WOMS
B code body Medium severity

B2357 Driver Window Down Current Sense Low Circuit Failure

The OBD2 code B2357 indicates a malfunction in the driver's window motor circuit, specifically a low current sense condition, suggesting that the window motor is not drawing the expected amount of current when...

Definition

The OBD2 code B2357 indicates a malfunction in the driver's window motor circuit, specifically a low current sense condition, suggesting that the window motor is not drawing the expected amount of current when attempting to lower the window

Common causes

  • Faulty window motor
  • Damaged wiring or connectors
  • Failed window switch
  • Short circuit in the window circuit
  • Ground connection issues
  • Faulty body control module (BCM)
  • Corroded terminals or connectors
  • Mechanical obstruction in the window mechanism

Common misdiagnoses

  • Faulty window motor
  • Bad window switch
  • Wiring issues or shorts
  • Faulty body control module (BCM)
  • Incorrectly installed window regulator
  • Battery or charging system problems
  • Ground connection issues

Troubleshooting steps

  1. 1. Check the Window Switch:

    Inspect the driver window switch for any signs of damage or wear

  2. 2. Test the switch for proper operation. You can use a multimeter to check for continuity when the switch is pressed

  3. 3. Inspect Wiring and Connectors:

    Examine the wiring harness and connectors associated with the window motor and switch for any signs of damage, corrosion, or loose connections

  4. 4. Look for frayed wires or broken connectors that could cause a poor connection

  5. 5. Test the Window Motor:

    Use a multimeter to check the voltage at the window motor when the switch is activated. Ensure that the motor is receiving the correct voltage

  6. 6. If the motor is not receiving power, trace the wiring back to the switch and check for any breaks or shorts

  7. 7. Check for Ground Issues:

    Ensure that the window motor has a good ground connection. A poor ground can lead to low current readings

  8. 8. Use a multimeter to check the ground connection at the motor and ensure it is solid

  9. 9. Inspect the Window Regulator:

    Check the window regulator for any mechanical issues that could prevent the window from moving properly

  10. 10. Ensure that the window is not binding in the track and that the regulator is functioning smoothly

  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. Clear Codes and Test:

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

  13. 13. Test the window operation to see if the code returns

  14. 14. Consult Wiring Diagrams:

    If the issue persists, consult the vehicle's wiring diagrams to trace the circuit and identify any other components that may be involved

  15. 15. Professional Diagnosis:

    If you are unable to resolve the issue after these steps, consider seeking help from a professional mechanic or automotive technician who can perform more advanced diagnostics.Additional Notes: - Always ensure that the vehicle's battery is disconnected when working on electrical components to avoid shorts or shocks. - If you are not comfortable performing these checks, it is advisable to seek professional assistance to avoid further damage to the vehicle's electrical system