WOMS
B code body Medium severity

B1610 Illuminated Entry Input Short Circuit To Ground

The OBD2 code B1610 indicates a short circuit in the illuminated entry input circuit, meaning there is an electrical fault causing the circuit to connect directly to ground, which can prevent the interior lights from...

Definition

The OBD2 code B1610 indicates a short circuit in the illuminated entry input circuit, meaning there is an electrical fault causing the circuit to connect directly to ground, which can prevent the interior lights from functioning properly when the vehicle is opened

Common causes

  • Damaged wiring or connectors
  • Faulty door switch
  • Short circuit in the wiring harness
  • Malfunctioning body control module (BCM)
  • Corroded connectors
  • Water intrusion or moisture damage
  • Faulty interior light circuit
  • Improper installation of aftermarket accessories

Common misdiagnoses

  • Faulty door switch
  • Wiring harness issues
  • Body control module (BCM) failure
  • Shorted wiring
  • Malfunctioning interior lights
  • Incorrectly installed aftermarket accessories
  • Grounding issues
  • Faulty keyless entry system

Troubleshooting steps

  1. 1. Understand the Code

    B1610 typically relates to the vehicle's body control module (BCM) and indicates that the illuminated entry system is detecting a short circuit to ground in the input circuit

  2. 2. Visual Inspection

    Wiring and Connectors: Inspect the wiring harness and connectors associated with the illuminated entry system. Look for frayed wires, corrosion, or loose connections

  3. 3. Switches

    Check the door switches (e.g., door ajar switches) for proper operation and any signs of damage

  4. 4. Check for Related Codes

    Use a scan tool to check for any other related trouble codes that may provide additional context or indicate other issues

  5. 5. Test the Door Switches

    Manually operate the door switches to see if they are functioning correctly. Use a multimeter to check for continuity when the switch is activated

  6. 6. Inspect the BCM

    Check the body control module for any signs of damage or corrosion. Ensure that it is securely connected and that there are no issues with the ground connections

  7. 7. Perform a Continuity Test

    With the vehicle off, use a multimeter to check for continuity in the wiring from the BCM to the illuminated entry input. Look for any shorts to ground

  8. 8. Check for Shorts

    With the vehicle powered on, use a multimeter to check for voltage at the illuminated entry input. If there is no voltage or if it is shorted to ground, trace the wiring back to find the source of the short

  9. 9. Inspect Fuses

    Check the relevant fuses related to the BCM and illuminated entry system. Replace any blown fuses and see if the code returns

  10. 10. Repair or Replace Components

    If you identify any damaged wiring, connectors, or switches, repair or replace them as necessary. If the BCM is faulty, it may need to be reprogrammed or replaced

  11. 11. Clear the Code and Test Drive

    After making repairs, clear the trouble code using a scan tool and take the vehicle for a test drive to see if the code returns.1

  12. 12. Seek Professional Help

    If you are unable to resolve the issue after these steps, consider seeking help from a professional mechanic or automotive technician who has experience with electrical systems. By following these steps, you should be able to diagnose and potentially fix the issue related to the B1610 code. Always ensure safety precautions are taken when working with vehicle electrical systems