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DISCO3.CO.UK > Navigation, Entertainment and Electronics

"Bonnet Open" error?
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jik22
 


Joined: 14 Oct 2007
Location: An Englishman in Perth
Posts: 32

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Buckingham Blue
"Bonnet Open" error?

I'm getting the above after having quite a bit of wiring work done fitting a BT kit, UHF/VHF radio, screen and sat nav. Just wondering where to start looking for what is presumably a disturbed or broken wire that's causing this? Main areas we were into were the dash, LHS kick panel and under the bonnet, plus running power wires from the aux battery to the rear for a fridge.
 - Jeff K -

2007 V6 SE
1994 300TDi Defender 


Last edited by jik22 on Wed Oct 01 2008 1:26pm; edited 1 time in total 
Post #352742Wed Oct 01 2008 12:55pm
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simonsi
 


Joined: 14 Oct 2007
Location: Leicester
Posts: 880

United Kingdom 2005 Discovery 3 TDV6 S Auto Zambezi Silver
Re: "Bonnet Open" error?

jik22 wrote:
Main areas we were into were the dash, LHS kick panel and under the bonnet.


Eeek! Thats a lot of wiring. Sorry I can't offer any real help
 Cheers

Simon

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Post #352744Wed Oct 01 2008 12:59pm
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DiscoDunc
 


Joined: 08 May 2006
Location: Bristol
Posts: 2794

England 2006 Discovery 3 TDV6 HSE Auto Tonga Green

there is a sensor just below the offside bonnet catch. it may need re-seating or replacing. Had mine replaced once but the second time it happended a disconnect and clean sorted the problem.
 Duncan
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Post #352745Wed Oct 01 2008 1:00pm
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countrywide
 


Joined: 16 Sep 2007
Location: Sunny South Coast
Posts: 1807

United Kingdom 2006 Discovery 3 TDV6 S Auto Zambezi Silver

Everytime we go off roading and I lift the bonnet this message keeps coming up. The mud gets in the switch under the bonnet as DiscoDunc mentioned and stops it working. You can see a micro switch if you look closely and I had to bend the contact to make it work again.
  
Post #352764Wed Oct 01 2008 1:41pm
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jik22
 


Joined: 14 Oct 2007
Location: An Englishman in Perth
Posts: 32

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Buckingham Blue

Thanks both. I'll have a look in the morning - I really wasn't expecting it to be the actual bonnet switch itself as all we did there was open it to get at the aux battery box, but the error was there on the trip home, so it defintely happened while all the work was getting done! I'd assumed they'd caught something while messing around in the footwell or something! Might save me a 2 hours round trip back to the installer if it is that simple though.
 - Jeff K -

2007 V6 SE
1994 300TDi Defender 
 
Post #352768Wed Oct 01 2008 1:49pm
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jik22
 


Joined: 14 Oct 2007
Location: An Englishman in Perth
Posts: 32

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Buckingham Blue

Right, it's definitely the icroswitch, so thans for the tip. However, short of jamming it with a screwdriver nothing I seem to do to it makes it stay that way when I shut the bloody bonnet. Think LR can sort it now I know I didn't cause the problem with the work and it was probably just the fact we opened the bonnet to begin with!
 - Jeff K -

2007 V6 SE
1994 300TDi Defender 
 
Post #353155Thu Oct 02 2008 5:09am
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Neil Pettersen
 


Joined: 23 Nov 2007
Location: Twofers at the Coffee Club ..ummm
Posts: 677

Australia 

Jeff ,

Mine does the same, probably because I leave the bonnet open when I get home(to let heat out fast)
and all the open/close daily use over works the switch.
I wrapped tape around the bonnet metal, to increase diameter and switch contact ....... it worked ok.
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Post #353159Thu Oct 02 2008 5:32am
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countrywide
 


Joined: 16 Sep 2007
Location: Sunny South Coast
Posts: 1807

United Kingdom 2006 Discovery 3 TDV6 S Auto Zambezi Silver

I had to bend the tab on the switch so that it moved further when the bonnet pin came down.

It is not really the right sort of switch to use where there is a lot of dirt etc, I am surprised they used it.
  
Post #353169Thu Oct 02 2008 6:35am
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Gareth
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Joined: 07 Dec 2004
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England 2005 Discovery 3 TDV6 HSE Auto Zambezi Silver

Don't mess around trying to fix it. Just pull the connectors off the microswitch and join them together. I have done this on mine after several failed attempts to fix the problem.

I can see if the bonnet is open or not, I dont need another bong to state the obvious Rolling Eyes
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Post #353225Thu Oct 02 2008 9:11am
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garryc
 


Joined: 08 May 2007
Location: Adelaide Hills
Posts: 121

Australia 2005 Discovery 3 TDV6 S Auto Chawton White

countrywide wrote:
I had to bend the tab on the switch so that it moved further when the bonnet pin came down.

It is not really the right sort of switch to use where there is a lot of dirt etc, I am surprised they used it.


Had this problem recently. The switch is waterproof. I tried bending the curved metal actuator and initially didn't get it right so I unplugged the cable and put a cut off paper clip (U shape bit)in the pins of the plug and taped it up. Later I adjusted the arm correctly and all has been OK since. The latch arm that actuates the switch moves in a clockwise motion and not up and down so you need to take that into account when bending the actuator arm. You can test it by clicking the latch arm into the closed position with 2 screwdrivers instead of closing and opening the bonnet each time. Just remember to pull the bonnet release before you close the bonnet. regards
 S White, TdV6, air suspension, 110ltr Long Range tank, Kaymar wheel carrier, aux. battery, adjustable cargo barrier, LR snorkel(waterproofed), reversing and front camera, Cooper tyres and tyre sensors, Codan NGT. VKS-737 Sierra2367
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Post #353242Thu Oct 02 2008 9:53am
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