what do i do to trouble shoot code error U0100

Question

I HAVE DIAGONISED MY MAZDA SP 2007 AND GET THE ERROR CODE U0100 AND MESSAGE SAYS MISSING THE CAN MESSAGE FROM THE PCM,,IT REFUSE TO START,,AND THE KEY WARNING SIGNAL IS BLING WHILE THE KEY IS IN ACC

Answer 1

Hi there

This code means there is a loss of communication with the PCM. This is usually the result of a bad PCM or a wiring issue. Here is some info for you.

U0100 MAZDA - Lost Communication With Engine Control Module

Read more: https://www.autocodes.com/u0100_mazda.html