TSB-CHA044R1

GROUP
CHA
MODEL
Multiple Models
(see table below)
NUMBER
044 (Rev 1, 06/11/2014)
DATE
May 2014
TECHNICAL SERVICE BULLETIN
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT
 NOTICE
This bulletin has been revised to include additional information. New/revised
sections of this bulletin are indicated by a black bar in the margin area.
This bulletin provides information related to the replacement of the flexible coupling in the
MDPS motor of some of vehicles, which may experience a “clicking” noise emanating from the
MDPS when turning the steering wheel left or right, while stopped. This condition may be
caused by premature wear of the flexible coupling in the MDPS. To correct this concern,
replace the flexible coupling as outlined in this TSB. Refer to the table below for production
dates and a breakdown of replacement procedures by model.
Replacement
Part
Procedure
Model/Year
Applicable Production Range
1
Forte (TD) / 2012~2013
From Jan. 05, 2012 ~ Mar. 31, 2013
Soul (AM) / 2010~2013
From Sep. 01, 2009 ~ Aug. 15, 2013
Optima (TF) / 2011~2014
From Aug. 17, 2010 ~ Dec. 18, 2013
Optima (QF) / 2011~2014
From Aug. 12, 2011 ~ Dec. 18, 2013
Cadenza (VG) / 2014
From Feb. 01, 2013 ~ Apr. 19, 2014
Forte (YD) / 2014
From Jan. 7, 2013 ~ Dec. 18, 2013
2
File Under: 
Circulate To:
x General Manager

x Service Advisor(s)

