MBE941 Serial Interface Protocol Descriptions
This information is suitable for the older serial based ECUs.
We would recommend that you only use a laptop/computer with a serial port which is fitted as standard when using our mapping leads or professional mapping kits, since you are likely to experience problems when using a USB to serial convertor. The main reason for this is that serial port technology is now very old & not supported by computer manufacturers, in addition every Window update appears to make the computers less compatible with such adaptors..
If you do have connection problems of this type, we would recommend you contact an IT expert for assistance as we cannot offer support for this issue because of the large variety of computer set-ups & operating systems that are available.
Serial technology has become obsolete as far as computer manufacturers were concerned quite sometime before this, so now all our current ECUs use USB to CAN technology. We have one engineer at MBE whose main task is to try to keep up with the updates that Windows carry out on virtually a daily basis to make sure our current technology remains exactly that. Therefore it is impossible to make discontinued ECUs compatible with Window7/USB combination.
Due to the serial based ECUs now being very old and now longer supported. We have provided as much information as possible in this section and the password for the Advanced level is 'extras'. The Master level password is 'maximum'.
If you feel this is beyond your skills, you will need to find one of our dealers who has the equipment and is still able to work on these older type ECUs.