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Low Voltage at Oil Transfer Pump
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Yes, I probed the wire at the splice. I will test continuity on yellow wire from 10-pin connector to yellow wire splice (should have already done this). I will also remove some insulation on the yellow wire between the splice and 10-pin connector and check for voltage there. Continue to wonder if I am missing something. By the way, do you happen to know where the yellow wire ultimately connects to the brown wire that goes to pump? Is it within the oil control module that incorporates the manual pump switch?
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did you probe the wire itself from the pin connector at the splice just to be sure.
the splice could not be making connection to the wire.
the connection problem can be anywhere
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99yam40: The splice is shown below with the rubber boot pulled back. I must have probed that splice 100 times but couldn’t get any voltage. I read in a different post that that splice could be problematic but I don’t think so here.
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sounds like you found the problem
I have heard of a bad connection in the splice before, but not the pin connection.
I guess it can happen anywhere
are you sure the bad place is not in the splice?
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If I am understanding the the system correctly, it appears that the voltage is lost within the male side of 10-pin connector. Hard to imagine as the connector looks very robust. I have voltage on the yellow wire pin on the female side coming from dash with the key on. When I mate the connector there is no voltage at the 3-way splice on the yellow wire just 6” from connector.
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Yes, with key on there is 12v at the yellow wire pin on the female 10-pin connector .
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if no 12 + at the splice, is there 12 + at the 10 pin connector coming from the key?
or does it come from originate from somewhere else.
Seems it would be easy to see where the 12+ disappeared
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I applied 12v directly from battery to the yellow wire male pin in the 10-pin harness. For some reason, I have no voltage at the 3-way yellow wire splice just 6” away from 10-pin connector! Splice looks good. I figure that if no voltage at yellow wire splice, then voltage will never be present at brown wire to oil pump. See photo below. Stumped.
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I’ll look in the manual tomorrow when I’m at the boat. A prior post on this site indicated that the splice would be “6” aft“ of the 10 pin connector in engine pan. I’ve unwrapped the factory black tape at least 10” and don’t see it. Thanks for your patience.
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Boscoe99, thanks for your input. However, I don’t understand it. Still trying to locate the splice from the brown wire on the oil transfer connector (4-pin) In the engine pan to the yellow wire coming from the 10-pin connector in the engine pan. Won’t be back at the boat until Saturday to resume search.
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I am guessing from the drawing that #5 or #8 has the connection inside of it since the dashed lines
that confuses me
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Would appreciate any assistance in helping me find the splice between the brown wire on oil transfer connector in engine pan and the yellow wire on 10-pin connector in engine pan. I unwrapped the factory tape back about 10” and don’t see it. Thx.
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