Hi guys
I have just installed a hobbs pressure switch in my engine bay to activate my IC sprayer (~10psi).

I have plumbed/diverted into the rear washer water line, which is fine.

My problem is - finding the wiring that controls the rear washer. Does it come off the bottle and head towards the rear of the car? or does it come up through the engine bay and back through the firewall?

Basically i need a line from the bottle (for the rear washer signal) which will then have a closed circuit when the boost switch closes, which inturn fires the sprayer...

Can anyone help me out with finding the wiring? or pictures?

Oh, i do not want to activate it from the wiper stalk...

Cheers

 

Sorry man, I'm out of pocket right now as my MINI and manuals are back home. You could possibly trace them out. If you take the cover off the rear hatch to expose the wiper motor, you'll see that the harness that plugs into the motor runs up and goes into the car via the wiring harness between the hatch and car. I'm guessing it then makes its way down into the car down to where the removable covers are to get to the tailights. Probably more than likely the left side. Try and trace it that way. That's the best I can tell you right now.

 

Maybe this site with the wiring diagrams would help.
http://www.mcaw.info/wds/mini/us/r50/index.htm

 

The wiring on the pump is kinda weird if I remember correct.

If I remember right, the pump only has 2 wires going to it, and the computer switches the polarity and directs flow. Its been so long since I was trying to fix mine. I lost both front and rear squirters out of the blue one day.

 

Maybe this site with the wiring diagrams would help.
http://www.mcaw.info/wds/mini/us/r50/index.htm

Great link...Thanks.