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C1917 Steering EVO Out-of-Range Fault

The OBD2 code C1917 indicates a fault in the Steering Electronic Variable Orifice (EVO) system, specifically that the system is detecting an out-of-range condition, which may affect steering performance

Definition

The OBD2 code C1917 indicates a fault in the Steering Electronic Variable Orifice (EVO) system, specifically that the system is detecting an out-of-range condition, which may affect steering performance

Common causes

  • Faulty steering angle sensor
  • Malfunctioning electronic power steering (EPS) module
  • Wiring issues or damaged connectors
  • Calibration errors
  • Low power steering fluid levels
  • Mechanical binding in the steering system
  • Software glitches or outdated firmware
  • Faulty steering column assembly

Common misdiagnoses

  • Faulty steering angle sensor
  • Incorrectly calibrated steering system
  • Malfunctioning power steering pump
  • Wiring issues or shorts in the steering system
  • Faulty electronic control unit (ECU)
  • Low power steering fluid levels
  • Mechanical binding in the steering column or linkage
  • Issues with the vehicle's battery or charging system

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues

  2. 2. Inspect the Steering System

    Visual Inspection: Check for any visible damage to the steering components, including the steering column, rack and pinion, and associated wiring

  3. 3. Fluid Levels

    Ensure that the power steering fluid is at the correct level and that there are no leaks in the system

  4. 4. Examine the Wiring and Connectors

    Inspect the wiring harness and connectors related to the steering system for any signs of damage, corrosion, or loose connections. Pay special attention to the connectors for the steering angle sensor and the EPS motor

  5. 5. Test the Steering Angle Sensor

    The steering angle sensor is crucial for the proper functioning of the EPS system. Use a multimeter or scan tool to check the sensor's output and ensure it is within the manufacturer's specifications

  6. 6. Check the Power Steering Control Module

    The power steering control module (or EPS module) may be malfunctioning. Check for any software updates or recalls related to the module. If necessary, perform a reset or reprogramming

  7. 7. Inspect the EVO System

    If your vehicle is equipped with an Electronic Variable Orifice (EVO) system, check the operation of the EVO valve. Ensure it is functioning correctly and not stuck or blocked

  8. 8. Perform a Steering Calibration

    Some vehicles may require a calibration procedure after repairs or component replacements. Refer to the vehicle's service manual for specific calibration procedures

  9. 9. Test Drive the Vehicle

    After performing the above checks and repairs, take the vehicle for a test drive to see if the code returns. Monitor the steering feel and responsiveness

  10. 10. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the C1917 code or the steering system for your specific make and model. Manufacturers may have issued guidance on common issues and fixes

  11. 11. Seek Professional Help

    If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or dealership for further diagnosis and repair.Conclusion Always refer to the vehicle's service manual for specific diagnostic procedures and specifications. Proper diagnosis is crucial to avoid unnecessary repairs and ensure the safety and functionality of the steering system