TSBCHA084_R1

GROUP
CHA
MODEL
Multiple Models
NUMBER
084 (Rev 1, 01/04/2019)
DATE
November 2018
TECHNICAL SERVICE BULLETIN
SUBJECT:
REPLACEMENT OF C-MDPS MOTOR AND/OR ECU
 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 regarding the partial repair of the Motor Driven Power
Steering (MDPS) Motor and/or Electronic Control Unit (ECU) on the listed Kia models with a
column mounted C-MDPS unit. Follow the procedure outlined in this bulletin to replace the CMDPS Motor and/or ECU per DTC in the order described in the table below.
Prior to proceeding with this bulletin, ensure that all wiring connections have been
inspected before replacing any of the parts listed in the table below.
DTC
DTC Error
C2400
Motor Fault
Motor Not Running
C2401
Motor Position Sensor
C1604
ECU Hardware
C1704
ECU Fail-Safe Relay
C1705
MDPS Circuit Malfunction
C2413
Motor Current
C2412
Motor Short or Open
1st
Replacement Order
2nd
Motor
ECU
Steering Column
Assembly
ECU
Steering Column
Assembly
-
Motor
ECU
Steering Column
Assembly
Model
Model Year
Optima (TF)
Optima (QF)
Optima (TF HEV)
Sorento (XMa)
Optima (JF, JFa)
Sorento (UMa)
2011 – 2015
2012 – 2015
2011 – 2016
2014 – 2015
2016~
2016~
3rd
 NOTICE
This bulletin only outlines the replacement procedure of either or both of the Column
Mounted (C-MDPS) Motor and the ECU, NOT the replacement of the complete C-MDPS
steering column assembly.
File Under: 
Circulate To:
X General Manager

X Service Advisors

X Technicians

X Service Manager

X Parts Manager

X Body Shop Manager 
X Fleet Repair

Page 2 of 3
SUBJECT:
REPLACEMENT OF C-MDPS MOTOR AND/OR ECU
Replacement Procedure for MDPS Motor:
1. Replace the MDPS motor by referring to
the “Steering System → Electric Power
Steering → MDPS Motor → Repair
Procedures” chapter in the applicable
Shop Manual on KGIS.
Replacement Procedure for MDPS ECU:
1 Replace the MDPS ECU by referring to
the “Steering System → Electric Power
Steering → MDPS ECU → Repair
Procedures” chapter in the applicable
Shop Manual on KGIS.
 IMPORTANT
Ensure all steps are closely followed within the Service information as additional
KDS-related procedures are required. Ensure the Steering Angle Sensor (SAS) is
calibrated and there are no DTCs after replacement of the MDPS Motor and/or
ECU. Verify proper operation of the steering system and vehicle.
TSB: CHA084 (Rev 1) Multiple Models November 2018
Page 3 of 3
REPLACEMENT OF C-MDPS MOTOR AND/OR ECU
SUBJECT:
AFFECTED VEHICLE RANGE:
Model
Model Year Range
Optima (TF)
2011 through 2015
Optima (QF)
2012 through 2015
Optima (TF HEV)
2011 through 2016
Sorento (XMa)
2014 through 2015
Optima (JF, JFa)
2016~
Sorento (UMa)
2016~
REQUIRED PART:
Part Name
Part Number
C-MDPS Motor
Refer to EPC
C-MDPS ECU
Refer to EPC
Figure
WARRANTY INFORMATION:
N Code: D61 C Code: ZZ4
Model
TF, QF,
TF HEV
JF, JFa,
XMa
UMa
Claim
Type
W
W
W
W
Causal
P/N
Qty.
Repair
Description
Labor
Op Code
Op
Time
Replacement
P/N
Qty.
Refer to
EPC
1
C-MDPS Motor
Replacement
56330F01
0.8
M/H
N/A
0
Refer to
EPC
1
C-MDPS ECU
Replacement
56340F01
0.5
M/H
N/A
0
Refer to
EPC
1
C-MDPS Motor
Replacement
56330F01
0.8
M/H
N/A
0
Refer to
EPC
1
C-MDPS ECU
Replacement
56340F01
0.8
M/H
N/A
0
C-MDPS Motor
Replacement
56330F01
0.8
M/H
N/A
0
C-MDPS ECU
Replacement
56340F01
0.5
M/H
N/A
0
Refer to
EPC
1
Refer to
EPC
1
C-MDPS Motor
Replacement
56330F01
0.7
M/H
N/A
0
Refer to
EPC
1
C-MDPS ECU
Replacement
56340F01
0.7
M/H
N/A
0
TSB: CHA084 (Rev 1) Multiple Models November 2018