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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Repurposing Rear Washer Pump Connection for Winch Isolator

Hello

I am looking for wiring diagrams for the rear washer jet pump if anybody can steer me in the right direction? 2007 Defender Puma if it makes any difference

Thanks

edit: see below!


Last edited by hank on 18th Sep 2018 3:08pm. Edited 2 times in total

Post #729763 18th Sep 2018 2:42pm
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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Perhaps you auto electric wizards can evaluate my idea...

I have a 110 double cab so no rear washer, switch or pump however the rear wash wiring should be present behind the dash blanking switch

If I mount my winch switch (https://www.mudstuff.co.uk/genuine-style-tdci-td5-switch-winch.html) in the centre console, plugged up to the redundant rear washer connector in the dashboard then activating the winch switch should make live the rear washer pump connector in the engine bay. I can then take this live feed and extend it as the exciter for my winch isolator solenoid, back to earth.

The idea behind this is that I don't have to disturb the factory wiring.

Any thoughts on why this wouldn't work?

Post #729768 18th Sep 2018 3:03pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 8753

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

It should work fine. I used the RWW switch for my headlamp washers.

On an '07 all the wiring is present and if you choose the right switch (ie a latching one rather than non latching) then you will switch on the spare connector adjacent to the screenwasher pump. This is quite capable of switching a relay (my super heavy duty pumps are both relayed now).

Post #729774 18th Sep 2018 3:43pm
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sako243



Member Since: 08 Jul 2014
Location: Surrey
Posts: 518

United Kingdom 1995 Defender 110 300 Tdi CSW Alpine White

Only thing is don't you want a two way circuit? Winch in and winch out? I'd hazard a guess it's only one way for the washer pump. Ed
07 Range Rover L322 3.6TDV8
95 Defender 110 300Tdi

Post #729820 18th Sep 2018 8:42pm
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Jimmy B



Member Since: 11 Nov 2017
Location: Cumbria
Posts: 27

2011 Defender 110 Puma 2.4 USW Stornoway Grey

Is this just to control an isolator or the in/out solenoids?

Post #729824 18th Sep 2018 9:00pm
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Devon-Rover



Member Since: 22 Jan 2015
Location: South Devon
Posts: 585

United Kingdom 2014 Defender 110 Puma 2.2 USW Aintree Green

It's for the isolator solenoid sako so he just needs a make and break circuit to operate it on and off. Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest

Post #729826 18th Sep 2018 9:02pm
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sako243



Member Since: 08 Jul 2014
Location: Surrey
Posts: 518

United Kingdom 1995 Defender 110 300 Tdi CSW Alpine White

Fair point, missed the title Embarassed Ed
07 Range Rover L322 3.6TDV8
95 Defender 110 300Tdi

Post #729834 18th Sep 2018 9:26pm
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PaulMc



Member Since: 17 Jan 2009
Location: Kent
Posts: 342

United Kingdom 1989 Defender 110 2.5 TD HT Arles Blue

The Mudstuff switches are based on the auxiliary lights switch, which is an earth-switching switch, using the black 5-way connector.

This isn't compatible with your Defender's rear washer wiring for two reasons -

1. The rear washer switch switches an ignition switched live from pin 1 to pin 4.

The Mudstuff switch switches a relay's coil to earth from pin 1 to earth on pin 4.

2. The Mudstuff switch uses a black 5-way connector. Your Defender's rear washer wiring will have a blue 5-way connector on it.

There are a couple of ways around this -

1. Use a heated rear screen switch body, with your Mudstuff switch front on it.

The heated rear screen switch is wired the same as the rear washer switch, it latches, and it uses the blue connector.

2. Swap the blue connector on your Defender's wiring for the black one that comes with the Mudstuff switch, and modify the switch's internal layout to turn it into a live-switching switch.

The blue connector's terminals are easily released, in order insert them into the black connector.

The internal modifications to the switch are a small cut in the brass track to separate pin 3 from pin 4, and a link from pin 4's track to pin 5's track, to enable the tell-tale LED. This can also be achieved by adding an external loop of cable from pin 4 to pin 5.

. Paul.
1989 Arles Blue 2.5TD 110 Hardtop
1999 Epsom Green Discovery II 4.0 V8i 'XS'

Post #729855 19th Sep 2018 2:07am
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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Fantastic knowledge as per usual gents thank you Bow down

Paul's suggestion "Use a heated rear screen switch body, with your Mudstuff switch front on it" is sounding like the most straightforward solution at the moment. I will get some bits ordered and report back

As clarified, this is just for the winch isolator switch. Winch control will be by the hand held remote

Thanks once again, this has saved me much head scratching!!

Post #729858 19th Sep 2018 6:01am
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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Paul Mc - just to clarify; "the heated rear screen switch uses the blue connector" ... only the loom connector is blue right? The switch body itself is black? (I am on ebay and the switch is black)


Post #729859 19th Sep 2018 6:05am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 8753

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

^^^ Correct, only the connector is blue.

Post #729864 19th Sep 2018 7:41am
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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Thumbs Up ordered, will report back

Post #729872 19th Sep 2018 8:59am
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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Can anyone help me out with the name/type of plug/connector used for the rear washer pump? So I can make up a patch lead for my isolator solenoid

Post #734051 10th Oct 2018 4:31pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 8753

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

IIRC it is a standard 2-pin Econoseal connector of the female gender.

Post #734066 10th Oct 2018 6:26pm
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hank



Member Since: 12 Sep 2016
Location: Newport
Posts: 435

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

That’s it! I knew it had the word seal in it!
Thanks a lot

Post #734080 10th Oct 2018 7:31pm
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