x Service Manager

x Parts Manager

x Technician(s) 
x Body Shop Manager  Fleet Repair

Page 2 of 12
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT
Replacement Procedure 1: This procedure applies to Forte (TD) models.
1.
Remove the MDPS unit by referring to the applicable procedure on KGIS.
 NOTICE
Before removing the MDPS unit,
make sure to align the steering
wheel to the center position.
2.
A
Locate the steering column guide
bracket (A) and remove four (4) Torx®
head screws (B/C) securing it to the
steering column.
Tightening torque:
B: 3.6 lb-ft (4.9 Nm)
C: 2.2 lb-ft (2.9 Nm)
B
3.
C
Lift the steering column guide bracket
(D) and remove the plastic spacer (E).
Retain all parts as they will be reused.
D
E
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 3 of 12
SUBJECT:
4.
MDPS FLEXIBLE COUPLING REPLACEMENT
Remove the steering column guide
bracket hinge bolt (F).
Tightening torque:
13~14.5lb-ft (17.7~19.6 Nm)
F
5.
6.
Remove the steering column guide
bracket (G) from the steering column.
G
Hold the MDPS upright and loosen four
Torx® head screws (H) securing the
column to the motor housing.
Tightening torque:
6.5~9.4lb-ft (8.8~12.7 Nm)
H
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 4 of 12
SUBJECT:
7.
MDPS FLEXIBLE COUPLING REPLACEMENT
Separate the upper half (I) of the motor
housing from the lower half (J).
I
J
8.
Remove the washer-gasket (K) and
connector (L) from lower portion of the
MDPS.
K
CAUTION
To avoid damage, use caution
when removing the connector.
9.
Remove three (3) Torx® head screws
(M) securing the MDPS ECU cover.
Tightening torque:
3.6~5.1lb-ft (4.9~6.9Nm)
TSB: CHA 044 [REV 1] Multiple Models May 2014
L
M
Page 5 of 12
SUBJECT:
10.
MDPS FLEXIBLE COUPLING REPLACEMENT
Remove four (4) Torx® head screws
(N) securing the MDPS motor cover.
N
Tightening torque:
3.6~5.1lb-ft (4.9~6.9Nm)
11.
Remove the MDPS motor cover.
CAUTION
To avoid damage, use caution
when removing the connector
and the wiring harness.
12.
Remove the original flexible coupling
(O) from the housing. In addition, use
an air gun to remove any foreign
matter from the motor and/or the
housing.
O
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 6 of 12
SUBJECT:
13.
MDPS FLEXIBLE COUPLING REPLACEMENT
Replace the original flexible coupling
with the new part (P). Refer to the
graphic below to properly align the
flexible coupling with the motor
housing.
P
 NOTICE
Before installing the new part,
make sure it has “4P” embossed
on the surface.
14.
Reinstall all removed components by reversing the order of removal.
 NOTICE
Before re-installing the MDPS unit, make sure the front wheels are pointing
straight ahead.
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 7 of 12
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT
Replacement Procedure 2: This procedure applies to Soul (AM), Optima (QF/TF), Cadenza
(VG) and Forte (YD) models.
 NOTICE
Before removing the MDPS unit, make sure to align the steering wheel to the
center position.
1.
Remove the MDPS unit by referring to the applicable procedure on KGIS.
2.
Remove 3 bolts (A) securing the
MDPS motor to the housing.
A
3.
Separate the MDPS motor (B) from
the housing (C), as shown.
B
C
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 8 of 12
SUBJECT:
4.
5.
MDPS FLEXIBLE COUPLING REPLACEMENT
Remove the original flexible coupling
(D) from the motor. In addition, use
an air gun to remove any foreign
matter from the motor and/or the
housing.
D
Install the new flexible coupling (E)
onto the MDPS motor, as shown.
 NOTICE
Before installing the new flexible
coupling, make sure it has “4P”
embossed on the surface.
TSB: CHA 044 [REV 1] Multiple Models May 2014
E
Page 9 of 12
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT
 NOTICE
Before re-installing the MDPS unit, make sure the steering wheel is aligned to the
center position, with the front wheels pointing straight ahead.
6.
Reinstall all removed components by reversing the order of removal.
Calibration Procedure:
1.
Connect the power supply cable to the GDS.
2.
Connect the USB cable between the VCI and the GDS.
3.
Connect the Main 16-pin DLC cable (GHDM – 241000) to the VCI.
4.
Connect the Main 16-pin DLC cable
(GHDM – 241000) to the OBD-II
connector, located under the driver's
side of the instrument panel.
5.
Select EPS and click on OK.
6.
Select Option Treatment under the
Vehicle S/W Management tab.
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 10 of 12
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT
7.
Select ASP Calibration.
8.
Click OK
calibration.
9.
Start the engine and center the steering
wheel. Then, click on OK.
to
continue
with
ASP
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 11 of 12
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT
10.
Turn the ignition OFF and wait 15
seconds. Then, turn the ignition ON and
click on OK.
11.
Access Current Data and verify the
Steering Angle Sensor value is at 0.0 ±
5.0 degrees.
TSB: CHA 044 [REV 1] Multiple Models May 2014
Page 12 of 12
MDPS FLEXIBLE COUPLING REPLACEMENT
SUBJECT:
AFFECTED VEHICLE PRODUCTION RANGE:
Model/Year
Applicable Production Range
Forte (TD) / 2012~2013
From Jan. 05, 2012 ~ Mar.31, 2013
Soul (AM) / 2010~2013
From Sep. 01, 2009 ~ Aug. 15, 2013
Optima (TF) / 2011~2014
From Aug. 17, 2010 ~ Dec.18, 2013
Cadenza (VG) / 2014
From Feb. 01, 2013 ~ Apr.19, 2014
Forte (YD) / 2014
From Jan. 7, 2013 ~ Dec.18, 2013
Optima (QF) / 2011~2014
From Aug. 12, 2011 ~ Dec.18, 2013
PART INFORMATION:
Part Name
Part No.
Qty.
Flexible Coupling
56315 2K000FFF
1
Replacement Part
WARRANTY INFORMATION:
N CODE = N29 C CODE = C63
Model
Claim
Type
Causal
P/N
Soul (AM)
56310
2K625
Optima (QF)
56310
2T301
Forte (TD)
56310
1M550
Qty.
Repair
Description
Labor Op
Code
Op
Time
Replacement
P/N
QTY.
56315
2K000FFF
1
1.3 M/H
56315F00
W
1.5 M/H
0
1.6 M/H
(CHA 044)
MDPS Flexible
Coupling
Replace
Optima (TF)
56310
2T305
Cadenza (VG)
56310
3R561
1.5 M/H
Forte (YD)
56310
A7410
1.3 M/H
1.3 M/H
56315F02
TSB: CHA 044 [REV 1] Multiple Models May 2014