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MD5



Member Since: 02 May 2011
Location: Italy
Posts: 143

2009 Defender 110 Puma 2.4 SW Alpine White
110 Td4 - Extra security / Anti Theft Advice
Hello,

I'm interested in installing a hidden switch or something similar to add en extra security anti-theft layer to my Defender 110 Td4.
Any useful information or ideas about what to connect/disconnect to made engine starting impossible will be greatly appreciated.

Thanking in advance for any advice.
Post #282870 17th Nov 2013 11:28am
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Vince



Member Since: 01 Nov 2013
Location: Durham
Posts: 17

United Kingdom 
Personally i've always used the fuel pump - i'm sure there is a better place but seemed the easiest to me.

it'll still start and run but will stall once residual fuel in the lines/filter has been used (and of course then need priming to restart)
Post #282913 17th Nov 2013 4:42pm
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MD5



Member Since: 02 May 2011
Location: Italy
Posts: 143

2009 Defender 110 Puma 2.4 SW Alpine White
In the Defender "Puma", the fuel suction pump is embedded into the engine and is operated by the rotation of the motor.

It's not electrical like the previous Defender version.

What do you think about intercepting the cable that connect the start-switch to the start-engine-relay and put a switch in the middle. In this manner, when the added switch is open, the "crank" signal will not reach the relay and the engine will not start.
Post #282916 17th Nov 2013 4:53pm
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j33per



Member Since: 31 Dec 2012
Location: Somerset
Posts: 12

2013 Defender 110 Puma 2.2 X-Tech LE Orkney Grey
Post #283113 18th Nov 2013 6:06am
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Lishlandy



Member Since: 26 Oct 2011
Location: High Wycombe
Posts: 941

England 2012 Defender 110 Puma 2.2 X-Tech LE Orkney Grey
Tiger security


Click image to enlarge
 ===================================
Steve
90 xs sw in Stonoway Grey - Sold
110 USW X-TECH
Post #283148 18th Nov 2013 9:38am
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SteveG



Member Since: 29 Nov 2011
Location: Norfolk
Posts: 660

2005 Defender 90 Td5 CSW Belize Green
MD5 wrote:
In the Defender "Puma", the fuel suction pump is embedded into the engine and is operated by the rotation of the motor.

It's not electrical like the previous Defender version.


It wouldn't have worked on TD5 too, I forgot that I had removed fuel pump fuse and still managed to start and drive off in my Td5 90. It went into limp mode but still ran ok, just significantly down on power. Wink
Post #283179 18th Nov 2013 12:43pm
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ChrisCM



Member Since: 10 Jun 2013
Location: Cornwall uk
Posts: 572

United Kingdom 2010 Defender 110 Puma 2.4 SW Santorini Black
MD5 wrote:
In the Defender "Puma", the fuel suction pump is embedded into the engine and is operated by the rotation of the motor.

It's not electrical like the previous Defender version.

What do you think about intercepting the cable that connect the start-switch to the start-engine-relay and put a switch in the middle. In this manner, when the added switch is open, the "crank" signal will not reach the relay and the engine will not start.


MD5

I have one of the trackers j33per has and would like to use this as a way of stopping the vehicle remotely if the scroats get their mitts on it, would this work? Or is it, as I suspect only going to stop it starting? Can you tell me where the relay / wiring is as a remote switch is probably a good idea anyway. Please PM me if you think this is too sensitive for public viewing.

Thanks

Chris 2010 Defender 110 Station Wagon, Santorini Black.
Post #283190 18th Nov 2013 1:07pm
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MD5



Member Since: 02 May 2011
Location: Italy
Posts: 143

2009 Defender 110 Puma 2.4 SW Alpine White
I think that the GPS tracker suggested by j33per could be useful. Thanks for pointing this out. I will fit one of them.

About how to remotely turn off the engine, I think that some engine sensor can be bypassed/excluded but I have not developed this idea because for safety reason I prefer to install something that can only prevent engine starting.

What do you think about bypassing the crank signal that goes from starting switch to starting relay R102 located in the vane under the seat ?

Post #283919 21st Nov 2013 6:14am
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ChrisCM



Member Since: 10 Jun 2013
Location: Cornwall uk
Posts: 572

United Kingdom 2010 Defender 110 Puma 2.4 SW Santorini Black
MD5,

Yes, I had the same thoughts about stopping the vehicle remotely and the safety of such a system but the tracker will only stop the vehicle if it is going slower than 20km/hr.

Thanks for the circuit diagram and relay number, should be simple enough to put in a switch.

Chris 2010 Defender 110 Station Wagon, Santorini Black.
Post #283936 21st Nov 2013 8:51am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
J33per. Thanks for the info - i've ordered one of them trackers of amazon.

Does anyone have a list of circuits that once cut will
Disable the car?

Thanks
Post #284439 22nd Nov 2013 10:19pm
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