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