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C code chassis High severity

C0658 Level Control Compressor Circuit High

The OBD2 code C0658 indicates a high voltage condition in the level control compressor circuit, which is part of the vehicle's air suspension system

Definition

The OBD2 code C0658 indicates a high voltage condition in the level control compressor circuit, which is part of the vehicle's air suspension system

Common causes

  • Faulty level control compressor
  • Short circuit in the compressor circuit
  • Open circuit in the compressor circuit
  • Damaged wiring or connectors
  • Failed level control module
  • Corroded or loose electrical connections
  • Malfunctioning pressure sensor
  • Software issues in the vehicle's control module

Common misdiagnoses

  • Faulty Level Control Module
  • Air Suspension Compressor Issues
  • Wiring or Connector Problems
  • Faulty Height Sensors
  • Air Leaks in Suspension System
  • Incorrectly Diagnosed Suspension Control System
  • Battery or Charging System Issues
  • Software or Calibration Errors

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 the Wiring and Connectors

    Visually inspect the wiring and connectors associated with the level control compressor. Look for signs of damage, corrosion, or loose connections

  3. 3. Pay special attention to the ground connections, as poor grounding can lead to high circuit readings

  4. 4. Test the Level Control Compressor

    Use a multimeter to measure the voltage and resistance of the level control compressor. Compare the readings to the specifications in the vehicle’s service manual

  5. 5. If the compressor is not functioning correctly, it may need to be replaced

  6. 6. Check the Relay and Fuses

    Inspect the relay and fuses related to the level control system. A blown fuse or faulty relay can cause circuit issues

  7. 7. Replace any blown fuses and test the relay for proper operation

  8. 8. Examine the Air Suspension System

    Check for leaks in the air suspension system, as this can affect the compressor's operation

  9. 9. Inspect the air bags and lines for any signs of wear or damage

  10. 10. Test the Level Sensors

    The level sensors provide feedback to the control module about the vehicle's height. Test these sensors for proper operation and ensure they are calibrated correctly

  11. 11. Replace any faulty sensors as needed

  12. 12. Check the Control Module

    If all other components check out, the issue may lie with the control module itself. Ensure that it is functioning correctly and that there are no software issues

  13. 13. In some cases, a software update may be required

  14. 14. Clear Codes and Test Drive

    After performing repairs, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  15. 15. Consult the Service Manual

    Refer to the vehicle’s service manual for specific diagnostic procedures and specifications related to the level control compressor circuit

  16. 16. Seek Professional Help

    If you are unable to resolve the issue after these steps, consider seeking help from a professional mechanic or technician who has experience with air suspension systems. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the C0658 code