NHTSA ID Number: 10215602
Manufacturer Communication Number: 22-AT-008H
TSB/Document Date: 2022-07-09
Summary
If you are servicing an applicable vehicle with a “Check Engine†light on and one or more of the DTC listed below, follow the Service Procedure and replace the related solenoid and harness.
AUTOMATIC TRANSAXLE SOLENOID DTC
13. Remove the plastic under cover.
Remove the drain plug and drain the ATF.
Reinstall the drain plug.
Torque: 25~31 lb-ft (3~4 kg.m, 33~43 N.m)
14. Remove the hybrid
cooling system drain plug
and drain the coolant.
Refer to Hybrid Motor System, Hybrid Motor
Cooling System, Coolant, Repair
Procedures.
Reinstall the hybrid cooling system drain plug.
Optional procedure: Disconnect the lower hose
from the hybrid radiator.
15. Disconnect the TCU connector and remove the
TCU.
Remove the hybrid power control unit (HPCU).
Refer to Hybrid Control System, Hybrid
Control System, HPCU, Repair Procedures.
Disconnect the OPU connector and remove
the OPU.
TCU
HPCU
OPU
TSB #: 22-AT-008H
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SUBJECT:
AUTOMATIC TRANSAXLE SOLENOID DTC
16. Remove the HPCU tray.
17. Remove the ground bolt.
Move the harness aside for access to the
transmission.
18. Disconnect the air bleeder hose.
TSB #: 22-AT-008H
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AUTOMATIC TRANSAXLE SOLENOID DTC
SUBJECT:
19. Disconnect the harness from the connector.
Remove the bolt and clip. Push the connector
into the transmission case.
20. Remove the ATF warmer, located on the valve
body cover.
21. For Tucson Plug-in Hybrid (NX4 PHEV): Refer to the shop manual, Automatic Transaxle
System, Automatic Transaxle System, Automatic Transaxle, Repair Procedures and
remove the transmission. Go to Step 22.
For all other HEV/PHEV: Continue with Step 22.
22. Remove the bolts and remove the valve body
cover.
CAUTION
Use a rubber hammer to tap the cover
on a corner until the cover is loose.
TSB #: 22-AT-008H
Page 8 of 15
SUBJECT:
AUTOMATIC TRANSAXLE SOLENOID DTC
23. Remove the bolts for the main harness and
temperature sensor.
Move the main harness up and out of the way
so the valve body can be removed.
Remove the bolts on the valve body, beginning
with the outer bolts and moving to the inner
bolts.
Remove the valve body.
24. Lay the valve body on a clean paper towel.
NOTICE
Do not lay the valve body on a rag
because a rag may have lint that
can contaminate the valve body.
25.
Disconnect the harness from the connector.
Remove the harness.
Install a new harness and push the connector
firmly into the transmission case.
TSB #: 22-AT-008H
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AUTOMATIC TRANSAXLE SOLENOID DTC
SUBJECT:
26.
Record the 8-digit number on the new
solenoid.
27.
For 26B 35R, EC, UD and OD solenoids:
Remove two bolts and remove the support.
Use a magnet to remove the roller pin that
secures the solenoid.
Torque: 7~8 lb-ft (1.0~1.2 kgf-m, 10~12 N.m)
For SSA, SSB and LP solenoids:
Use an Allen wrench to remove the 3 Allen
bolts and remove the support.
28.
Refer to the DTC recorded in Step 1 and
replace the related solenoid.
Reinstall the roller pin and/or support.
DTC
P075300
P076800
P077300
P270900
P074800
P075800
P076300
P177800
SOLENOID
UD
OD
SSA
SSB
LP
26B
35R
EC
TSB #: 22-AT-008H
Shift solenoid A
Shift solenoid D
Shift control solenoid E
Shift control solenoid F
Pressure control solenoid
Shift control solenoid B
Shift solenoid C
Engine clutch solenoid
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SUBJECT:
29.
AUTOMATIC TRANSAXLE SOLENOID DTC
Confirm 2 O-rings are installed in the
transmission case.
30. Move the harness up and out of the way so the valve body can be reinstalled.
Align the manual shaft on the valve body to the slot in the manual lever and install the valve
body.
Reinstall the valve body bolts, beginning with the inner bolts and moving outward. Torque the
bolts to specification.
