WOMS
C code chassis Medium severity

C1724 Air Suspension Height Sensor Power Circuit Failure

The OBD2 code C1724 indicates a failure in the power circuit of the air suspension height sensor, which may affect the proper functioning of the air suspension system

Definition

The OBD2 code C1724 indicates a failure in the power circuit of the air suspension height sensor, which may affect the proper functioning of the air suspension system

Common causes

  • Faulty height sensor
  • Damaged wiring or connectors
  • Short circuit in the power circuit
  • Corroded connectors
  • Blown fuse
  • Malfunctioning air suspension control module
  • Poor ground connection

Common misdiagnoses

  • Faulty air suspension compressor
  • Defective air springs
  • Wiring issues or shorts in the harness
  • Bad ground connections
  • Malfunctioning air suspension control module
  • Incorrectly calibrated height sensors
  • Low air pressure in the suspension system
  • Faulty fuses or relays related to the air suspension system

Troubleshooting steps

  1. 1. Check the Vehicle's Battery and Charging System

    Ensure the battery is fully charged and in good condition

  2. 2. Check the alternator output to ensure it is providing adequate voltage

  3. 3. Inspect Fuses and Relays

    Locate the fuse associated with the air suspension system and check for any blown fuses

  4. 4. Inspect any relays related to the air suspension system for proper operation

  5. 5. Visual Inspection of Wiring and Connectors

    Examine the wiring harness and connectors leading to the height sensor for any signs of damage, corrosion, or loose connections

  6. 6. Look for frayed wires, broken connectors, or any signs of wear

  7. 7. Test the Height Sensor

    Use a multimeter to check the resistance and voltage at the height sensor. Compare the readings to the specifications in the vehicle’s service manual

  8. 8. If the sensor is faulty, it may need to be replaced

  9. 9. Check Ground Connections

    Ensure that the ground connections for the height sensor and the air suspension system are clean and secure

  10. 10. A poor ground can lead to power circuit failures

  11. 11. Scan for Additional Codes

    Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues

  12. 12. Inspect the Air Suspension Control Module

    If the height sensor and wiring appear to be in good condition, the issue may lie within the air suspension control module

  13. 13. Check for any software updates or known issues with the module

  14. 14. Perform a System Reset

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

  15. 15. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the air suspension system for your specific vehicle make and model, as there may be known issues or fixes

  16. 16. Seek Professional Help

    If the problem persists after performing these steps, it may be necessary to consult a professional mechanic or technician who specializes in air suspension systems. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the C1724 code. Always refer to the vehicle's service manual for specific procedures and specifications