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Old 1 Week Ago   #1
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Ducato 2,8 fuse F11 problem

Hello! Have a Ducato 2,8 jtd 02 with Dethleff motorhome. When driving, speedometer suddenly stopped working and motorlamp on. Workshop replaced speedsensor but no response. Got speedometer wiring diagram and found that fuse F11 12v going to speed sensor K084 was blown. The wire connects also to E5030 and E5050. Tried to replace the fuse but no, it blowed. Must be a shortcircuit to ground on the wire or in E5030/E5050. I dont know what these items are.
Hope someone can tell me..
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Old 1 Week Ago   #2
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Re: Ducato 2,8 fuse F11 problem

[QUOTE=Bjolseth600;4543152]Hello! Have a Ducato 2,8 jtd 02 with Dethleff motorhome. When driving, speedometer suddenly stopped working and motorlamp on. Workshop replaced speedsensor but no response. Got speedometer wiring diagram and found that fuse F11 12v going to speed sensor K084 was blown. The wire connects also to E5030 and E5050. Tried to replace the fuse but no, it blowed. Must be a shortcircuit to ground on the wire or in E5030/E5050. I dont know what these items are.
Hope someone can tell me

If you van has the seval engine with flame thrower cold start system it may be on the same fuse.

This does not apply to your engine
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Last edited by jackwhoo; 1 Week Ago at 13:38.
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Old 1 Week Ago   #3
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Re: Ducato 2,8 fuse F11 problem

Oops
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Last edited by jackwhoo; 1 Week Ago at 13:37.
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Old 1 Week Ago   #4
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Re: Ducato 2,8 fuse F11 problem

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Re: Ducato 2,8 fuse F11 problem

Fuse F11, designated secondary services, supplies among other items the oil vapour heater. This unit is known for developing short circuits, and hence blowing the fuse.

I consider that this is the first item to eliminate. The oil vapour heater is situated behind the radiator, and above the starter motor. See picture taken from underneath vehicle.

Unplug the heater to confirm diagnosis. Please note that my engine has only one heater, but eLearn shows two separate connectors in parallel. If two heaters are fitted the will be side by side, and you may have to disconnect both.

You will be OK to run without the heater when outside temperature is above freezing, but Norwegian winters could necessitate replacement.

I am adding this after posting. I have just noticed the mention of E5030 and E5050. I cannot trace E5030, but E5050 is the engine management. See link below. The "star" of wires at the lower section of the diagram are all assosiated with F11.

http://4cardata.info/elearn/244/2/24...0005/244002482
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Last edited by Communicator; 1 Week Ago at 13:23. Reason: Minor punctuation, reference to two heaters added.
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Old 1 Week Ago   #6
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Re: Ducato 2,8 fuse F11 problem

Tanks for hints so far, I will look them trough and check them out..
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Re: Ducato 2,8 fuse F11 problem

Hello! I did disconnect the contact and put a new fuse in and started the engine, stopped and pulled it out and the fuse was not blown. Have to take a testdrive tomorrow and erase the failure codes which all indicated shortcirciut.. Thanks..
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Old 1 Week Ago   #8
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Re: Ducato 2,8 fuse F11 problem

For the record, eLearn diagram E5030 mentioned above, relates to the engine management system for the 2.0 litre petrol / gasoline / benzine. engine.
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Re: Ducato 2,8 fuse F11 problem

Hello again! Took a testdrive yesterday and speedometer is working again, and the glowplug lamp is not blinking any longer. Tried to google this "oil vapor heating resistanse" part but can`t find it anywhere under that name. So, is it possible to get this part outside the Fiat Part system. I do appreciate all the help I have got in this tread..
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Old 1 Week Ago   #10
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Re: Ducato 2,8 fuse F11 problem

Following link is a possibility. Check compatability.

https://coastalmotorhomes.co.uk/fiat...e-1421-e8.html
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Old 1 Week Ago   #11
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Re: Ducato 2,8 fuse F11 problem

It looks very simular to my version. Have to disassemble it tomorrow and see closely and then I hope it will be the end of this story... So once again, thanks for all help.
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