NHTSA ID Number: 10170899
Manufacturer Communication Number: 20-AT-001H
TSB/Document Date: 2020-02-03
Summary
This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
GROUP
AUTOMATIC
TRANSMISSION
Technical Service Bulletin
DATE
JANUARY 2020
SUBJECT:
NUMBER
20-AT-001H
MODEL
SEE APPLICABLE
MODELS BELOW
AUTOMATIC TRANSMISSION INCORRECT RATIO DTC P0731,
P0732, P0733, P0734, P0735, P0736, P0729, P076F & P0730
This TSB supersedes TSB 19-AT-012H to revise the AD/ADa model years.
Description: This TSB provides a procedure to diagnose and repair a transaxle for the following
Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
DTC
P0731
P073100
P0732
P073200
P0733
P073300
Description
Gear 1 incorrect ratio
Gear 2 incorrect ratio
Gear 3 incorrect ratio
P0734
P0735
P0736
P0729
P076F
P0730
Gear 4 incorrect ratio
Gear 5 incorrect ratio
Reverse incorrect ratio
Gear 6 incorrect ratio
Gear 7 incorrect ratio
Gear 8 incorrect ratio
P073400
P073500
P073600
P072900
P076F00
P073000
Applicable Vehicles:
2012~17 Accent (RB)
2018~
Accent (HC)
2011
Azera (TG)
2012~17 Azera (HG)
2011~16 Elantra (MD/UD)
2017~19 Elantra (AD/ADa) 2.0L
2013~14 Elantra Coupe (JK)
2013~17 Elantra GT (GD)
2018~
Elantra GT (PD) 2.0L
2018~
Kona (OS) 2.0L
2007~12 Santa Fe (CM)
2013~18 Santa Fe Sport (AN)
2013~19 Santa Fe (NC)
2020~
2019~
2011~14
2015~
2011~15
2016~
2010~15
2016~
2013~15
2019~
Palisade (LX2)
Santa Fe (TMa
Sonata (YF)
Sonata (LF) 2.0T/2.4L
Sonata Hybrid
(YF HEV)
Sonata Hybrid (LF HEV/PHEV)
Tucson (LM)
Tucson (TL) 2.0L
Veloster Turbo (FS)
Veloster (JS) 2.0L
Warranty Information: Normal warranty applies.
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
SUBJECT:
ATM INCORRECT RATIO DTC
Service Procedure:
1. Connect a GDS and check for DTC. Record the DTC and delete the DTC.
If any of the solenoid DTC listed below are found, refer to the appropriate TSB or shop
manual and follow the repair procedure.
If no solenoid DTC are found, go to Step 2.
Description
Solenoid DTC
6AT FWD
8AT FWD
P0743
P074300
Torque converter solenoid (TC)
Torque converter solenoid (TC)
P0748
P074800
Pressure control solenoid (PC)
Pressure control solenoid (PC)
P0753
P075300
Shift solenoid A (UD)
Shift solenoid A (UD)
P0758
P075800
Shift solenoid B (26B)
Shift solenoid B (46)
P0763
P076300
Shift solenoid C (35R)
Shift solenoid C (37R)
P0768
P076800
Shift solenoid D (OD)
Shift solenoid D (OD&LR)
P0773
P077300
Shift solenoid E (SS-A)
Shift solenoid E (28)
P2709
P270900
N/A
Shift solenoid F (SS-A)
2. If any of the DTC on Page 1 are found, refer to the appropriate shop manual, Automatic
Transmission section. Replace the transmission.
TSB #: 20-AT-001H
Page 2 of 2
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TSB/Document ID: 20-AT-001H
Replacement Service Bulletin Number:
MFR Communication Date: 2020-01-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
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