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Diagnostic Trouble Code Chart

HINT:

If a trouble code is displayed during the DTC check, check the trouble area listed for that code in the table below.

ELECTRONIC POWER STEERING SYSTEM 

DIAGNOSTIC TROUBLE CODE CHART - ELECTRONIC POWER STEERING SYSTEM

DTC No. Detection Item Trouble Area
C1511  Torque Sensor Circuit Malfunction
  1. Wire harness
  2. Torque sensor (built into power steering link assembly)
  3. Power steering ECU
C1512  Torque Sensor Circuit Malfunction
  1. Wire harness
  2. Torque sensor (built into power steering link assembly)
  3. Power steering ECU
C1513  Torque Sensor Circuit Malfunction
  1. Wire harness
  2. Torque sensor (built into power steering link assembly)
  3. Power steering ECU
C1515  Torque Sensor Zero Point Adjustment Undone -
C1516  Torque Sensor Zero Point Adjustment Incomplete -
C1521  Motor Circuit Malfunction
  1. Wire harness
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU
C1522  Motor Circuit Malfunction
  1. Wire harness
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU
C1523  Motor Circuit Malfunction
  1. Wire harness
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU
C1524  Motor Circuit Malfunction
  1. Wire harness
  2. Power steering motor (built into power steering link assembly)
  3. Power steering ECU
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
  3. Power steering earth wire
  4. Power steering ECU
C1531  ECU Malfunction 1. Power steering ECU
C1532  ECU Malfunction 1. Power steering ECU
C1533  ECU Malfunction 1. Power steering ECU
C1534  ECU Malfunction 1. Power steering ECU
C1541  Vehicle Speed Signal Malfunction
  1. Speed sensor circuit
  2. Skid control ECU
  3. CAN communication system
  4. Power steering ECU
C1551  IG Power Supply Voltage Malfunction 1. Power steering ECU
C1552  PIG Power Supply Voltage Malfunction
  1. EPS relay
  2. EPS H-fuse
  3. ECU-B fuse
  4. Wire harness
  5. Power steering ECU
C1554  Power Supply Relay Failure
  1. EPS relay
  2. EPS H-fuse
  3. ECU-B fuse
  4. Wire harness
  5. Power steering ECU
C1555  Motor Relay Welding Failure 1. Power steering ECU
C1567  Lost Communication between EPS ECU and VGRS ECU
  1. Steering control ECU
  2. Local CAN communication
C1581  Assist Map Number Un-Writing 1. Power steering ECU
U0073  Control Module Communication Bus OFF 1. CAN communication system
U0104  Lost Communication with Distance Control ECU
  1. Distance control ECU
  2. CAN communication system
U0129  Lost Communication with Skid Control ECU
  1. Skid control ECU
  2. CAN communication system
U0130  Lost Communication with VGRS
  1. Steering control ECU
  2. CAN communication system
U0293  Lost Communication with HV ECU
  1. HV control ECU
  2. CAN communication system
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