Help re fuse location for towbar

[uzsnowdrop]

Wonder if anyone who has a towbar fitted to Peugeot Boxer knows where the fuse may be ,
I know theres 3 fuse boxes in the van so any clue where to start would be helpful.
Thanks in advance !

 

[Mikeco]

There might not be a one off fuse, it depends how it’s been wired up and may rely on each individual fuse as built. The extra relays on mine are behind the right hand side rear light cluster accessed from the inside.

 

[uzsnowdrop]

Thanks Mikeco
Christ another fusebox…
Better get my glasses on…

 

[bobandjanie]

Our motorhome 2017 has the canbus system, with that the box you wire direct to the battery on it's own supply and you will find a fuse next to the battery, mine wasn't blown but pulling the fuse and inserting again reset the box.

I can't remember if our previous van was the same 2012. Bob.

 

[the1andonly]

I've got a new fuse box inthe battery box for the towbar.

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[dazandandrea]

As said depending what year and who fitted the towbar.
I found out that our is wired (2008 boxer) behind the near side rear light unit .
Might be worth looking there if you cant find anything else.

 

[uzsnowdrop]

Our motorhome 2017 has the canbus system, with that the box you wire direct to the battery on it's own supply and you will find a fuse next to the battery, mine wasn't blown but pulling the fuse and inserting again reset the box.

I can't remember if our previous van was the same 2012. Bob.

Bob, wheres the actual canbus box?

 

[uzsnowdrop]

Bob, wheres the actual canbus box?

Aaaar just youtubing and my last question is redundant ( stupid) I think…

 

[Wannabee]

I installed mine myself and used the dedicated wiring kit for CANBUS. They connect into the battery area with a bank of separate fuses for the various circuits.

Bear in mind the base vehicle doesn't have traditional fuses for many circuits, the CANBUS controls them and switches off anything it doesn't like the look of. I had a problem with the back lights of the van on a brand new trailer with various wild goose chases and fault combinations. It all worked fine for a few seconds until the CANBUS cut in and isolated parts of the circuits. The CANBUS resets by switching off and back on, no fuses blow. I tested with another trailer board and it all worked fine again. It didn't like the LED lights on just sidelights so I altered the wiring and it all works fine now. Can't remember the exact fault. But, it caused errors on the reversing, brake lights etc which were actually fine.

EDIT I've looked at my wiring instructions again and I seem to remember it was the MINIMUM 21watt for the fog lights that screwed it up. I'd disregarded this and that's where I went wrong. This is on an LED compliant wiring kit, the resultant resistance it was looking for was vastly different for an LED than incandescent. I put a standard 21w bulb instead in and all my problems went away...

What fault are you chasing if any?

 

[Speve]

We have a towbar control unit in the vehicle battery compartment with two fuses in it it also connected to canbuss.

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[uzsnowdrop]

Found this behind rear nearside

I installed mine myself and used the dedicated wiring kit for CANBUS. They connect into the battery area with a bank of separate fuses for the various circuits.

Bear in mind the base vehicle doesn't have traditional fuses for many circuits, the CANBUS controls them and switches off anything it doesn't like the look of. I had a problem with the back lights of the van on a brand new trailer with various wild goose chases and fault combinations. It all worked fine for a few seconds until the CANBUS cut in and isolated parts of the circuits. The CANBUS resets by switching off and back on, no fuses blow. I tested with another trailer board and it all worked fine again. It didn't like the LED lights on just sidelights so I altered the wiring and it all works fine now. Can't remember the exact fault. But, it caused errors on the reversing, brake lights etc which were actually fine.

EDIT I've looked at my wiring instructions again and I seem to remember it was the MINIMUM 21watt for the fog lights that screwed it up. I'd disregarded this and that's where I went wrong. This is on an LED compliant wiring kit, the resultant resistance it was looking for was vastly different for an LED than incandescent. I put a standard 21w bulb instead in and all my problems went away...

What fault are you chasing if any?

so, repaired a chewed wire, right indicator works on towbar bikerack , left indicator flashes but in rear brakelight position and although Flashes at the correct speed it actually makes a noise in the dashboard of a double click if that makes sense

 

[Stealaway]

I had to fit one of these to make my 2012 Ducato tow bar lights work although it failed after 2 years


<Broken link removed>

 

[Wannabee]

Sounds like a bad earth if another light flashes in sync dimly lit as it tries to track to earth via another bulb. Try putting a temporary earth to the light and see if it works.

 

[gus-lopez]

Bob, wheres the actual canbus box?

You found it. Mine is beind a light also. & powered from battery with an inline fuse. As said the dodgy flashing is likely to be earth faults. clean everything up.