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mattyboy
08-21-2011, 04:02 PM
anyone have a wiring diagram for a volvo trim pump. I have the harness it looks to be complete and connects directly to the battery with an 8 awg pos and neg wires. then it has 2 relay packs. a connector for the motor. the only two remaining wires are a green and a blue which i assume are blue up and green down coming from the trim switch. my question is what is being switched 12 volts or is it just looking for a ground? so what do I wire into the center pole on my SPDT a ground or 12 volts??

thanks

maddad
08-21-2011, 05:48 PM
I hope one of these helps matty.
http://www.donzi.net/forums/attachment.php?attachmentid=66125&stc=1&d=1313963154
http://www.donzi.net/forums/attachment.php?attachmentid=66126&stc=1&d=1313963160

Conquistador_del_mar
08-21-2011, 09:29 PM
anyone have a wiring diagram for a volvo trim pump. I have the harness it looks to be complete and connects directly to the battery with an 8 awg pos and neg wires. then it has 2 relay packs. a connector for the motor. the only two remaining wires are a green and a blue which i assume are blue up and green down coming from the trim switch. my question is what is being switched 12 volts or is it just looking for a ground? so what do I wire into the center pole on my SPDT a ground or 12 volts??

thanks

I am almost positive that the green or blue need a 12V+ signal to activate the relays, but I could check on mine tomorrow if you can't be sure from the wiring diagram Bill

mattyboy
08-22-2011, 09:19 AM
Mike, Bill,

Thanks that's what i was told from a merc guy how the merc works just wanted to confirn the volvo was similar. this pump is for a newer 290 and was almost new. I am having some connection issues now the old pump and hoses used different size connections. will be bilge diving at the boat bone yard today.

Thanks Again

:)