U2460 – BECM Communication Fault

The ODBII code U2460: BECM Communication Fault indicates a communication issue between the Body Electronic Control Module (BECM) and other control modules in the vehicle.

The severity of ODBII code U2460: BECM Communication Fault is generally considered moderate to severe.

Common Causes For: U2459 Control Module Communication Bus Off.

• Faulty Body Control Module (BCM)
• Damaged wiring or connectors
• Poor ground connections
• Corrupted software or firmware in the BCM
• Communication network issues (CAN bus problems)
• Faulty sensors or actuators connected to the BCM
• Low battery voltage or power supply issues
• Interference from aftermarket accessories or modifications

Common misdiagnosis for U2460 U2460: BECM Communication Fault

• Faulty Body Control Module (BCM)
• Wiring issues or shorts in the communication lines
• Faulty or corroded connectors
• Battery or power supply issues
• Faulty sensors or actuators related to the BECM
• Software or firmware issues in the BECM
• Other communication faults in the vehicle’s network (e.g., CAN bus issues)

Common Troubleshooting Steps

The OBD-II code U2460 indicates a communication fault with the Body Control Module (BCM) or Battery Energy Control Module (BECM). This code is often associated with issues in the communication network of the vehicle, particularly in systems that rely on CAN (Controller Area Network) communication. Here are some common troubleshooting steps to diagnose and resolve the U2460 code:

• Check for Additional Codes: Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide additional context for the issue.
• Inspect Wiring and Connectors: Visually inspect the wiring and connectors related to the BECM and BCM. Look for signs of damage, corrosion, or loose connections.
• Pay special attention to the ground connections, as poor grounding can lead to communication issues.
• Test the BECM and BCM: If possible, perform a functional test of the BECM and BCM using a scan tool. Check for any abnormal readings or failures.
• If you have access to a known good module, consider swapping it temporarily to see if the issue resolves.
• Check the CAN Bus: Use a multimeter or oscilloscope to check the CAN bus signals. Ensure that the voltage levels are within the expected range (typically around 2.5V to 3.5V).
• Look for any short circuits or open circuits in the CAN wiring.
• Inspect Other Modules: Check other modules on the CAN network for faults. A malfunctioning module can disrupt communication and trigger the U2460 code.
• Ensure that all modules are properly powered and grounded.
• Clear Codes and Test Drive: After performing inspections and repairs, clear the trouble codes using the OBD-II scanner.
• Take the vehicle for a test drive to see if the code reappears. Monitor the vehicle’s systems for any irregularities.
• Check for Software Updates: Check if there are any software updates available for the BECM or BCM. Sometimes, manufacturers release updates to fix known communication issues.
• Consult Technical Service Bulletins (TSBs): Look for any TSBs related to the U2460 code for your specific vehicle make and model. Manufacturers may have documented common issues and fixes.
• Professional Diagnosis: If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized diagnostic tools and experience with your vehicle.Conclusion Troubleshooting a U2460 code can be complex due to the nature of vehicle communication systems. Following these steps systematically can help identify and resolve the underlying issue. Always refer to the vehicle’s service manual for specific procedures and specifications related to your vehicle.