Fuse box confusion.

35A is correct, the Land Rover part number is 12738.

Regarding the fuse box itself, "Frankenrover" is perhaps a little uncharitable - they changed to having two fuses for the Series IIA (fuse box part number 530057), so there was a good 3-4 years with the single fuse box (part number 219078).

Not that it excuses having only a couple of oddments fused - seriously, the windscreen wiper, fuel sender, and brake lights?! What on earth were they trying to protect? I've since installed inline fuses in my harness but would love to know the logic of only fusing those three items.

They are the services powered from the ignition switch apart from the ignition itself.

Best guess is that it is to prevent the engine stopping due to a fault in one of these (sort of) unessential services.

But I am at a loss to know why there were not a lot more fuses.

I suspect part of the reason may be that historically fuses tended to be a common failure point, whether a faulty fuse or simply faulty contacts in the fuse box, so a minimum of them was used.

Quote:

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Originally Posted by JDNSW

They are the services powered from the ignition switch apart from the ignition itself.

Best guess is that it is to prevent the engine stopping due to a fault in one of these (sort of) unessential services.

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Right, but that feels a little circular to me - okay, those three things could melt the white wire that also feeds the ignition. But then why are they on the white wire, unlike the choke or oil pressure lights? My best guess here would be that the white wire is a much heavier gauge, so either wiring loom cost or the amount of space available at the terminal was a concern.

(I'm not asking you to explain the thinking of the engineers that did it John! Just puzzling out loud.)