U1710 – Transmission Control Module Communication Error

The ODBII code U1710 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 U1710 is moderate to severe.

Common Causes For: U1709 CAN Communication Bus Fault.

• Faulty Transmission Control Module (TCM)
• Damaged wiring or connectors
• Poor electrical connections
• Faulty Engine Control Module (ECM)
• Software issues or bugs
• Low transmission fluid levels
• Corroded terminals
• Malfunctioning sensors related to transmission
• Issues with the vehicle’s CAN bus system
• Battery or charging system problems

Common misdiagnosis for U1710 U1710: Transmission Control Module Communication Error

• Faulty Transmission Control Module (TCM)
• Wiring issues or damaged connectors
• Faulty Engine Control Module (ECM)
• Low transmission fluid levels
• Faulty sensors (e.g., speed sensors)
• Software issues or outdated firmware
• Battery or charging system problems
• Grounding issues
• Transmission solenoid failures
• Internal transmission problems

Common Troubleshooting Steps

The OBD-II code U1710 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 Other Codes: Use an OBD-II scanner to check for any additional trouble codes. Sometimes, related codes can provide more context for the issue.
• Inspect Wiring and Connectors:
• Visually inspect the wiring harness and connectors associated with the TCM. Look for signs of damage, corrosion, or loose connections.
• Ensure that all connectors are securely plugged in and that there are no bent pins.
• Check Power and Ground:
• Verify that the TCM is receiving the correct voltage and ground. Use a multimeter to check the power supply and ground connections to the TCM.
• If there are issues with power or ground, trace the wiring back to the source to identify any faults.
• Test the TCM:
• If the wiring and connections are good, the TCM itself may be faulty. You can test the TCM by checking for proper operation using a scan tool or by replacing it with a known good unit.
• Some vehicles may require reprogramming or calibration of the TCM after replacement.
• Check for Communication Issues:
• Use a scan tool to check if the TCM is communicating with other modules (like the Engine Control Module, ABS, etc.). If other modules are not communicating, there may be a network issue.
• Inspect the CAN bus wiring for shorts, opens, or other issues.
• Inspect Fuses:
• Check the fuses related to the transmission and TCM. A blown fuse can interrupt communication.
• Look for Software Updates:
• Check if there are any software updates available for the TCM or other related modules. Sometimes, manufacturers release updates to fix communication issues.
• Clear Codes and Test Drive:
• After performing any repairs or checks, clear the codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.
• Consult Service Manual:
• Refer to the vehicle’s service manual for specific diagnostic procedures related to the TCM and communication errors. This can provide additional insights and steps tailored to your vehicle.
• Seek Professional Help:
• If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who has experience with your specific vehicle make and model. By following these steps, you should be able to identify and resolve the communication error associated with the U1710 code.