3 Way Switch 4 Prongs T85 for PMS3CD (Fiat Ducato 2.8 JTD Bilbo Camper conversion)

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3 Way Switch 4 Prongs T85 for PMS3CD (Fiat Ducato 2.8 JTD Bilbo Camper conversion)

Oliver1991

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Good evening everybody and thanks for reading my first thread,

My name is Oliver and I own a Fiat Ducato (2.8 JTD) Bilbo Campervan conversion from 2001.

I am looking for a spare part for the PMS3CD controller unit.

Unfortunately I was not able to locate the part as of yet. I have spend time searching the internet as well as this forum without success, hence I have to ask all the experts out here for help.

The part I am looking for is the battery selector switch (picture "Battery Selector Switch") that is responsible to switch between the 3 options AUX / OFF / VEH. This part is faulty as I might have fried it, hence it needs replacing.

It has 4 prongs at the end which to me seems to be very rare, given the difficulties I faced in locating a new one.

Frist question:
Has anyone an idea where to get this?

Second question:
If I can’t get this 4 prong switch anywhere, is it possible to use a 3 prong one? (Picture "Battery Switch 3 Prong") In the description of the website selling the 3 prong it says for PMS3 but again, can I use this without problems?

Any advice or ideas are greatly appreciated.

Thanks in advance and have a great weekend.
Oliver
 

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If I look at the picture you have posted then the central two switch tabs are already connected together by a "piggy back / dual tab" lucas blade connector that that is directly linking/shorting the two middle/central wires together.

If this is the case then a standard single pole / 3 way switch (ON1/OFF/ON2) will be perfectly OK subject to current and voltage rating.
 
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