1989 Mazda 626 "u0100" Questions

...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)

no start and code u0100 car was starting but now will not turn starter motor and will not start. code u0100 came up That means that the computer on the car is not working because it cannot communicate

sATURN CODE U0100 ECM/PCM A" engine-codes.com/U0100

dtc u0100 also jeep turns over but wont run did you scan the PCM? with a scan tool and then report all errors? big fail if not. U0100 - Lost Communication With Engine Control Module

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 ...