Ethernet

Ethernet Wiring

For wiring information click here: Ethernet Wiring

IP Configuration

The Emtune software will communicate to the ECU over a static IP address.

Set your IP and subnet to the following on the Ethernet port you will be using on your PC.

IP: 192.168.1.50

Subnet: 255.255.255.0

With successful connection, the Emtune Welcome screen will display “ECU DETECTED” in blue in the bottom left corner as can be observed in the background in the above example.

Auto IP Config

Emtune 1.20.0 and onwards includes a wizard to help configure the ethernet connection (Bottom right of the splash screen)

The wizard may fail to configure the adapter if a previously used adapter was set to the same IP address. Windows can be very finicky about this.

This will be visible when an ECU is no connected / detected.

When the ECU is connected & the IP address correctly configure, the software will acknowledge this in the bottom left corner.

The process to manually configure windows 11+ is as follows:

Manual IP Config

Info on configuring the IP address for different windows version can be found here:

Troubleshooting

When a correctly configured Ethernet port is in use together with a known good communication cable and you remain unable to establish a connection.

Power supply to the ECU must be verified. That is, the next step is to determine if the ECU is powering up.

Without voltage to the ECU supply pin.

The ECU will fail to power up thereby making communication impossible.

For the KV Series ECU’s this is pin D1

For the SL series ECU’s, this is pin B1

If 12V is not present at D1/B1 with ignition ON, you will need to determine the power supply fault.

Windows 11

Right click on the Network Connection icon in the system tray. It may appear as a wired connection or a wifi icon.
Click on Ethernet
Expand the settings for your ethernet adapter and click on the Edit button for IP Assignment.
Set it to Manual, turn on IPv4, and enter the emtron IP Address and Subnet mask.
Click Save.
Done. Connect the Emtron Ethernet cable.

Windows 10

To setup the Ethernet on Windows 10 ready for the ECU connection use the following steps.

Left Click Windows Icon - Bottom Left corner

Left Click Settings Icon - 2nd from bottom on Left

Left Click “Network & Internet” - Top Right

Left Click “Ethernet” - 4th from Top on the Left

Left Click “Change Adapter Options” - Top Right

Right Click “Ethernet”

Left Click “Properties”

Select “Internet Protocol Version 4 (TCP/IPv4) and Left Click “Properties”

Use the following IP address

Left Click “OK” and exit, the process is complete
Done. Connect the Emtron Ethernet cable.

Windows 8.1

To setup the Ethernet on Windows 8.1 ready for the ECU connection use the following steps.

Type “View Network Connections” into the search window, accessed from the start menu. Windows should provide a list of results. Select View Network Connections.

Or alternatively if the search function doesn’t provide this:

Start > Control Panel > Network and Sharing Center. Once in this menu select “Change Adapter Settings”

Once in this menu select “Change Adapter Settings”

The below menu should be visible. Select “Ethernet”

Right click to Access Properties

Select TCP/IPv4 then click Properties

Select “Use the following IP address” and enter in the address 192.168.1.50. The Subnet should automatically default to 255.255.255.0. Click OK.

Done. Connect the Emtron Ethernet cable.

Windows 7

To setup the Ethernet on Windows 7 ready for the ECU connection use the following steps.

Type “View Network Connections” into the search window, accessed from the start menu. Windows should provide a list of results. Select View Network Connections.