Page 1 of 1

EV-Diagnostics Software

Posted: Thu Jul 18, 2019 8:19 am
by jimh
To use EV Diagnostics software you need six components:

  1. the software, a product of Evinrude and available through Evinrude dealers
  2. a host terminal to run the software, which must be run under the Windows operating system
  3. a serial port on the host terminal that supports RS-232 serial communication using a DB9M connector
  4. if the host has no serial port (and most do not these days) then an adapter, usually in the form of a USB-to-RS232 bidirectional converter
  5. if using a USB-to-RS232 adapter then you MUST have the appropriate driver software for the adapter that will work with the version of Windows operating system running on the host terminal
  6. a special cable to connect the EMM diagnostic port to the RS232 port.
The only item in the list above that is proprietary and must be obtained from an Evinrude dealer is the software. Prices vary.

Most owners of an E-TEC will own a Windows OS host terminal; you can buy a laptop for about $300 if you don’t have one already.

A USB adapter costs no more than $40, and probably as little as $15. In my experience the Keyspan USA-19 HS adapter works well. This device is used in many professional applications and has excellent driver support. See: ... r~USA19HS/

The cable can be made easily; many years ago I published clear and illustrated instructions. Or you can buy a cable for $40 to $50. See:


Now you are ready to use the software. You will need training and will have to learn how to use it. The software was not intended for every E-TEC owner to have and use casually and without any training. The proficiency at using the software cannot be predicted on an individual basis. The software can alter many settings in the engine, and it should be used with caution.

A typical E-TEC engine owner will use only a few functions in the software, such as:

  • creating an Engine History Report
  • setting the oil use rate
  • calibrating the NMEA 2000 TRIM values
  • enabling the water pressure sensor
  • setting the INSTANCE of the EMM of the E-TEC if used with other E-TEC engines in a twin, triple, or quadruple rig.

Re: EV-Diagnostics Software

Posted: Wed Aug 28, 2019 8:35 am
by jimh
Regarding using EV-Diagnostics software with a MacOS device, I cannot offer any up-to-date advice for emulation of Windows OS on the current versions of MacOS. About ten years ago I did have success running an emulator with older MacOS versions (MacOS 10.6), but I have not tried this with any current MacOS versions (MacOS 10.12).