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[Doctor Gollum]

Best treated as a convenient spare for the one on the radiator 

[steve6367]

Best treated as a convenient spare for the one on the radiator 

Nooooooooooooooo lol

[Finnishguy]

Let's bring this one to the table again.
I have been stuggling with this for some days again and i found out that when i did some measurings with voltagemeter, i got even more confused.
In the relaybox beside the battery, there is a square coupling that has only one wire on it(blue/black) and thats the wire that goes to the pump.
I gave direct 12v from the battery to that wire and the pump turned on.
So then i measured the voltage coming to that wire from somewhere, i have no clue where, and as i put the minus cable from the voltagemeter to the batterys minus and the meters plus cable to the wire coming from somewhere it had no voltage, but then i put minus cable of the voltagemeter to the plus side of the battery, it showed 11.7v....
Why? Is there a short circuit or what?
My explaining isn't very clear to understand but please ask more from me and help me with this.

[Muroman]

From Finland too, can't solve problem with this so I made new wiring trough basic relay with switch in the cabin, only using pump at winter when on HI setting. Or at summer when very hot.

[Boatboy]

Any progress on this other than tech 2, goosed ecu or fitting a relay/switch.

Tried to use mine the other day whilst breakfasting under some Golden Arches and it only ran for 90 secs or so.  Pump runs fine when connected to battery direct but multimeter is awol so can't check voltages

Steve

[Doctor Gollum]

It only runs for as long as the coolant temp matches the climate setting... it will run longer set to 16 than 25, especially if it's cold outside

[Boatboy]

It only runs for as long as the coolant temp matches the climate setting... it will run longer set to 16 than 25, especially if it's cold outside

Aye and there's the rub. In the 90 secs I'm guessing it maybe blew the heat out of the matrix but as the pump was not running no heat was taken from the engine which still showed 90+ on the dash when i'd finished dining.

I've got a spare lead with the right connector and a golf buggy battery somewhere so might experiement one day, but tbh it's a 14 yo Vx so I can always find bigger fish to fry.