Tow bars 2 tow cars problem

Kizmax

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Feb 20, 2014
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West coast ireand
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Mercedes cipro garage
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Has anyone got one of these a frames fitted and can help I have been on to the supplier and they are very unhelpful won't help anyone who buys a preowned a frame with the wiring diagram
Even refused to fit it because they didn't remove it
Has anyone got any idea how they wire up to the battery and motorhome socket etc :Doh:
 

pappajohn

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depending on the age of your van it may be equipt with a canbus system of lighting.

if so DO NOT connect directly to the wiring or rear lights....y o u will need either a vehicle specific wiring loom (usually extortionately priced) or a cheap universal bypass relay kit.

a bypass relay only has one live wire from the vans battery and a series of electronic relays.

when you turn on a light (tail/flasher/brake) a signal is sent to that lights relay which closes and makes the connection to the corresponding light on the trailer/toad.
the connection is directly to the battery....not that lights wiring.

direct connection to the light wires will blow the canbus module....and that is expensive.

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Last edited:

old-mo

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I have that system.. (Fitted by them)... and I think it is quite complicated, if it`s the same... :Sad:

Mine has the little computer and is attached to the brake pedal by a wire hawser working off the computer..

The system does not use the car`s battery for light`s and indicators, it comes direct from the motorhome.... hence the 13 pin plug..

The computer reads what you are doing in the M/Home.. as in braking and it works the car brakes..
 
OP
K

Kizmax

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Feb 20, 2014
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Mercedes cipro garage
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2010
Sounds good old- mo

Hi that sounds like the one I want to fit does yours have a motor that pulls a cable attached to the brake ,if yes could you please take a coulpe of pics of the wiring from the motor to the battery or the 13 pin socket ::bigsmile:
Cheers
Justin
 

old-mo

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Hi that sounds like the one I want to fit does yours have a motor that pulls a cable attached to the brake ,if yes could you please take a coulpe of pics of the wiring from the motor to the battery or the 13 pin socket ::bigsmile:
Cheers
Justin


Yes it has the wire from a motor.... which is I believe the brains box/computer to the whole installation..

I`ll give it a try later this morning... :thumb:

To be quite honest.... other than a little box with some electronic gizmo, I cannot see what is different on the battery,,, and whether I can find where the electrics is connected remains to be seen..

The instalation is all very neat and well hidden,,, but as said will give it a go.. :thumb:
 

old-mo

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Here you go... don`t think they are going to be any help...

Wiring is so well concealed, I just cannot see where any of it goes... :Sad:

The box thing on the top of the battery is to do with it... (I was advised to cover it, as it is susceptible to damp, hence the plastic bag taped over it)..


Mo.

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Kizmax

Free Member
Feb 20, 2014
52
10
West coast ireand
Funster No
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MH
Mercedes cipro garage
Exp
2010
Thanks old mo

Hi again mate thanks for that I have sussed out some of the wiring and looking at yours they vary a little bit, but I am sure I will get it working in the car as it is working on the bench , so a word to the wise if you are anticipating buying one of these secondhand make sure it's labeled before it's removed from the donor car
Cheers::bigsmile:
 
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