Wiring a U.S.A. Boat Trailer to a 9 Wire European Trailer Plug
Question:
Ok the 9 wires from the flat plug are: White, White/Yellow and White/Green are Earth No.3 (was female plug) The next 3 wires are: Brown, Brown/Yellow and Brown/Green going to No.5 Tail light (was male plug) The next one is Yellow No.1 left indicator (was male plug) The next one is Green No.4 right indicator (was male plug) The next one is Blue No.2 normally AUX or No.6 normally red for brakes (was male plug) The Brown/yellow left and the Brown/green right must be side indicators could not make it out yet. Even WESBAR the manufacturer was not able to help? Strange. Thank you for helping me.
asked by: Jurgen B
Expert Reply:
The 5-Way connector on your boat will be wired as follows. Green is right turn/brake, yellow is left turn/brake, brown is running lights (both sides), white is the ground or earth connection, and the blue wire is the reverse lockout or reverse lights. I searched for a connector on the internet that matches your 9-wire connector and came up with nothing.
I would recommend using a circuit tester, item # PTW2993, and wire by function only. Have a helper activate all of the various functions that you need for the trailer and test the wires until you get all of the wires needed identified. Since the boat carries the brake and turn signal on the same wire you will need a converter, item # 119178, to convert your vehicles European system down to a 4-wire system. You would then cut the 4-Way connector off of the converter and wire a 5-Way connector, item # HM37908 in its place connecting the blue wire directly to the reverse light circuit or reverse light circuit, whichever is needed.
![Bob G](https://images.etrailer.com/static/images/catg/people/287_tn.jpg)
Products Referenced in This Question
Upgraded Circuit Protected Tail Light Converter with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- 1-1/2 Feet Long
- Universal Fit
- 4 Flat
- Tekonsha
more information >
Hopkins Wiring Harness with 5-Pole Flat Trailer Connector - Vehicle End - 5' Long
- Trailer Wiring
- Trailer Connectors
- Vehicle End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 5 Flat
- Hopkins
more information >
Product Page this Question was Asked From
5-Flat Trailer End 48" Harness
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 5 Flat
- Draw-Tite
more information >
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Juergen
2/10/2010
Ok the 9 wires from the flat plug are: White, White/Yellow and White/Green are Earth No.3 (was female plug) The next 3 wires are: Brown, Brown/Yellow and Brown/Green going to No.5 Tail light (was male plug) The next one is Yellow No.1 left indicator (was male plug) The next one is Green No.4 right indicator (was male plug) The next one is Blue No.2 normally AUX or No.6 normally red for brakes (was male plug) The Brown/yellow left and the Brown/green right must be side indicators could not make it out yet. Even WESBAR the manufacturer was not able to help? Strange. Thank you for helping me.