Technical Fiat Ducato 2020 2.3 140hp - reversing signal

[StefanDD]

Hello,

I have a campervan (Burstner Campeo C640) on a 2020 Fiat Ducato L4H3 Maxi 2.3 140hp. I am looking for the reversing signal to connect to my Alpine receiver for back-up camera signal. I used a multimeter to probe all the pins form the fuse box connectors, but I didn't have any succes .

Nothing I read in other threads doesn't seems to apply and I hope it will not be necessary to use a CAN adaptor or to run a wire from the reverse lamp.
Can you help me, please?

 

[StefanDD]

This is how my fusebox look like, for further references.

 

[HughJampton]

The wiring has tended to change from year to year, but there is at least a good chance that the instructions here:

https://www.alpine.co.uk/fileadmin/user_upload/manuals//2020/APF-S101FI_INE-W611DU_INE-F904DU_ilX-F903DU/IM_APF-S101FI_INE-W611DU_INE-F904DU_ilX-F903DU_ALL.pdf

will be relevant to your van. Even if the wire colours don't match, I'd still test on the designated pinout. (green Connector Pin 4)

 

[Reg 65]

I wired my reverse camera into the reversing light which worked.
Current consumption was too small to affect the canbus - OK I thought
But it was a real pain because the camera took a few seconds to come on every time I selected reverse gear
This is not what we want when shunting backwards and forwards into a tight parking space!
I was causing an obstruction whilst I was waiting for the camera to come on, and people were understandably getting impatient wondering what I was f*cking about at!!
So now I have my reversing camera activated by a dashboard switch, so the camera stays on till I want it to turn off.
Its far better !

 

[StefanDD]

The wiring has tended to change from year to year, but there is at least a good chance that the instructions here:

https://www.alpine.co.uk/fileadmin/user_upload/manuals//2020/APF-S101FI_INE-W611DU_INE-F904DU_ilX-F903DU/IM_APF-S101FI_INE-W611DU_INE-F904DU_ilX-F903DU_ALL.pdf

will be relevant to your van. Even if the wire colours don't match, I'd still test on the designated pinout. (green Connector Pin 4)

Thank you! It worked!

 

[HughJampton]

 

[CheeseMonster]

The reverse light signal can be seen in MES so I guess an Arduino could sniff and output a signal for a head unit.
The Arduino could do s lot more if you wanted it.