U1060 Loss of Communication with the Vehicle Control Module
The OBD2 code U1060 indicates a loss of communication with the Vehicle Control Module, suggesting that the module is not responding or is unable to communicate with other modules in the vehicle's network
Definition
Common causes
- Faulty wiring or connectors
- Failed Vehicle Control Module (VCM)
- Corroded or damaged connectors
- Poor ground connections
- Faulty or damaged communication lines
- Issues with other modules in the network
- Software or firmware issues
- Battery or power supply problems
Common misdiagnoses
- Faulty Vehicle Control Module (VCM)
- Wiring issues or damaged connectors
- Faulty or corroded ground connections
- Malfunctioning sensors
- Issues with the powertrain control module (PCM)
- Problems with the body control module (BCM)
- Faulty communication lines (CAN bus issues)
- Battery or charging system problems
- Software or firmware issues in the control modules
- Intermittent electrical connections
Troubleshooting steps
-
1. Check for Additional Codes
Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide more context about the issue
-
2. Inspect the Wiring and Connectors
Visual Inspection: Look for damaged, frayed, or corroded wiring and connectors related to the Vehicle Control Module (VCM) and other modules
-
3. Connector Integrity
Ensure that all connectors are securely attached and free of dirt or corrosion
-
4. Check Power and Ground
Power Supply: Verify that the VCM is receiving the correct voltage. Use a multimeter to check the power supply to the module
-
5. Ground Connections
Ensure that the ground connections for the VCM are secure and free of corrosion
-
6. Inspect the Vehicle Control Module
Module Condition: Check for any signs of physical damage to the VCM
-
7. Reprogramming
If applicable, consider reprogramming or updating the software of the VCM
-
8. Check for Communication Issues
CAN Bus Integrity: Use a scan tool to check the communication on the CAN bus. Look for any interruptions or faults in communication between modules
-
9. Module Functionality
Test other modules in the vehicle to ensure they are communicating properly. If other modules are also not communicating, the issue may be with the CAN bus or the power supply
-
10. Perform a Hard Reset
Disconnect the vehicle's battery for a few minutes to reset the modules. Reconnect and see if the code reappears
-
11. Check for Environmental Factors
Ensure that there are no external factors affecting the VCM, such as water intrusion or excessive heat
-
12. Consult Technical Service Bulletins (TSBs)
Check for any TSBs related to the specific make and model of the vehicle. Manufacturers may have known issues and solutions for U1060
-
13. Professional Diagnosis
If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized tools and knowledge to diagnose complex communication issues
-
14. Replace the Module (if necessary)
If all other troubleshooting steps fail and the VCM is determined to be faulty, replacement may be necessary.Conclusion Always remember to take safety precautions when working on a vehicle's electrical system. If you're not comfortable performing these steps, it's best to consult with a professional technician