Fuse location for tow bar electrics

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cooper64
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Fuse location for tow bar electrics

Post by cooper64 » Mon Oct 05, 2020 7:20 pm

does anyone know where the fuse is located supplying the towbar electrics?
I want to remove it to see if its pulling my battery down but I have been unable to locate it.
Nissan Qashqai 2019 (J11) model Tekna 1.3 turbo petrol

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calnorth
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Re: Fuse location for tow bar electrics

Post by calnorth » Tue Oct 06, 2020 7:17 am

What is the battery make...if its FIAMM get ready to call Nissan

Do you have a diagram for the towbar electrics? Towbar circuits would be open circuit when not plugged up. Unless something different exists in the wiring? Perhaps a dedicated circuit which isn't using the cars own power controlled system (IPDM).
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cooper64
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Re: Fuse location for tow bar electrics

Post by cooper64 » Tue Oct 06, 2020 12:04 pm

No the Battery type is a Varta L3FB 70Ah but I do think it's the battery as its a dedicated Nissan harness and with nothing plugged in there should be no load on the battery

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lapalmeraie
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Re: Fuse location for tow bar electrics

Post by lapalmeraie » Thu Oct 08, 2020 11:32 am

It is located here; (I paused it were you see it), it's the second 30A from above

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calnorth
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Re: Fuse location for tow bar electrics

Post by calnorth » Thu Oct 08, 2020 1:52 pm

A few days back someone here carried out a 7 pin tow bar installation. Post linked below. Apparently there is a connector pre installed at production in the boot...so take a look at the post:

viewtopic.php?f=29&t=10183

Looking at the Nissan diagnostic diagrams there is no specific tow bar fuses. Lights are controlled by Smart FETS which are not replaceable. 11 of them. If the tow bar is 13pin for Fridge etc then I suspect dedicated extra wiring will need to be installed and be separately fused somewhere near the IPDM related fuse block. IPDM controls all the cars body power requirements. Engine feeds are separate and fused accordingly.
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lapalmeraie
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Re: Fuse location for tow bar electrics

Post by lapalmeraie » Thu Oct 08, 2020 2:50 pm

But that connector (behind the boot liner in the upper right corner right?) doesn't has an additional fuse so that doesn't answers the TS's question. Correct me if I'm wrong.
The fuse I indicate is for the tow hook if I may believe the Nissan mechanic who told me about it ;)
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calnorth
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Re: Fuse location for tow bar electrics

Post by calnorth » Thu Oct 08, 2020 5:50 pm

lapalmeraie wrote:
Thu Oct 08, 2020 2:50 pm
But that connector (behind the boot liner in the upper right corner right?) doesn't has an additional fuse so that doesn't answers the TS's question. Correct me if I'm wrong.
The fuse I indicate is for the tow hook if I may believe the Nissan mechanic who told me about it ;)
He's asking about parasitic leakage Niek. Thats my take anyway. The tow bar electrics would only be wires and perhaps additional wires/fuses for a 13pin socket. If its a Nissan loom addition then ask Nissan. Without an as built diagram we are stuffed.

I don't know what additional wiring might be present and that might be to the Battery direct.

For J11A I saw a 30A "OPTION" fuse named F39 (I think). However, that would need a separate cable out to the tow bar socket...Fridge/12v ring cct etc?

Colin
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lapalmeraie
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Re: Fuse location for tow bar electrics

Post by lapalmeraie » Thu Oct 08, 2020 9:07 pm

You’re absolutely right Colin 😉
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calnorth
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Re: Fuse location for tow bar electrics

Post by calnorth » Fri Oct 09, 2020 6:50 am

lapalmeraie wrote:
Thu Oct 08, 2020 9:07 pm
You’re absolutely right Colin 😉
Think some of the tow bar kits incorporate a relay to switch stuff in or out...never seen a functional diagram so its all a bit...magical?
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Re: Fuse location for tow bar electrics

Post by lapalmeraie » Fri Oct 09, 2020 10:55 am

:lol:
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