U1580 – Module Communication Failure

The ODBII code U1580 indicates a “Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules.

The severity of ODBII code U1580 is moderate.

Common Causes For: U1579 Invalid Data Received from Vehicle Communication Bus.

• Faulty wiring or connectors
• Failed or malfunctioning control module
• Poor ground connections
• Corrupted software or firmware in the module
• Interference from aftermarket devices
• Low battery voltage or weak battery
• Communication network issues (e.g., CAN bus problems)
• Damaged or corroded pins in connectors

Common misdiagnosis for U1580 U1580: “Module Communication Failure”

• Faulty wiring or connectors
• Defective control module
• Software issues or updates needed
• Battery or power supply problems
• Grounding issues
• Intermittent communication issues
• Other unrelated module failures

Common Troubleshooting Steps

The OBD-II code U1580 indicates a “Module Communication Failure,” which typically means that there is a problem with communication between various control modules in the vehicle. Here are some common troubleshooting steps to diagnose and resolve this issue:

• Check for Other Codes: Use an OBD-II scanner to check for any additional trouble codes. Sometimes, U1580 may be accompanied by other codes that can provide more context about the issue.
• Inspect Wiring and Connectors:
• Visually inspect the wiring and connectors associated with the affected modules. Look for signs of damage, corrosion, or loose connections.
• Pay special attention to the ground connections, as poor grounding can lead to communication issues.
• Check Power Supply: Ensure that the affected modules are receiving the proper voltage. Use a multimeter to check the power supply to the modules.
• Test Communication Lines:
• Use a scan tool to check the communication between modules. Some scan tools can perform a network test to see if modules are communicating properly.
• If possible, check the CAN (Controller Area Network) bus for continuity and proper signal levels.
• Inspect Modules:
• If a specific module is identified as having communication issues, inspect it for physical damage or signs of failure.
• If the module is removable, consider swapping it with a known good module to see if the problem persists.
• Check for Software Updates: Sometimes, communication issues can be resolved with a software update. Check with the manufacturer or a dealership to see if there are any updates available for the vehicle’s control modules.
• Clear Codes and Test Drive: After performing any repairs or inspections, clear the trouble codes and take the vehicle for a test drive to see if the code reappears.
• Consult Technical Service Bulletins (TSBs): Check for any TSBs related to the U1580 code for your specific vehicle make and model. Manufacturers may have issued guidance on common issues and fixes.
• Professional Diagnosis: If the issue persists after performing the above steps, it may be necessary to consult a professional mechanic or dealership for further diagnosis. They may have specialized tools and knowledge to pinpoint the problem. By following these steps, you can systematically troubleshoot the U1580 code and identify the underlying issue causing the module communication failure.