U0101

The U0101 code indicates a "Lost Communication with Transmission Control Module (TCM)" issue in the 2019-present Toyota RAV4. This code suggests that the Engine Control Unit (ECU) is unable to communicate with the TCM, leading to potential drivability problems.

Error code U0101 on a 2019-present Toyota RAV4 indicates a communication issue between the Engine Control Module (ECM) and the Transmission Control Module (TCM).

Error code U0101 indicates a loss of communication with the Transmission Control Module (TCM) on the Toyota RAV4 XA50 (2019-2024). This can lead to transmission-related issues, impacting vehicle performance.

The U0101 code in a 2013-2018 Toyota RAV4 XA40 indicates a loss of communication with the Transmission Control Module (TCM), which can hinder the vehicle's ability to shift properly and may affect overall driveability.

The U0101 error code indicates a loss of communication with the Transmission Control Module (TCM) in a Toyota RAV4 XA40, potentially affecting transmission performance and vehicle drivability.