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DISCO3.CO.UK > Technical (D3)

FBH Switch
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cmb2020
 


Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150

United Kingdom 2005 Discovery 3 TDV6 SE Manual Aintree GreenDiscovery 3
FBH Switch

Hi all

Is there any way to force the fbh to start up, without using an expensive iid or plugin?

I see on a freelander 2, a person forced it to start by connecting the red and grey wore from the fbh to the battery positive

I’m wondering can I do this?

Just got a used fbh from eBay to put in as mine has a corroded fuel cup. And wanting to try and get it going.

I have also used my autel ap200 to view the AHCM and can see some info such as run time and that there are no codes. But I can’t activate or edit anything.

If a fbh is locked out, is it a simple case of clear the codes? Or is there more to it?

Hopefully I can force start it a cheap way and see if it works or gives clues to what’s next step.

Also thinking I might use my oil pump tool to try and draw fuel out the line too so i can see the line is ok… is this a wise idea?

Please and thanks as always! Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales  
Post #231145217th Oct 2022 2:08 pm
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Martin
Site Admin and Owner 


Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18506

United Kingdom 2006 Discovery 3 TDV6 SE Manual Buckingham BlueDiscovery 3

Lots of info in the wiki: www.disco3.co.uk/fbh 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!  
Post #231145517th Oct 2022 2:18 pm
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cmb2020
 


Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150

United Kingdom 2005 Discovery 3 TDV6 SE Manual Aintree GreenDiscovery 3

Thank you!

I see a DIY thread on the link have you?

Says about a HEX file to
Make the third key fob button activate the fbh

What is a hex file is this where I would use my laptop to plug to the obd port? Or am I way off? Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales  
Post #231145817th Oct 2022 2:28 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Webasto oval timer, they just work, retain a decent chunk of their value when sold on.  
Post #231146117th Oct 2022 2:37 pm
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cmb2020
 


Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150

United Kingdom 2005 Discovery 3 TDV6 SE Manual Aintree GreenDiscovery 3

I’m trying to check it works before buying any kind of remote Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales  
Post #231147917th Oct 2022 3:41 pm
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Trailered Movements
 


Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200

United Kingdom 2011 Discovery 4 3.0 SDV6 Commercial Auto Sumatra BlackDiscovery 4

For information purposes only, Webasto offer hot air or coolant heating systems for trucks, similar to how the FBH works.

The first will act as a 'night heater', the second is best described as only for pre heating the engine.

Your battery will not last a couple of hours if you use the FBH for heat throughout the night, and be expensive in fuel as well.

In Scandinavian countries they use both a running engine and the Webasto when it gets very cold, as only the two together can keep everything warm, it is not meant for 'night heating'.

SORRY POSTED TO WRONG THREAD, PLEASE IGNORE


Dave 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)  
Post #231148717th Oct 2022 5:07 pm
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riverblanche
 


Member Since: 31 Aug 2010
Location: retford'ish
Posts: 2213

England 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Hi,

as Martin says ^ have a look through the wiki
and the "Search" button should give you lots of reading as its been covered/asked a number of times.
ISTR very recent in the FBH section?

I used Webasto software on my laptop and started the FBH on my D3 when I bought it a few months back,
hopefully it will be starting on its own when needed Whistle

Thumbs Up Transit! 2019
Gone D3 HSE 2008
Another Porsche Cayenne 2022
Gone Porsche Cayenne 2020
Gone RRS HSE Dynamic 2016
Gone RRS HSE LUX 2011
Gone RRS HSE 2006
Gone D3 SE 2.7 2008
gone D2 Td5 1999

I plan on living forever and so far so good !

Club DG Mclaren stuff
.  
Post #231152417th Oct 2022 10:02 pm
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cmb2020
 


Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150

United Kingdom 2005 Discovery 3 TDV6 SE Manual Aintree GreenDiscovery 3

Thanks and I have had a read

Seems the cheapest option to start it is too hard to achieve by DIY

I’ve got a gap iid coming tomorrow and hoping I can use it to start the fbh

Thanks again all Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales  
Post #231204521st Oct 2022 3:03 pm
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