Electric Power Steering System - Diagnostics

• Precaution
• Location
• System Diagram
• System Description
• How To Proceed With Troubleshooting
• Customer Problem Analysis Check
• Calibration
• Problem Symptoms Table
• Terminals Of Ecu
• Diagnosis System
• Diagnostic Trouble Codes Check/Clear
• Freeze Frame Data
• Fail-Safe Chart
• Data List/Active Test
• Diagnostic Trouble Code Chart
• DTC C1511, C1512, C1513, C1514, C1517: Torque Sensor Abnormal, DTC Torque Sensor Abnormal/Power Supply Abnormal/Hold Abnormal
  • Circuit Description
  • Wiring Diagram
  • Inspection Procedure
• DTC C1515: Torque Sensor Zero Point Adjustment Undone
  • Circuit Description
  • Inspection Procedure
• DTC C1516: Torque Sensor Zero Point Adjustment Incomplete
  • Circuit Description
  • Inspection Procedure
• DTC C1524: Motor Abnormal
  • Circuit Description
  • Wiring Diagram
  • Inspection Procedure
• DTC C1531, C1532, C1533, C1534: Ecu Abnormal
  • Circuit Description
  • Inspection Procedure
• DTC C1551: IG Power Source Voltage Malfunction
  • Circuit Description
  • Wiring Diagram
  • Inspection Procedure
• DTC C1552, C1554, C1555: Pig Power Supply Voltage Abnormal, Power Supply Relay Failure & Motor Relay Welding Failure
  • Circuit Description
  • Wiring Diagram
  • Inspection Procedure
• DTC C1581: Assist Map Number Un-Writing
  • Circuit Description
  • Inspection Procedure
• DTC U0073, U0121: Control Module Communication Bus Off & Lost Communication With Anti-Lock Brake System (Abs) Control Module
  • Circuit Description
  • Wiring Diagram
  • Inspection Procedure
• PS Warning Is Always Shown On Multi-Display
  • Circuit Description
  • Wiring Diagram
  • Inspection Procedure