WOMS
C code chassis Medium severity

C1162 Park Brake Switch # 2 Released Circuit Failure

The OBD2 code C1162 indicates a malfunction in the Park Brake Switch # 2, specifically a failure in the circuit that detects when the parking brake is released

Definition

The OBD2 code C1162 indicates a malfunction in the Park Brake Switch # 2, specifically a failure in the circuit that detects when the parking brake is released

Common causes

  • Faulty park brake switch
  • Damaged wiring or connectors
  • Short circuit in the wiring
  • Open circuit in the wiring
  • Corroded terminals
  • Faulty brake control module
  • Poor ground connection
  • Malfunctioning electronic parking brake system

Common misdiagnoses

  • Faulty park brake switch
  • Wiring issues or shorts in the circuit
  • Malfunctioning brake control module
  • Faulty brake pedal position sensor
  • Issues with the ABS module
  • Problems with the vehicle's body control module (BCM)
  • Incorrectly installed or damaged park brake assembly
  • Low brake fluid level or brake system issues

Troubleshooting steps

  1. 1. Check the Vehicle's Manual

    Refer to the vehicle's service manual for specific information regarding the park brake switch and its wiring diagram

  2. 2. Visual Inspection

    Inspect the park brake switch and its wiring for any visible damage, corrosion, or loose connections

  3. 3. Check the connectors for any signs of wear or damage

  4. 4. Test the Park Brake Switch

    Use a multimeter to test the park brake switch for continuity

  5. 5. With the park brake engaged, the switch should show continuity. When released, it should not show continuity

  6. 6. If the switch is faulty, it may need to be replaced

  7. 7. Check for Faulty Wiring

    Inspect the wiring harness leading to the park brake switch for any breaks, shorts, or frayed wires

  8. 8. Use a multimeter to check for continuity in the wiring

  9. 9. 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

  10. 10. Inspect the Brake System

    Ensure that the park brake system is functioning correctly. Check the brake cables and components for proper operation

  11. 11. Make sure the park brake is fully engaged and released as intended

  12. 12. Check the Vehicle's Ground

    Ensure that the ground connections related to the park brake switch are secure and free of corrosion

  13. 13. Clear the Code and Test Drive

    After performing the above checks and repairs, clear the trouble code using an OBD-II scanner

  14. 14. Take the vehicle for a test drive to see if the code returns

  15. 15. Consult a Professional

    If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician for further diagnosis.Additional Considerations

  16. 16. Software Updates

    In some cases, a software update from the manufacturer may resolve issues related to the park brake system

  17. 17. Component Replacement

    If the park brake switch or associated components are found to be faulty, replacing them may be necessary. By following these steps, you should be able to identify and resolve the issue related to the C1162 code