Fitting a heated windscreen switch?

LeadFarmer · Jan 20, 2012

Will be getting my heated windscreen wired up soon, having just puchased the wiring loom/timer/relay kit. I need to think about where to put the switch. Im guessing I need a Carling switch? Or at least a swith that you just have to press once?

I dont want to fit a Mud/Raptor console for just one switch, so was wondering if I could fit it under the dashboard, perhaps where this red switch is?

Although Im not sure if that partucular switch would be suitable.

Whre do you have yours?

Station House · Jan 20, 2012

Don't see why not

Think mine has got a removable blanking plate already there, so should be easy to substitute.

How you thinking of running the wiring to the back?

ratty · Jan 20, 2012

I think that location is for the fuel tank changeover switch so should be fine for using for the screen heater.

LeadFarmer · Jan 20, 2012

Station House said:
Don't see why not

How you thinking of running the wiring to the back?

Its for the front windscreen, not the rear. Or were you refering to running the wiring to the back of the dashboard?

Can anyone recommend a suitable switch?

Station House · Jan 21, 2012

Ah my mistake - didn't pick up that it was for the front

This switch any good?

Defender pre 2001 rear heated window t rocker switch | eBay

PaulMc · Jan 21, 2012

LeadFarmer said:
Will be getting my heated windscreen wired up soon, having just puchased the wiring loom/timer/relay kit. I need to think about where to put the switch. Im guessing I need a Carling switch? Or at least a swith that you just have to press once?

I dont want to fit a Mud/Raptor console for just one switch, so was wondering if I could fit it under the dashboard, perhaps where this red switch is?

Although Im not sure if that partucular switch would be suitable.

Whre do you have yours?

LeadFarmer said:
Its for the front windscreen, not the rear. Or were you refering to running the wiring to the back of the dashboard?

Can anyone recommend a suitable switch?

The position you're proposing for the switch is a good one

If I read your question correctly, you're looking for a non-latching switch to fit in this position?

If so, the late 300Tdi and early TD5 (pre-2002) Defenders use a non-latching rear fog lamp switch in the bank of 3 switches (the actual switching of the rear fog lamp is done by a small Black Box ECU behind the instruments), this switch would fit into the position under the instrument binnacle.

As you can't see the switch's face in this position, it wouldn't matter too much that it had the wrong symbol on it. The symbol on these switches is engraved into the plastic and filled with white paint, this could be easily blacked-out.

Depending on the age of your Defender, there may also be some unused positions on the instrument warning lights, which you could use as a 'tell-tale' for your heated windscreen.

.

LeadFarmer · Jan 21, 2012

Thanks Paul. Im not sure what 'non latching' means, but I assume that when the switch is pressed then it needs to return straight back to its off position, leaving the timer/relay to sort everything else out?

My Defender is a 1996 110 300tdi and Im having the heated screen connected by a professional auto-electrician, but Im providing the parts. I already have the wiring kit, but I need to buy a switch and tell him where I want it putting. I would like to use a Carling switch, but I doubt there is anywhere to fit a switch of this size.

So are you saying that if I buy another 'rear heated screen switch' then this will do the trick?

Cheers.

PaulMc · Jan 21, 2012

LeadFarmer said:
Thanks Paul. Im not sure what 'non latching' means, but I assume that when the switch is pressed then it needs to return straight back to its off position, leaving the timer/relay to sort everything else out?

Non-latching is, exactly as you said - when the switch is pressed, it makes a momentary circuit and springs back to the 'off' position.

Which should be what you need with a timer relay.

LeadFarmer said:
So are you saying that if I buy another 'rear heated screen switch' then this will do the trick?

No, not a heated rear screen switch, these 'latch' - i.e. when pushed, they stay in the 'on' position until pushed again.

The rear fog lamps switch, as used with the 'One-Touch' ECU, doesn't latch.

.

Dave90 · Jan 21, 2012

LeadFarmer said:
Its for the front windscreen, not the rear. Or were you refering to running the wiring to the back of the dashboard?

Can anyone recommend a suitable switch?

'Vehicle Wiring Products' do very good stuff, I have had a few toggle switches off them

Vehicle Wiring Products Ltd. Suppliers of auto electrical parts.

LeadFarmer · Jan 21, 2012

PaulMc said:
The rear fog lamps switch, as used with the 'One-Touch' ECU, doesn't latch.

Understood :doh:, thanks. So depending on my chassis number then perhaps this one (AMR6328)..

REAR FOG LAMP SWITCH DEFENDER 90/110 - AMR6328 - Land Rover Parts & Range Rover Parts

PaulMc · Jan 21, 2012

LeadFarmer said:
Understood :doh:, thanks. So depending on my chassis number then perhaps this one (AMR6328)..

REAR FOG LAMP SWITCH DEFENDER 90/110 - AMR6328 - Land Rover Parts & Range Rover Parts

That one could be OK

There's two listed in Microcat -

AMR6328 - SWITCH-PUSH PUSH FOG-REAR, ONE TOUCH - from (V)VA104806 to (V)WA138479

YUE100530 - SWITCH-REAR FOG MOMENTARY - from (V)WA138480

I would go for the later one, as it says that it's momentary.

Edit:

I've just looked at the 'One-Touch' ECU in Microcat - it says that it was fitted from (V)VA104806 - so either switch should be OK

.

LeadFarmer · Jan 21, 2012

Dave90 said:
'Vehicle Wiring Products' do very good stuff, I have had a few toggle switches off them Vehicle Wiring Products Ltd. Suppliers of auto electrical parts.

Thats a great shop, thanks

PaulMc said:
That one could be OK

There's two listed in Microcat -

AMR6328 - SWITCH-PUSH PUSH FOG-REAR, ONE TOUCH - from (V)VA104806 to (V)WA138479

YUE100530 - SWITCH-REAR FOG MOMENTARY - from (V)WA138480

I would go for the later one, as it says that it's momentary.

Thanks Paul, seems like you've solved my problem

I'll get one ordered.

PaulMc · Jan 21, 2012

LeadFarmer said:
Thanks Paul, seems like you've solved my problem I'll get one ordered.

I meant to add that, if you want a connector block to connect to the back of the switch, they're available from Autosparks -

AUTO SPARKS

.

LeadFarmer · Jan 21, 2012

Thanks very much Paul, very helpful

Dave90 · Jan 21, 2012

LeadFarmer said:
Thats a gresat shop, thanks=quote]

No problem great service off them tbh

cborrman · Sep 13, 2018

Sorry to revive an old thread, but was wondering, hiven I have a read heasted screen can I not wire a new heated front screen to the existing rear screen heating switch and have them both on the same switch? I cannot right now think of why I would need them to be independent?

marksman · Sep 17, 2018

No issue with 1 switch operating both screens as long as they are independently controlled by separate fuses and relays (one switch feed two relays one of which is front screen with own fused positive)

cborrman · Sep 17, 2018

marksman said:
No issue with 1 switch operating both screens as long as they are independently controlled by separate fuses and relays (one switch feed two relays one of which is front screen with own fused positive)

makes sense, thx

Fitting a heated windscreen switch?

LeadFarmer

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Station House

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ratty

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