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"Bonnet Open" error?
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jik22
 


Member Since: 14 Oct 2007
Location: Perth
Posts: 64

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Buckingham BlueDiscovery 3
"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 - 

Last edited by jik22 on 1st Oct 2008 1:26 pm. Edited 1 time in total 
Post #3527421st Oct 2008 12:55 pm
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simonsi
 


Member Since: 14 Oct 2007
Location: Auckland
Posts: 1264

New Zealand 
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 
 
Post #3527441st Oct 2008 12:59 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

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 #3527451st Oct 2008 1:00 pm
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countrywide
 


Member Since: 16 Sep 2007
Location: UK
Posts: 6019

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Unknown ColourDiscovery 4

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 #3527641st Oct 2008 1:41 pm
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jik22
 


Member Since: 14 Oct 2007
Location: Perth
Posts: 64

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Buckingham BlueDiscovery 3

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 -  
Post #3527681st Oct 2008 1:49 pm
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jik22
 


Member Since: 14 Oct 2007
Location: Perth
Posts: 64

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Buckingham BlueDiscovery 3

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 -  
Post #3531552nd Oct 2008 5:09 am
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Neil Pettersen
 


Member Since: 23 Nov 2007
Location: Cutting the grass
Posts: 1254


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.
  
Post #3531592nd Oct 2008 5:32 am
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countrywide
 


Member Since: 16 Sep 2007
Location: UK
Posts: 6019

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Unknown ColourDiscovery 4

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 #3531692nd Oct 2008 6:35 am
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Gareth
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Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26775

United Kingdom 

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
  
Post #3532252nd Oct 2008 9:11 am
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garryc
 


Member Since: 08 May 2007
Location: Adelaide Hills
Posts: 259

Australia 2013 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

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
 2013 D4, E-diff, Vision pack

Never propose to a Yak 
 
Post #3532422nd Oct 2008 9:53 am
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