Remove the undercover below the transmission.
Lift the vehicle on a hoist.

7.

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

8.

Disconnect the harness from the transmission.
Remove the bolt that secures the tab and push
the harness connector into the transmission.
Disconnect the vent hose on the top of the oil
pan.

9.

Remove 14 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 #: 19-AT-017H

Page 3 of 9

SUBJECT:

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800, P075300, P075800, P076300, P076800, P077300 & P270900

10. Remove 6 bolts to the harness and 1 bolt to
the oil temperature sensor.
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 9 valve body bolts in order from the
outermost bolts to the innermost 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 #: 19-AT-017H

Page 4 of 9

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800,,P075300, P075800, P076300, P076800, P077300 & P270900
13. Pull the gray tab up and then press the tab to
disconnect the harness from the input speed
sensor.
SUBJECT:

Remove two bolts and remove the input speed
sensor.
Remove the harness and install a new
harness.
Reinstall the input speed sensor and torque
the bolts to specification.
Torque: 7~9 lb.ft (1.0~1.2 kgf. m/10~12 N.m)
Reconnect the input speed sensor.
14. Record the 8-digit code on the solenoid.

15. Refer to the DTC recorded in Step 1 and
replace the related solenoid.
28
DTC
P074100
P074300
P074800
P075300
P075800
P076300
P076800
P077300
P270900

TC
TC
PC
UD
46
37R
OD&LR
28
SSA

SOLENOID
TC solenoid
TC solenoid
Pressure control
Shift solenoid A (UD)
Shift solenoid B (46)
Shift solenoid C (37R)
Shift solenoid D (OD&LR)
Shift solenoid E (28)
Shift solenoid F (SSA)

46
37R

UD
OD&LR
SSA
TC
PC

16. For 28, 46 and 37R solenoids:


Remove two bolts to the upper solenoid
support. Remove the support.
 Use a magnet to remove the pin for the
solenoid to be replaced.
 Remove the solenoid and install a new
solenoid.
 Reinstall the pin.
 Reinstall the support and tighten to
specification.
Torque: 7~9 lb.ft (1.0~1.2 kgf.m/10~12 N.m)

TSB #: 19-AT-017H

Page 5 of 9

SUBJECT:

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800, P075300, P075800, P076300, P076800, P077300 & P270900

17. For UD, OD&LR, SSA, TC and PC
solenoids:


Use a 5mm hex socket and remove 3 Allen
bolts that secure the solenoid support.
Remove the support.



Remove the solenoid and install a new
solenoid.



Reinstall the support and tighten the Allen
bolts.

18. Confirm two O-rings are installed correctly in
the case.

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

TSB #: 19-AT-017H

Page 6 of 9

SUBJECT:

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800,,P075300, P075800, P076300, P076800, P077300 & P270900

20. Install the valve body bolts and torque the bolts
in order from the innermost bolts to the
outermost bolts.
Torque: 7~9 lb.ft (1.0~1.2 kgf. m/10~12 N.m)

21. Reinstall the bolt that secures the detent spring
and tighten the bolt to specification.
Torque: 8~11 lb.ft (1.2~1.5 kgf.m/10~13 N.m)

22. Reconnect the solenoid harness to the
solenoids and install the temperature sensor.
Install 6 bolts to the harness and 1 bolt to the
oil temperature sensor and torque to
specification.
Torque: 7~9 lb.ft (1.0~1.2 kgf.m/10~12 N.m)

TSB #: 19-AT-017H

Page 7 of 9

SUBJECT:

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800, P075300, P075800, P076300, P076800, P077300 & P270900

23. Install a new gasket to the oil pan and reinstall
the pan.
Install 14 bolts to the pan and tighten the bolts
to specification.
Torque: 8~10 lb.ft (1.2~1.4 kgf.m/12~13 N.m)

24. Add ethylene glycol engine coolant to the radiator and check the level according to the
appropriate shop manual, “Engine” Section.
25. Reconnect the battery.
Input the radio stations recorded in Step 5.
26. 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 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.

TSB #: 19-AT-017H

Page 8 of 9

AUTOMATIC TRANSAXLE SOLENOID DTC P074100, P074300,
P074800,,P075300, P075800, P076300, P076800, P077300 & P270900
Clear the DTC and test drive the vehicle for two key-on/key-off driving cycles, including
1-2-3-4-5-6-7-8 upshifts and 8-7-6-5-4-3-2-1 downshifts. If the DTC returns, perform the
following repairs.

SUBJECT:

27.

DTC
P074100
P074300
P074800
P075300
P075800
P076300
P076800 .
P077300
P270900

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.

28. Clear the DTC in the Blue Link system per instructions of TSB 12-BE-005-2.
Solenoid Oil Pressure Data Characteristics Input:

NOTICE
This procedure is necessary only for the following solenoids: P075300, P075800,
P076300, P076800, P077300.
29. Select S/W Management, Automatic
Transaxle and Oil Pressure
Characteristics Input (Solenoid valve
Replacement). Select OK and follow the
prompts.
Select the type of solenoid from the dropdown menu. Select OK.

30. Input the 8-digit code recorded in Step 14
in the blank spaces in the GDS. Select OK.
Input the 8 digit code again and select OK.
The GDS will confirm the procedure was
completed.

31. Drive the vehicle for two key cycles to confirm proper shift quality.

TSB #: 19-AT-017H

Page 9 of 9