Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
F4 fuse missing from my fusebox
As above the F4 fuse is missing from my fusebox.
Is this normal or has mine been removed for some reason?Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
25th Jul 2019 2:36 pm
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15265
Searched and had the fuse diagram up yesterday when connecting the Blackvue, so checked history and got it back.
So a cut n paste below of some F fuses around F4.
As it's EMS, could it be that F4 is covered by F5 or F6 on yours?
But then again F4 is protected by a 25amp fuse.
Circuits protected
3 5 Air suspension ECU
4 25 EMS (ECM, fuel pump relay control)
5 15 EMS
6 15 Petrol - EMS (ignition coils) Diesel - EMS (sensors, glow plug relay control)
7 10 from 2015: Adaptive Cruise Control (ACC)....... always on the road less travelled 🚧
25th Jul 2019 3:54 pm
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
Thanks for the info.
I am reluctant to shove a new 25amp fuse in there in case I blow something up.
Does anyone else have this fuse missing I wonder?Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
25th Jul 2019 3:57 pm
Pedros
Member Since: 25 Jun 2011
Location: Cumbria
Posts: 454
If everything works, don't worry about it would be my policy.
25th Jul 2019 10:26 pm
M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
The Disco 4 uses 6 different fuse boxes (assuming its the cabin box). 2010 to 12 with and without elec steering column. 12 to 14 with and without elec steering column and 2014 to 16 with and without elec steering column. All 6 are pretty much the same physically just with different software in the BCM. So depending on what year car and what year diagrams are looked at can make a big difference. For example, the 12 to 14 entertainment system has about 3 different fuses. On the 14 to 16 the Quiescent module has the fuses for the entertainment system so these 3 fuses in the cabin fuse box are now available for other things.
26th Jul 2019 10:01 am
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
Thanks for the info. M3bobby, the fusebox in question is the engine compartment fuse box (next to the main battery).
I was hoping someone with a similar aged discovery 4 to mine (2016) could confirm or deny the presence of a 25 amp fuse in the F4 position?Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
as has been said ... if everything is working there's nothing to be worrying about.
if you still want reassurance, and as it's the engine bay one so is easier to get to ... get hold of a multi-meter, connect it across the two ends of the fuse holder (maybe via a small fuse for safety ?) and see if any current is drawn.
26th Jul 2019 10:40 am
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
Hardware17, that is a good idea, I can perform several tests with a multi-meter including checking for a live supply to the input side and checking for a connection to ground on the output side (indicating a short circuit).
Thanks for the tip...Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
26th Jul 2019 10:51 am
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
Having performed the tests now, I can reveal there are no connections to the F4 fuse, no input or output connections.
Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
26th Jul 2019 11:22 am
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15265
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