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Diagnostic Trouble Code Chart

ELECTRONIC POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE CHART 

DIAGNOSTIC TROUBLE CODE CHART

DTC No. Detection Item Trouble Area
C1511  Torque Sensor Circuit Malfunction
  1. Wire harness
  2. Torque senor (built into power steering gear assembly)
  3. Power steering ECU assembly
C1512  Torque Sensor Circuit Malfunction
  1. Wire harness
  2. Torque senor (built into power steering gear assembly)
  3. Power steering ECU assembly
C1513  Torque Sensor Circuit Malfunction
  1. Wire harness
  2. Torque senor (built into power steering gear 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. Power steering ECU assembly
C1522  Motor Circuit Malfunction
  1. Power steering ECU assembly
C1523  Motor Circuit Malfunction
  1. Wire harness
  2. Power steering motor (built into power steering gear assembly)
  3. Power steering ECU assembly
C1524  Motor Circuit Malfunction
  1. Wire harness
  2. Power steering motor (built into power steering gear 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 gear assembly)
  2. Wire harness
  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 fuse
  2. Wire harness
  3. Power steering ECU assembly
C1554  Power Supply Relay Failure
  1. Power steering ECU assembly
C1555  Motor Relay Welding Failure
  1. Power steering ECU assembly
C1581  Assist Map Number Un-Writing
  1. ECM
  2. Gateway ECU
  3. Power steering ECU assembly
U0105  Lost Communication with ECM
  1. CAN communication system
U0121  Lost Communication with Anti-lock Brake System (ABS) Control Module
  1. CAN communication system
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