How does one get to the 150A mega fuse that supplies the electric heater. The wiring diagrams say it is in the battery junction box but it isn't, the service book seems to indicate it is somewhere near the front right - possibly under the centre console but short of removing that I see no way to get to it - that is a lot of messing about to replace a fuse.

Anyone have any pictures of this particular fuse in situ, where it actually is and how to get to it.

 

BenKenobi,

Try this;

https://parts.harperjaguar.com/oem-p...UtMGwtdjgtZ2Fz

It's confusing as it says "Trunk mounted, engine compartment". The diagram shows it (although not very clearly), in the engine bay fuse box.

Hope that helps,

wombat

 

It is beyond confusing - I have this picture in the service book - but it isn't clear where exactly this is - the fuse I want to check is item 5, there is a communication fault with the electric heater module but that requires half the dash to come out if that is toast.



Under seat - or centre console - and yes the electrical diagram clearly states battery junction box, which is an equal pain in the posterior to get to, requiring half the trunk trim to come out.



Clearly states battery JB

 

BenKenobi,

That picture/diagram is for an early model XF. Maybe the XJ is different?

wombat

 

Wish it was - that's straight out of the XJ service manual - I do have the XF one (as I had an XF) but it was a V8 petrol, one of the reasons for asking is that I'm fairly sure the XF one requires removal of the drivers seat or at least the bolts so it can be tipped back - I believe but don't know for sure.

 

Strange! The line drawing is an early XF! I also had one.

wombat

 

I had to do it - I was curious to see if Jaguar had done a copy paste so I opened the XF manual for the Diesel

 

Ben,

I just went out to my '12 5.0 N/A. The only large fuse I see in the engine bay fuse box is 100A.

 

Appreciate you trying currently -8°C here so tends to crimp my enthusiasm for poking around a car outdoors.

 

AHH!!!!! DOH,

I wouldn't have that fuse anyway! It's only fitted on the diesel models!!!

So it may be in the engine bay after all.

wombat

 

Snob

You do realise the car will be in pieces all over the driveway and the fuse will have been in plain view all along ...

 

150A fuse. Look straight down on the inside wall of the trunk