Torque: 7~9 lb.ft (1.0~1.2 kgf.m, 10~12 N.m)
31. Confirm the manual shaft is inserted in the slot
in manual lever.
TSB #: 22-AT-008H
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SUBJECT:
AUTOMATIC TRANSAXLE SOLENOID DTC
32. Confirm the harness connector is pushed firmly
into the case.
Install the new main harness.
Install the bolts and torque to specification.
Torque: 7~9 lb-ft (1.0~1.2 kgf-m, 10~12 N.m)
33. Install a new valve body gasket.
P/N 45283-3D100.
Reinstall the valve body cover and torque the
bolts to specification.
Torque: 9~10 lb.ft (1.2~1.4 kgf.m, 12~13
N.m)
Reconnect the ATF hoses.
34. Reinstall the harness and install the ground
bolt.
Reinstall the HPCU tray.
Reinstall the OPU, HPCU and TCU.
Refer to Hybrid Control System, Hybrid
Control System, HPCU
TSB #: 22-AT-008H
Page 12 of 15
SUBJECT:
AUTOMATIC TRANSAXLE SOLENOID DTC
35. Remove the fill plug.
Add approximately 4 quarts of SP4-M1 ATF,
P/N 00232-19107 through the fill plug.
Reinstall the fill plug and torque to
specification.
Torque: 25~31 lb-ft (3~4 kgf.m, 34~43 N.m)
36. Reconnect the 12V safety plug located on the
passenger side of the engine bay.
Reconnect the terminals to the 12V battery, if
previously disconnected.
37. Reconnect the high voltage plug, located on
the driver’s side near the radiator.
TSB #: 22-AT-008H
Page 13 of 15
SUBJECT:
AUTOMATIC TRANSAXLE SOLENOID DTC
38. Attach the radiator hoses.
Refill the engine coolant.
Refer to the related shop manual, Engine
Mechanical System, Cooling System,
Coolant and Repair Procedures.
Attach a GDS and select S/W Management,
Engine Control and Integrated Thermal
Module Coolant Filling Mode. Follow the
GDS prompts.
39. Reinstall the Hybrid coolant drain plug.
Add hybrid coolant through the reservoir.
NOTE: Use 00232-19091 Electric Vehicle
Battery System Coolant (BSC-1).
Refer to the related shop manual, Hybrid
Motor System, Hybrid Motor Cooling
System, Coolant and Repair procedure.
Attach a GDS and perform the hybrid coolant
refill procedure. Select S/W Management,
Motor Control System, Electric Water Pump
Control. Follow the GDS prompts.
40. Attach the GDS and select Data Analysis, A/T
menu and Oil Temperature Sensor.
Start the engine and shift to R, D and Park.
When the ATF is 122°F~140°F (50~60°C),
remove the level checking plug. The level is
correct when ATF flows out of the level
checking plug in a thin steady stream.
If ATF does not flow out of the level checking
plug, use a fluid pump to add additional
SP4-M1 ATF, P/N 00232-19107 through the
level checking plug.
Collect and dispose of any excess fluid in
accordance with local regulations.
41. Input the radio stations recorded in Step 4.
TSB #: 22-AT-008H
Page 14 of 15
SUBJECT:
AUTOMATIC TRANSAXLE SOLENOID DTC
42. Clear the DTC and test drive the vehicle for two key-on/key-off driving cycles, including 1-2-3-45-6 upshifts and 6-5-4-3-2-1 downshifts. If the DTC returns, perform the following repairs:
REPAIR PROCEDURE
•
Replace the wiring harness between the PCM or TCU and transmission.
• If the solenoid DTC does not return, return the vehicle to the customer.
• If the solenoid DTC returns again, replace the PCM or TCU.
ECU and TCU information:
Models
Control Unit
Santa Fe Hybrid/Plug-in Hybrid (TM HEV/PHEV)
Separate ECU and TCU
Sonata Hybrid (DN8 HEV)
Combined ECU/TCU (PCM)
Tucson Hybrid/Plug-in Hybrid (NX4 HEV/PHEV)
Separate ECU and TCU
43. Drive the vehicle to confirm the transmission is operating as designed.
TSB #: 22-AT-008H
Page 15 of 15
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TSB/Document ID: 22-AT-008H
Replacement Service Bulletin Number:
MFR Communication Date: 2022-06-21
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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