Member Since: 30 Jan 2023
Location: Northumberland
Posts: 22
Fbh not working - diagnostic help !
My fbh has never worked on my d3, tried the webasto software & that won't let me do a forced start, any ideas on how to proceed ? Clear instructions on using the software would help, software comes up ( off state)
Thank you[/code]
1st Feb 2023 11:38 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14138
Member Since: 30 Jan 2023
Location: Northumberland
Posts: 22
Thanks for that, it doesn't help, I've made the lead up & downloaded the webasto software, when I run the diagnostic, it comes up as off ! Even sourced another fbh , stripped it & cleaned it last night, fitted it to my d3 this morning & exactly the same as my original, can't get it to run , I'm thinking maybe the fbh fuel pump may have been removed? Mine is a very early d3 , the first of them, red wire present in pin 2.
1st Feb 2023 4:04 pm
Lee Trinder
Member Since: 12 Aug 2018
Location: Henley in arden
Posts: 516
Does it try to start or does it do nothing?
1st Feb 2023 4:53 pm
vizlauk
Member Since: 30 Jan 2023
Location: Northumberland
Posts: 22
Nothing at all, no attempt to start
1st Feb 2023 4:59 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14138
vizlauk wrote:
Thanks for that, it doesn't help, I've made the lead up & downloaded the webasto software, when I run the diagnostic, it comes up as off ! Even sourced another fbh , stripped it & cleaned it last night, fitted it to my d3 this morning & exactly the same as my original, can't get it to run , I'm thinking maybe the fbh fuel pump may have been removed? Mine is a very early d3 , the first of them, red wire present in pin 2.
Ur so welcome , that’s a shame it wasn’t useful
Plse don’t think I’m trying to teach u how to suck eggs, but was u aware of the following
that if Outside air temp is above 6 C , Engine temp more than 75 degrees C or Low fuel warning light on that will stop it coming on
if the fuel pump has been removed wonder if maybe the previous owner has removed the fuse ? , engine bay fusebox , number F28
Once again hope that doesn’t come across as being disrespectful in any way to ur knowledge
Last edited by gstuart on 1st Feb 2023 5:29 pm. Edited 1 time in total
1st Feb 2023 5:21 pm
vizlauk
Member Since: 30 Jan 2023
Location: Northumberland
Posts: 22
Yes I'm fully aware on how it's supposed to operate, recent cold weather could have done with it working, fuse is still present !
1st Feb 2023 5:28 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14138
I bet regarding the cold weather , also found a wiring diagram for u showing the other fuses etc which hopefully will be helpful as maybe there’s a break in a wire or bad connector , know a low battery can also affect it , main battery with the engine off should be a min of 12.6 Vdc
Mines also a 2005 and normally leave the interior temperature setting to auto as I once made the mistake of leaving it in the off position , lol
Fingers crossed for u
Click image to enlarge
1st Feb 2023 5:35 pm
riverblanche
Member Since: 31 Aug 2010
Location: retford'ish
Posts: 2227
Hi,
its a while since I have used the software but just had a look on my laptop (not connected to car)
only think I can suggest is with the title bar at the top of the page, is it "seeing" your car, Extras can select the com port to use if not
Diagnosis start diag, View to view faults and look at device info, then Faults to clear any faults, Control has an On function but can not remember if that does not work try parkheat.
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
Hi vizlauk, I don't know what you know, so please don't be insulted!
My old D3 FBH only comes on when I turn on the cabin heating, when the weather is cold. Otherwise it will not start, in any situation, even in cold weather.
1st Feb 2023 7:11 pm
Lee Trinder
Member Since: 12 Aug 2018
Location: Henley in arden
Posts: 516
vizlauk wrote:
Nothing at all, no attempt to start
It may be locked out, can you clear the faults to reset it?
1st Feb 2023 7:31 pm
Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
...
Last edited by Flatlander on 21st Feb 2023 10:14 pm. Edited 1 time in total
1st Feb 2023 7:43 pm
vizlauk
Member Since: 30 Jan 2023
Location: Northumberland
Posts: 22
1st Feb 2023 8:20 pm
vizlauk
Member Since: 30 Jan 2023
Location: Northumberland
Posts: 22
just connected it up again & took some photos of the screen results, maybe that may be of some help, if the fbh is locked, how do i unlock it with the webasto software ? im obviously doing something wrong ? nothing showing in the faults when i click on it, no change if i clear faults & try again
any advice is welcome
1st Feb 2023 8:28 pm
Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
...
Last edited by Flatlander on 21st Feb 2023 10:14 pm. Edited 1 time in total
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