GROUP
AUTOMATIC
TRANSMISSION
DATE

Technical Service Bulletin
MARCH, 2020

NUMBER
20-AT-012H
MODEL
ACCENT (HC)
ELANTRA (AD/ADa)
ELANTRA GT (PD)
KONA (OS)
SANTA FE SPORT (AN)
TUCSON (TL)
VELOSTER (JS)

AUTOMATIC TRANSAXLE INPUT/OUTPUT SPEED SENSOR
DTC P071700, P072100 & P072200

SUBJECT:

This TSB supersedes TSB 18-AT-009 to add the Tucson (TL) 2.4L and revise the Elantra
(AD/ADa) 2.0L applicable dates.
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 input/output speed
sensor and oil pressure harness.
NOTE: The 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-011H).
Applicable Vehicles:
2018~
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

2018~
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

DTC

DESCRIPTION

P071700

Input/Turbine speed sensor A
no signal

P072100

Output speed sensor circuit
range/performance

P072200

Output speed sensor circuit no
signal

ALL

Oil pressure switch harness

PNC

PART
NUMBER

42620

42620-*****

46307A 46307-2F***

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

SUBJECT:

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

Warranty Information:
MODEL
2018~
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
45644R00
Santa Fe Sport (AN) 2.4L
Tucson (TL) 2.4L
Veloster (JS) 2.0L

ALL

45644RQ0

Solenoid
replacement

Refer to
WEBLTS
for current
LTS time

CAUSAL NATURE CAUSE
PART
CODE
CODE

See
parts
catalog

I3A

ZZ3

GDS
Operation

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 parameters shown
below. If the parameters 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, go to Step 4.

TSB #: 20-AT-012H

Page 2 of 8

SUBJECT:
4.

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

Refer to the DTC recorded in Step 1 and follow the repair procedure shown below:
DTC
P071700
P072100
P072200

DESCRIPTION
Input/Turbine speed sensor A no
signal
Output speed sensor circuit
range/performance
Output speed sensor circuit no
signal

REPAIR PROCEDURE
Go to Step 5 and replace the input/output speed
sensor 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 input/output speed sensor, 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-012H

Page 3 of 8

SUBJECT:

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

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-012H

Page 4 of 8

SUBJECT:

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

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. Remove two bolts that secure the input/output
speed sensor and remove the sensor.
Install a new input/output speed sensor and
tighten the bolts to specification.
Torque: 6~7 lb.ft (0.9~1.0 kgf.m)

TSB #: 20-AT-012H

Page 5 of 8

SUBJECT:

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

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

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

18. 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)

TSB #: 20-AT-012H

Page 6 of 8

SUBJECT:

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

19. Connect the new oil pressure harness to the
solenoids and install the oil pressure sensor.
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)

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

21. 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.
22. Reconnect the battery.
Input the radio stations recorded in Step 5.
23. 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.
TSB #: 20-AT-012H

Page 7 of 8

SUBJECT:

24.

ATM INPUT/OUTPUT SPEED SENSOR DTC P071700, P072100 & P072200

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
P071700
P072100
P072200

REPAIR PROCEDURE

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..

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

TSB #: 20-AT-012H

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