Tow connector wiring

htmorelli · Mar 9, 2019

hi guys

I would like to install a connector for tow bar....
I have a 5 pin origibal connector(photo)on rear section of the car but my connector have 7 wires
Somebody can help me?

tottot · Mar 9, 2019

Did you find that connector above/behind the rear crossmember? Mine has that one and I have never known it's use.
Wire the trailor line to the main loom in the rear of the tub UK drivers side. Just remove the cover plate.
Do not use "scotch clip connectors" they are nothing but trouble.

htmorelli · Mar 9, 2019

1.and 2. Picture is the original connactor which is behind the ceossmember .... it has 5 wires....3. Picture are the wires from the connector which will be near the towing bar but there are 7 wires

tottot · Mar 9, 2019

Go in behind said panel,here connections can be made in a dry area.
Match the colours.
1 yellow = left flasher
2 blue fog = lamp
3 white = earth
4 green = right flasher
5 brown = right sidelamp
6 red brake = lamps.
7 black left = sidelamp

The five wire system was used on older trailors but does not suit modern ones with split sidelamps and fog lamp.

Si Click · Mar 9, 2019

Buy an adapter.

htmorelli · Mar 9, 2019

Si Click said:
Buy an adapter.

I didnt find the adapter....can you send a link eith it?

htmorelli · Mar 9, 2019

tottot said:
Go in behind said panel,here connections can be made in a dry area.
Match the colours.
1 yellow = left flasher
2 blue fog = lamp
3 white = earth
4 green = right flasher
5 brown = right sidelamp
6 red brake = lamps.
7 black left = sidelamp

The five wire system was used on older trailors but does not suit modern ones with split sidelamps and fog lamp.

This is not the main connection which is at the end of the car and connect with the trailer socket.....this is behind the crossmember

Si Click · Mar 9, 2019

htmorelli said:
This is not the main connection which is at the end of the car and connect with the trailer socket.....this is behind the crossmember

Ahh, apologies.

Retroanaconda · Mar 9, 2019

Not sure what that small plug is on the car but it’s not the towing wiring. On earlier models the towing electrics plug into all the separate connection blocks behind the right hand rear lights.

Later on they moved to a single plug but if you can’t find one yours must be too early.

htmorelli · Mar 9, 2019

Yes, its an early 89 defender but what is that plug ?

ivancrx · Mar 10, 2019

The connector is for a duel fuel tank from what I found when doing the wiring on my 90.

tottot · Mar 10, 2019

Thanks ivancrx,For nearly 30 years I| have wonderd

what that plug is for on my landy.

htmorelli · Mar 10, 2019

Thanks much!!

FlyingPete · Mar 11, 2019

On an '89 they will be individual junction blocks behind the right rear lights with bullet connectors. Simply join the trailer cable to these wires:
1 Yellow>green/red- left indicator
2 Blue> red/yellow- fog lamp
3 White> black - ground
4 Green> green/white- right indicator
5 Brown> red/white or red/orange- right tail light
6 Red> green/purple- brake lights
7 Black> red/black- left tail light

The reverse light is on pin 8 of a 13-pin plug, or pin 1 of the grey 7-pin plug, and will be green/brown.

You will also find a purple wire which can be used to charge a trailer battery/power a caravan fridge when connected to the relevant pins via a voltage-sensing relay.

htmorelli · Mar 11, 2019

Thanks,i installed like you tell

Tow connector wiring

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