U1711 – Transmission Control Module Communication Error

By Fixitfor.us |
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

The ODBII code U1711 indicates a communication error between the Transmission Control Module (TCM) and other control modules in the vehicle, suggesting a potential issue with data transmission or connectivity.

The severity of ODBII code U1711 is moderate to severe.

Common Causes For: U1710 U1710: Transmission Control Module Communication Error

  • Faulty Transmission Control Module (TCM)
  • Damaged wiring or connectors
  • Poor ground connections
  • Faulty Engine Control Module (ECM)
  • Software issues or corruption
  • Low transmission fluid levels
  • Electrical interference
  • Failed or malfunctioning sensors

Common misdiagnosis for U1711 U1711: Transmission Control Module Communication Error

  • Faulty Transmission Control Module (TCM)
  • Wiring or connector issues
  • Faulty Engine Control Module (ECM)
  • Transmission fluid issues
  • Sensor malfunctions (e.g., speed sensors)
  • Battery or charging system problems
  • Software or programming issues
  • Grounding issues in the electrical system

Common Troubleshooting Steps

The OBD-II code U1711 indicates a communication error between the Transmission Control Module (TCM) and other control modules in the vehicle. Here are some common troubleshooting steps to diagnose and resolve this issue:

  • Check for Additional Codes: Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are other issues present.
  • Inspect Wiring and Connectors: **Visual Inspection: Check the wiring harness and connectors related to the TCM for any signs of damage, corrosion, or loose connections.
  • **Repair or Replace: If any damaged wires or connectors are found, repair or replace them as necessary.
  • Check Power and Ground: **Power Supply: Ensure that the TCM is receiving the correct voltage. Use a multimeter to check the power supply to the TCM.
  • **Ground Connections: Verify that the ground connections for the TCM are secure and free of corrosion.
  • Inspect the TCM: **Physical Condition: Check the TCM for any signs of physical damage or water intrusion.
  • **Reprogramming: If the TCM appears to be functioning but is still throwing the code, it may need to be reprogrammed or updated.
  • Check for Communication Issues: **CAN Bus Communication: Use a scan tool to monitor the CAN bus communication. Ensure that the TCM is communicating with other modules (like the Engine Control Module).
  • **Network Integrity: Check for any issues in the CAN bus wiring, such as shorts or opens.
  • Test the TCM: If all other checks are satisfactory, the TCM itself may be faulty. Consider testing the TCM in another vehicle (if possible) or replacing it with a known good unit.
  • Clear Codes and Test Drive: After performing repairs, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.
  • Consult Technical Service Bulletins (TSBs): Check for any manufacturer-specific TSBs related to the U1711 code or TCM issues for your vehicle make and model.
  • Seek Professional Help: If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician who has experience with transmission control systems. By following these troubleshooting steps, you can systematically identify and resolve the underlying issue causing the U1711 code.

Leave a Comment

You must be logged in to post a comment.