Electrics meltdown.

[itchyfeet]

You have to find the common failure - look for a fuse (there is a big one up behind the main fuse box that has the strip type fuse like the glowplug).

not in my van that I ever found

[Titus A Duxass]

Here it is (it's a crepe photo, I took it so that I know what was connected).



You can see the two mounting holes for it just to the left of the earth crowns. There's a relay on the other side of the base if I remember correctly.

[itchyfeet]

I have heard them mentioned but thats not on my petrol van, I wonder what it's for?
there is no main fuse between battery and fusebox on the petrol vans I have seen.

[marlinowner]

I believe that's the fuse for max speed on three speed radiator fans, usually fitted to vans with factory air-conditioning (?). There is one on my SA Microbus, I used the battery side of it as a handy supply for my headlights when wiring them via relays as it has chunky cable to the battery and I reasoned that I was unlikely to have quad main beam on when the radiator fan was at max speed seeing as I have never heard it go past the first speed.

[Titus A Duxass]

I believe that's the fuse for max speed on three speed radiator fans, usually fitted to vans with factory air-conditioning (?).

Mine was a 1989 JX diesel van with no air con. I have no idea what the fuse is for, your idea for the radiator fan makes sense though.

[Oldiebut goodie]

Radiator fan relay and fuse. In situ in my Caravelle:

[itchyfeet]

Back to the origional problem. The lighting switch is before fuses so a short in a switch will overheat the ignition switch and wiring and not blow fuses.

[Titus A Duxass]

Radiator fan relay and fuse. In situ in my Caravelle:

Cheers OBG.

[Titus A Duxass]

overheat the ignition switch and wiring and not blow fuses.

The ignition switch is the primary link to all.

[itchyfeet]

overheat the ignition switch and wiring and not blow fuses.

The ignition switch is the primary link to all.

Which is why I suggested hot wiring the starter on page 1 to test it.
next step would be to measure current draw in ignition but there is reluctance to do any tests.

[rowlesy]

overheat the ignition switch and wiring and not blow fuses.

The ignition switch is the primary link to all.

now theres a thought..........

[KarlT]

Or ignition switch? Checked your earth crowns and made sure one or two earths haven't come off?

Hahaha! Hallelujah, let there be light!
Sorry for being slow, yes this is the common connection.
Hot wired ignition and starter.......... It starts.
Ignition switch looks melted. Cheers everyone.


Now how the hell do you replace that? Looks awkward!

[KarlT]

Found it on WiKi.
Cheers guys.

[itchyfeet]

https://club8090.co.uk/wiki/VW ... ion_Switch" onclick="window.open(this.href);return false;

pics from yours truely