TCM replacement 2011 Mazda 3
 

Hello,
This is just a comment on my 2011 Mazda 3 TCM replacement. My car has 143,768 miles when the Check engine light, Dynamic Traction control and AT lights intermittently turns on and off. Diagnostic shows U0100 "Lost communication with ECM/PCM A". I took the car to the dealership and they replaced the TCM for free. They said that it is still covered by the warranty. A mechanic told me that it is covered up to 150,000 miles.