B1610 – Illuminated Entry Input Short Circuit To Ground

The ODBII 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.

The severity of ODBII code B1610 is generally considered moderate.

Common Causes For: B1609 Illuminated Entry Input Short Circuit To Battery

• 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 misdiagnosis for B1610 Illuminated Entry Input Short Circuit To Ground

• 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

Common Troubleshooting Steps

When dealing with an OBD-II code B1610, which indicates an “Illuminated Entry Input Short Circuit to Ground,” there are several common troubleshooting steps you can follow to diagnose and potentially resolve the issue. Here’s a structured approach:

• 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.
• 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.
• **Switches: Check the door switches (e.g., door ajar switches) for proper operation and any signs of damage.
• 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.
• 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.
• 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.
• 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.
• 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.
• Inspect Fuses: Check the relevant fuses related to the BCM and illuminated entry system. Replace any blown fuses and see if the code returns.
• 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.
• 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
• Consult Service Manual: If the issue persists, consult the vehicle’s service manual for specific diagnostic procedures related to the B1610 code for your make and model.1
• 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.