U0247 Lost Communication With "Seat Control Module F

Definition

Common causes

• Faulty Seat Control Module
• Wiring issues (damaged, frayed, or corroded wires)
• Poor connections or loose connectors
• Faulty CAN bus communication
• Blown fuse related to the seat control system
• Software issues or programming errors
• Power supply problems to the seat control module

Common misdiagnoses

• Faulty Seat Control Module
• Wiring issues or shorts in the harness
• Faulty Body Control Module (BCM)
• Corrupted software or firmware in the modules
• Issues with the CAN bus communication
• Faulty connectors or terminals
• Low battery voltage or power supply issues
• Other related module failures (e.g., airbag module)

Troubleshooting steps

1. 1. Check for Other Codes

   Use an OBD-II scanner to check for any additional trouble codes. Sometimes, multiple codes can provide more context about the issue

2. 2. Inspect Wiring and Connectors

   Visual Inspection: Check the wiring harness and connectors related to the seat control module for any signs of damage, corrosion, or loose connections

3. 3. Connector Pins

   Ensure that the pins in the connectors are not bent or corroded

4. 4. Check Power and Ground

   Power Supply: Verify that the seat control module is receiving the correct voltage. Use a multimeter to check the power supply at the module

5. 5. Ground Connection

   Ensure that the ground connection for the seat control module is secure and functioning properly

6. 6. Inspect the Seat Control Module

   Module Condition: Check the seat control module for any physical damage or signs of failure

7. 7. Reprogramming

   If applicable, consider reprogramming or resetting the module using a compatible scan tool

8. 8. Test Communication

   CAN Bus Communication: Use a scan tool to check if the seat control module is communicating with other modules on the CAN bus. If other modules are also not communicating, there may be a broader network issue

9. 9. Loopback Test

   Perform a loopback test on the CAN bus to ensure it is functioning correctly

10. 10. Check for Intermittent Issues

    Temperature and Movement: Sometimes, issues can be intermittent. Check if the problem occurs under specific conditions, such as temperature changes or when the seat is adjusted

11. 11. Inspect Related Components

    Other Modules: Check other related modules (like the Body Control Module) for faults that could affect communication

12. 12. Fuses

    Inspect fuses related to the seat control system to ensure they are intact

13. 13. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the seat control module or communication issues for your specific vehicle make and model. Manufacturers may have known fixes or updates

14. 14. Replace the Module (if necessary)

    If all other troubleshooting steps fail and the module is determined to be faulty, consider replacing the seat control module

15. 15. Clear Codes and Test Drive

    After performing repairs, clear the codes and take the vehicle for a test drive to see if the code returns.Conclusion If you are not comfortable performing these steps or if the issue persists after your troubleshooting, it may be best to consult a professional mechanic or technician who has experience with automotive electrical systems and OBD-II diagnostics