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B code body Medium severity

B1468 Chime Input Request Circuit Failure

The OBD2 code B1468 indicates a malfunction in the chime input request circuit, which typically means there is a failure in the system responsible for signaling alerts or notifications through chimes in the vehicle

Definition

The OBD2 code B1468 indicates a malfunction in the chime input request circuit, which typically means there is a failure in the system responsible for signaling alerts or notifications through chimes in the vehicle

Common causes

  • Faulty chime switch
  • Damaged wiring or connectors
  • Short circuit in the chime input circuit
  • Open circuit in the chime input circuit
  • Faulty body control module (BCM)
  • Corroded connectors
  • Poor ground connection

Common misdiagnoses

  • Faulty chime module
  • Wiring issues or shorts in the circuit
  • Malfunctioning body control module (BCM)
  • Defective ignition switch
  • Issues with the instrument cluster
  • Faulty door switches or sensors
  • Battery or power supply problems

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. Sometimes, multiple codes can provide more context for the issue

  2. 2. Inspect Wiring and Connectors

    Visually inspect the wiring and connectors associated with the chime system. Look for signs of damage, corrosion, or loose connections that could affect the circuit

  3. 3. Test the Chime Module

    If your vehicle has a dedicated chime module, test it for proper operation. This may involve checking the power and ground connections to the module

  4. 4. Check Fuses

    Inspect the fuses related to the chime system. A blown fuse could interrupt the circuit and cause the code to trigger

  5. 5. Examine the Chime Switch

    If applicable, check the chime switch (or switches) for proper operation. This could include seatbelt switches, door switches, or other input devices that trigger the chime

  6. 6. Test the Circuit

    Use a multimeter to test the chime input request circuit for continuity and proper voltage. This can help identify any breaks or shorts in the circuit

  7. 7. Inspect the Body Control Module (BCM)

    The BCM often controls the chime system. Check for any faults or issues with the BCM that could be causing the failure

  8. 8. Look for Software Updates

    In some cases, a software update for the vehicle's control modules may resolve the issue. Check with the manufacturer or a dealership for any available updates

  9. 9. Clear the Code and Test Drive

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

  10. 10. Consult a Professional

    If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who has experience with your specific vehicle make and model.Conclusion Troubleshooting OBD-II code B1468 involves a systematic approach to inspect the chime system and its related components. By following these steps, you can identify and potentially resolve the issue causing the circuit failure