I suspect the code is U0101, meaning communication with the transmission control module has been lost. “UA101” is not a standard code. For U0101, check:
1. Battery condition and charging voltage
2. Transmission-control and ignition fuses
3. TCM power supplies and grounds
4. Wiring/connectors at the transmission
5. CAN communication wiring
Here is the location of the fuses for the TCM which is on the left side of the engine compartment so you can check it out after the battery is checked/replaced. Let me know please.
Sep 8, 2026 at 10:04 AM
(Merged)