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C1244 ABS Outlet Valve Coil LR Circuit Short To Battery

The OBD2 code C1244 indicates a short circuit in the left rear ABS outlet valve coil circuit, which is causing it to be continuously connected to the battery voltage

Definition

The OBD2 code C1244 indicates a short circuit in the left rear ABS outlet valve coil circuit, which is causing it to be continuously connected to the battery voltage

Common causes

  • Shorted wiring or connectors in the ABS outlet valve circuit
  • Faulty ABS outlet valve coil
  • Damaged or corroded connectors
  • Grounding issues in the circuit
  • Faulty ABS control module

Common misdiagnoses

  • Faulty ABS module
  • Damaged wiring or connectors
  • Faulty wheel speed sensor
  • Incorrectly installed or defective brake components
  • Malfunctioning brake pedal position sensor
  • Low brake fluid level
  • Faulty relay or fuse related to the ABS system

Troubleshooting steps

  1. 1. Verify the Code

    Use an OBD-II scanner to confirm the presence of the C1244 code

  2. 2. Check for any additional codes that may provide more context

  3. 3. Inspect the Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors related to the ABS outlet valve coil for any signs of damage, fraying, or corrosion

  4. 4. Connector Condition

    Ensure that all connectors are securely attached and free of dirt or moisture

  5. 5. Check for Short Circuits

    Continuity Test: Use a multimeter to check for continuity in the wiring. Look for any shorts to ground or battery voltage

  6. 6. Resistance Test

    Measure the resistance of the outlet valve coil. Compare it to the manufacturer's specifications

  7. 7. Inspect the ABS Module

    Module Functionality: Check the ABS control module for any faults. If the module is malfunctioning, it may need to be repaired or replaced

  8. 8. Software Updates

    Ensure that the ABS module has the latest software updates, as manufacturers sometimes release updates to fix known issues

  9. 9. Test the ABS Outlet Valve Coil

    Coil Functionality: If accessible, test the ABS outlet valve coil directly to ensure it is functioning correctly. This may involve applying power to the coil and checking for operation

  10. 10. Replacement

    If the coil is found to be faulty, replace it

  11. 11. Check for Ground Issues

    Ensure that the ground connections for the ABS system are clean and secure. Poor grounding can lead to erratic behavior and false codes

  12. 12. Clear the Codes and Test Drive

    After performing the above checks and repairs, clear the codes using the OBD-II scanner

  13. 13. Take the vehicle for a test drive to see if the code reappears

  14. 14. Seek Professional Help

    If the issue persists after following these steps, consider consulting a professional mechanic or an automotive technician with experience in ABS systems.Additional Tips: - Always disconnect the battery before working on electrical components to avoid shorts or shocks. - Document any changes or repairs made during the troubleshooting process for future reference. By following these steps, you should be able to identify and resolve the issue related to the C1244 code effectively