Q: 2014 jeep patriot reading code u 0401. Jeep wont accelerate when given gas. Traction control light blinks and lightning bolt light

The U0401 code broadly identifies "communication errors" in the vehicle’s controller area network (CAN). In your circumstance, because the electronic throttle control (ETC) warning light has come on, an attempt should be made to diagnose the ETC system first because a cause of "communication errors" (U0401) is faulty sensor output data (such as potentially from the ETC) on the CAN. If and once the ETC system is ruled out (or repaired, as needed), if the U0401 code still persists, a further diagnostic is performed. Prior to requesting service, you can try to reset the ETC system using the following steps: 1) Insert ignition key and turn to "ON" position but do not start the engine; 2) Wait for all the warning lights to go out. The check engine light may remain on; 3) Slowly depress the accelerator pedal all the way to the floor; 4) Slowly release the accelerator pedal until it is all the way back up at the rest position; 5) Turn the ignition key to "OFF" position; 6) Start the engine and test the throttle to see if the engine speed will throttle up. This procedure is typically applicable any time the battery is disconnected or replaced but may still be relevant in your case. If the above procedure does not resolve the issue, please request service and the responding certified mechanic will get your car operational for sure. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.