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Diagnostic Trouble Code Chart

ELECTRONIC POWER STEERING SYSTEM 

ELECTRONIC POWER STEERING SYSTEM DTC CHART

DTC Code Detection Item Trouble Area
C1511  Torque Sensor Circuit Malfunction
  1. Wire harness or connector
  2. Torque sensor (built into power steering link assembly)
  3. Power steering ECU assembly
C1512  Torque Sensor Circuit Malfunction
  1. Wire harness or connector
  2. Torque sensor (built into power steering link assembly)
  3. Power steering ECU assembly
C1513  Torque Sensor Circuit Malfunction
  1. Wire harness or connector
  2. Torque sensor (built into power steering link assembly)
  3. Power steering ECU assembly
C1515  Torque Sensor Zero Point Adjustment Undone -
C1516  Torque Sensor Zero Point Adjustment Incomplete -
C1521  Motor Circuit Malfunction
  1. Wire harness or connector
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU assembly
C1522  Motor Circuit Malfunction
  1. Wire harness or connector
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU assembly
C1523  Motor Circuit Malfunction
  1. Wire harness or connector
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU assembly
C1524  Motor Circuit Malfunction
  1. Wire harness or connector
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU assembly
C1525  Rotation Angle Sensor initialization Undone -
C1526  Rotation Angle Sensor Initialization Incomplete -
C1528  Motor Rotation Angle Sensor Malfunction
  1. Motor rotation angle sensor (built into power steering link assembly
  2. Wire harness or connector
  3. Power steering earth wire
  4. Power steering ECU assembly
C1531  ECU Malfunction
  1. Power steering ECU assembly
C1532  ECU Malfunction
  1. Power steering ECU assembly
C1533  ECU Malfunction
  1. Power steering ECU assembly
C1534  ECU Malfunction
  1. Power steering ECU assembly
C1541  Vehicle Speed Signal Malfunction
  1. Speed sensor circuit
  2. Skid control ECU
  3. CAN communication system
  4. Power steering ECU assembly
C1551  IG Power Supply Voltage Malfunction
  1. Power steering ECU assembly
C1552  PIG Power Supply Voltage Malfunction
  1. EPS relay
  2. ECU-B fuse
  3. EPS fuse
  4. Wire harness or connector
  5. Power steering ECU assembly
C1554  Power Supply Relay Failure
  1. EPS relay
  2. ECU-B fuse
  3. EPS fuse
  4. Wire harness or connector
  5. Power steering ECU assembly
C1555  Motor Relay Welding Failure
  1. Power steering ECU assembly
C1567  Lost Communication between EPS ECU and VGRS ECU
  1. Steering control ECU
  2. Local CAN communication
C1581  Assist Map Number Unwitting
  1. Power steering ECU assembly
U0073  Control Module Communication Bus OFF
  1. CAN communication system
U0105  Lost Communication with ECM
  1. CAN communication system
  2. ECM (when only U0105 is output)
U0121  Lost Communication with Anti-lock Brake System (ABS) Control Module
  1. CAN communication system
  2. Skid control ECU (when only U0121 is output)
U0122  Lost Communication with Vehicle Dynamics Control Module
  1. Skid control ECU
  2. CAN communication system
U0130  Lost Communication with VGRS
  1. Steering control ECU
  2. CAN communication system
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