2006 Mazda3, CEL and AT lights are on, code is U0101, vehicle is not shifting correctly

Question

2006 Mazda Mazda3, CEL and AT lights are on, code is U0101, vehicle is not shifting correctly.

Answer 1

Hi there,

This code indicates an issue with the TCM. Here is some info for you.

U0101 MAZDA - Lost Communication With Transmission Control Module

Read more: https://www.autocodes.com/u0101_mazda.html