Rear lights, indicator and break lights not working (1 Viewer)

[Adrian140974]

So, I have just had an A frame fitted to our fiat 500 and hooked up to our swift kontiki tonight for the first time. It is a Fiat ducato 2.3 180bhp. As soon as I plugged in, everything on the rear of motorhome has stopped working, lights, indicators, reversing lights and break lights. Everything else on motorhome is working, only rear lighting elements. When connected no lights on car either!! The car all works fine when I disconnect. This is the first time we have hooked it up. Any ideas anyone? Thanks

 

[Two on Tour]

If your A frame installers also install the car to van electrics, then surely your question would need to be aimed at them.

 

[Adrian140974]

Yep I have emailed them, my gut tells me they have made a mistake with the wiring!!

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[Spriddler]

I think you'll have to depend on the fitting firm to sort it.
Modern vehicle systems are pretty sophisticated and if you fiddle about with doing any suggestion on here the fitting firm won't be very appreciative/understanding/co-operative/sympathetic.
But you can't do much harm checking the relevant fuses to see if any have blown.

 

[Adrian140974]

Yeah I agree thanks. All fuses inside cab are fine and will check box under the bonnet during the light tomorrow.

 

[L' Hobo]

Yep I have emailed them, my gut tells me they have made a mistake with the wiring!!

Yep I have emailed them, my gut tells me they have made a mistake with the wiring!!

or a fuse in your van has blown and when you plug your car in, it uses the same circuit?

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[L' Hobo]

Yeah I agree thanks. All fuses inside cab are fine and will check box under the bonnet during the light tomorrow.

There are also some fuses at the bottom of the pillar behind the drivers seat, behind the plastic cover, although I am not sure what they're for??

 

[Stealaway]

Did he fit a cam bus conversion box. Modern vans will not work when simply connected to the wiring

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[Adrian140974]

or a fuse in your van has blown and when you plug your car in, it uses the same circuit?

Fuses in cab all fine but need to check fuses in box under the bonnet in the light tomorrow, cheers

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[Adrian140974]

There are also some fuses at the bottom of the pillar behind the drivers seat, behind the plastic cover, although I am not sure what they're for??

Oh right will have another look in the morning, thanks

 

[Adrian140974]

Did he fit a cam bus conversion box. Modern vans will not work when simply connected to the wiring

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Takes the signal from the vehicle electrics and then powers the trailer/caravan lights as required from the vehicle battery. This smart relay will fix errors caused by modern LED lights on trailer and carvans.

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I'm not sure if they installed that, I used Towtal in
Stoke

 

[Stealaway]

I'm not sure if they installed that, I used Towtal in
Stoke

Sorry not that one this one.
It's worth asking them my 2012 van needed one

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[Adrian140974]

Sorry not that one this one.
It's worth asking them my 2012 van needed one

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Thank you, I will raise it with them. Cheers

 

[Happy Jim]

I had this, old van wiring for tow bar, and a new (to me) fiat500 toad. Exactly as you describe, solved with a replacement tow bar electric kit.

Jim

 

[Adrian140974]

I had this, old van wiring for tow bar, and a new (to me) fiat500 toad. Exactly as you describe, solved with a replacement tow bar electric kit.

Jim

Oh right sounds straightforward, the van and towbar is not 3 years old yet but I suppose could be the issue. Thank you

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[Landy Andy]

As said above. A CANBUS wired vehicle requires a bypass relay fitted.