DTC Troubleshooting: C1403-14, C1403-29, C1404-11, C1404-13, C1405-11, C1405-13, C1406-11, C1406-13
DTC C1403-14: Motor Angle Sensor (SIN/COS) Signals Open or Short
DTC C1403-29: Motor Angle Sensor (SIN/COS) Signals Incorrect Correlation
DTC C1404-11: EPS Motor U Phase Circuit Low Voltage
DTC C1404-13: EPS Motor U Phase Circuit High Voltage
DTC C1405-11: EPS Motor V Phase Circuit Low Voltage
DTC C1405-13: EPS Motor V Phase Circuit High Voltage
DTC C1406-11: EPS Motor W Phase Circuit Low Voltage
DTC C1406-13: EPS Motor W Phase Circuit High Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
DTC
Freeze Frame
C1403-14 Motor Angle Sensor (SIN/COS) Signals Open or Short
    
C1403-29 Motor Angle Sensor (SIN/COS) Signals Incorrect Correlation
    
C1404-11 EPS Motor U Phase Circuit Low Voltage
    
C1404-13 EPS Motor U Phase Circuit High Voltage
    
C1405-11 EPS Motor V Phase Circuit Low Voltage
    
C1405-13 EPS Motor V Phase Circuit High Voltage
    
C1406-11 EPS Motor W Phase Circuit Low Voltage
    
C1406-13 EPS Motor W Phase Circuit High Voltage
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
C1403-14 Motor Angle Sensor (SIN/COS) Signals Open or Short
    
C1403-29 Motor Angle Sensor (SIN/COS) Signals Incorrect Correlation
    
C1404-11 EPS Motor U Phase Circuit Low Voltage
    
C1404-13 EPS Motor U Phase Circuit High Voltage
    
C1405-11 EPS Motor V Phase Circuit Low Voltage
    
C1405-13 EPS Motor V Phase Circuit High Voltage
    
C1406-11 EPS Motor W Phase Circuit Low Voltage
    
C1406-13 EPS Motor W Phase Circuit High Voltage
    

Is DTC C1403-14, C1403-29, C1404-11, C1404-13, C1405-11, C1405-13, C1406-11, or C1406-13 indicated?

     
YES
     
     
     
     
NO
     
     
     
Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.?