2003 Mazda Mazda6 "u0100" Questions

What do these codes U0100, U0155, U0101 and P2187 mean for my mazda? had a vacuum hose replaced to fix the P2187 code. now i have all 4 of these codes coming up 2 weeks later. Note: i had fuel pump ...

...i have a 04 mazda 6. after a fuel stop the car went into third gear and would not come out. code u0100. the batt light and check eng light are on. i have no clue on how to fix it. please help the ...

mazda 6 2005 u0101,u0155,u0121,u0073,u0100 codes coming up just got the car 3 weeks ago ,already had the coil replaced and car was running great .turned the car on 3 days after they fix it and every ...

...replaced the motor and ECM. It will crank but won't start, I have 3 codes P062f, P0703, and U0100. Question edited for clarity The ECM and the engine need to be from the same vehicle and then ...

PLS DOES ANYONE KNOW THE MEANING OF THESE CODES AND WHAT I CAN POSSIBLY DO TO SOLVE THEM, U0100 AND U0001 Try these write ups I found. It is too much to reprint and it gives credit to the author. http

I keep getting DTC codes u0100 & u2101 I know what they are..lost comm & incompatible config.. how can I fix it or what is causing it?? the steering is heavy and have no center/on position feel. U0100

Im looking for the definition to code U0100. U0100 - Lost Communication With Engine Control Module (ECM)

toyota codes u0100 and u0101 Does anyone knows what these codes mean U0100 means lost of communication with ECM/PCM U0101 means lost of communication with TCM

trouble code P0700 & U0100 What make vehicle ? P0700 is a code for transmission problem . U0100 is a problem on the serial data bus or a module on the bus .

how do you fix a U0100 code on a 203 Mazda 6 car tries to start but dosent code u0100 refers to data bus, engine control module(ECM) A --no communication check all wires and connections replace the ...