2 - 2 Inspection Items Per DTC

DTC	Problem	First analysis method	How to repair
C1290	Torque sensor signal error	First erase DTC, check connector connection.	In case of reoccurrence, replace column & housing.
C1112	Torque sensor voltage error	Check connector between torque sensor and ECU.	In case of reoccurrence, replace ECU.
C1705	ECU hardware error	First erase DTC and then check, check ECU connector.
C1604	ECU over/discharge error
C2413	ECU hardware error
C2400	Motor signal error		In case of reoccurrence, replace
C2401	Motor circuit error motor.		In case of reoccurrence, replace
C2412	Motor voltage supply error	First erase DTC and check, Check ECU/motor connector.	First replace ECU. In case of reoccurrence, replace motor.
C1259	Angle sensor signal error	After Resetting zero point & erasing DTC, check connector connection condition.	In case of reoccurrence, replace column & Housing.
C1261	Zero-setting error	After Resetting zero point, recheck.	Reset the zero-setting.
C1102	Battery voltage problem	Check battery voltage condition.	Recharge battery voltage.
C1696, C1697	SPAS signal error	Check SPAS.	Erase DTC (MDPS is not to be replaced).
C1612, C1646	TCU signal error	Check TCU.
C1628, C1656	Instrument cluster signal error	Check instrument cluster.
C1692, C1693	VSM signal error	Check VSM.
C1260	Angle sensor signal error	After resetting the angle, recheck. If C1259 does not occur, check CAN line.	Reset Angle sensor. Erase DTC.
C1611	CAN time out EMS	Check G-SCAN condition. Check connector connection. Check ECU CAN line. Check MDPS ground line.	Check the EMS CAN Line.
C1616	CAN BUS OFF		Check the chassis CAN Line.
C1622	Vehicle speed signal error		Check the EMS (Engine ECU).
C1623, C1687, C1688	Can time out Steering angle sensor	Check MDPS Power Connector & FUSE Check MDPS Ground line Check MDPS ECU/VSM CAN line Communication status with GDS/KDS	In case of reoccurrence, replace ECU (Heavy steering and no communication)

(3) MDPS Performance Inspection

Inspect steering angle and DTCs relevant to the steering system.
Inspection for heavy steering effort
1. Inspect tire pressure and width.
2. Check DTCs relevant to the CAN communication error.
3. Check the wheel alignment.

(4) MDPS common problems

Case 1	Case 2	Case 3
Courtesy of KIA MOTORS AMERICA, INC.	Courtesy of KIA MOTORS AMERICA, INC.	Courtesy of KIA MOTORS AMERICA, INC.
Multifunction switch noise	Clock spring noise	DAB/Wire noise
Replace multifunction switch	Replace clock spring	Rearrange and replace DAB

Case 4	Case 5	Case 6
Courtesy of KIA MOTORS AMERICA, INC.	Courtesy of KIA MOTORS AMERICA, INC.	Courtesy of KIA MOTORS AMERICA, INC.
Multifunction switch noise	MB nut mount defect	M10 nut mount defect
Replace multifunction switch	Retighten nut	Retighten nut

Case 7	Case 8
Courtesy of KIA MOTORS AMERICA, INC.	Courtesy of KIA MOTORS AMERICA, INC.
Cowl top bolt mount defect	Cowl bar nut mount defect
Retighten cowl top bolt	Replace clock spring

CAUTION: Cautions to be taken when handling the MDPS (Motor Driven Power Steering)

Failure occurs due to internal damage because of the drop of and shock and excessive external force on the new partial component.
→ Be cautious of shock on the partial component and replace the damaged part (due to drop, etc.) with a new one.
When fastening the steering, excessive impact may result in twisting the center point of the torque sensor.
When removing/installing the connector the wiring may be damaged (deformed) by excessive external force.
Be cautious when storing and replacing the partial components under the abnormal temperature and humidity conditions.