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P code powertrain High severity

P1653 Power Steering Output Circuit Malfunction

The OBD2 code P1653 indicates a malfunction in the power steering output circuit, which may affect the performance of the power steering system

Definition

The OBD2 code P1653 indicates a malfunction in the power steering output circuit, which may affect the performance of the power steering system

Common causes

  • Faulty power steering control module
  • Damaged wiring or connectors in the power steering circuit
  • Failed power steering pump
  • Low power steering fluid level
  • Malfunctioning power steering pressure sensor
  • Short circuit in the power steering output circuit
  • Corroded or loose electrical connections
  • Software issues in the vehicle's control module

Common misdiagnoses

  • Faulty power steering pump
  • Low power steering fluid level
  • Power steering fluid contamination
  • Electrical issues in the wiring harness
  • Faulty power steering control module
  • Steering angle sensor malfunction
  • Incorrectly diagnosed steering rack issues
  • Battery or charging system problems

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide more context and help identify related issues

  2. 2. Inspect Wiring and Connectors

  3. 3. Visually inspect the wiring and connectors associated with the power steering system. Look for signs of damage, corrosion, or loose connections

  4. 4. Pay special attention to the connectors at the power steering control module and the power steering pump

  5. 5. Test the Power Steering Control Module

  6. 6. If the wiring and connectors appear to be in good condition, the next step is to test the power steering control module. This may involve checking for proper voltage and ground at the module

  7. 7. Consult the vehicle’s service manual for specific testing procedures and specifications

  8. 8. Check the Power Steering Fluid

  9. 9. Ensure that the power steering fluid is at the correct level and is in good condition. Low fluid levels or contaminated fluid can cause power steering issues

  10. 10. If the fluid is dirty or contaminated, consider flushing the system and replacing the fluid

  11. 11. Inspect the Power Steering Pump

  12. 12. Check the power steering pump for proper operation. Listen for unusual noises, and check for leaks or signs of wear

  13. 13. If the pump is not functioning correctly, it may need to be repaired or replaced

  14. 14. Test the Steering Angle Sensor

  15. 15. Some vehicles use a steering angle sensor that can affect power steering operation. Test the sensor for proper function and calibration

  16. 16. Check for Ground Issues

  17. 17. Ensure that all ground connections related to the power steering system are secure and free of corrosion

  18. 18. Perform a System Reset

  19. 19. After addressing any issues found, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  20. 20. Consult Technical Service Bulletins (TSBs)

  21. 21. Check for any TSBs related to the P1653 code for your specific vehicle make and model. Manufacturers may have issued guidance on common issues and fixes

  22. 22. Seek Professional Help

  23. 23. If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician who has experience with your vehicle's power steering system. By following these troubleshooting steps, you can systematically identify and resolve the underlying issue causing the P1653 code