One problem related to engine engine control module (ecu/ecm) has been reported for the 2014 Ford Fiesta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Ford Fiesta based on all problems reported for the 2014 Fiesta.
The contact owns a 2014 Ford Fiesta. The contact stated that while his wife was driving at an undisclosed speed, the vehicle jerked, and an abnormal sound was coming from the engine. Several unknown warning lights were illuminated, and unknown messages were displayed. The contact's wife continued driving at slower speeds. The vehicle was towed to an independent mechanic who diagnosed that the transmission control module (tcm) and engine control module (ecm) had failed and needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer; however, the vehicle was not diagnosed or repaired due to the cost. The manufacturer was not notified of the failure. The failure mileage was approximately 69,000.