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Chopperone



Member Since: 13 Nov 2016
Location: Derbyshire
Posts: 396

United Kingdom 
Immobiliser woes? Engine won't start - What should I check?
Hi
Some advice please.
I have a 2007 Tdci 2.4 with Central locking & two alarm fobs.

The vehicle battery is 18 months old.
Last week I went to move the vehicle which I hadn't used for about 3 weeks & it wouldn't start so I recharged battery & moved it out the garage - left it running for 5 mins & switched off to do my jobs.
One of the jobs entailed disconnecting the battery for a few minutes.
Once completed I went to start it & it wouldn't start & alarm sounded.
Tried a number of times & I thought the battery had gone down again.
I recharged it overnight. I also changed the battery in the alarm fob.

The alarm fob does not unlock/lock the vehicle. The alarm/immobilise lights are not illuminated at all.

So far I have tried pressing the fob repeatedly , I have disconnected battery & left off for 1/2hr. I have tried touching +ive to -ive terminals to "re-set" ; all to no avail.

I have read through various posts here. I don't have a Nanocom.

I have checked fuses & all appear to be in order.
What's my next move please?

Cheers
Guy May your life be like toilet paper ; long & useful.
Post #824390 10th Apr 2020 11:14am
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Chopperone



Member Since: 13 Nov 2016
Location: Derbyshire
Posts: 396

United Kingdom 
Issue resolved !

Fuse 1 had blown & it blew again - not sure why. I replaced it & starting checking door switches. I then decided to RTFM & then applied some logic I have the alarm /immobiliser & C/L all working and the vehicle runs Very Happy

No where to go/not allowed to go anywhere. Still at least I can move it out of the yard.
Stay safe folks
Guy May your life be like toilet paper ; long & useful.
Post #824395 10th Apr 2020 12:45pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8033

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Top result. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #824405 10th Apr 2020 2:07pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Fuse 1 is ABS unit Question

Last edited by dorsetsmith on 11th Apr 2020 5:23am. Edited 2 times in total
Post #824440 10th Apr 2020 5:32pm
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Chopperone



Member Since: 13 Nov 2016
Location: Derbyshire
Posts: 396

United Kingdom 
Unfortunately l spoke too soon.
I replaced the 20 amp fuse in position 1 under the driver’s seat.( marked central locking).
I have Mazda seats in my 90 so not exactly a 2 minute job to access the fuse box.
Then reset alarm & tested - everything ok.
Put seats back in / quick test & drove up my drive & then put back in garage; reset alarm & it popped the fuse,alarm goes off & it won’t start Big Cry

What l don’t understand is that l didn’t do anything anywhere near the C/L When l did the few jobs the other day.
I can only assume that there is a short somewhere in the C/L circuit which is causing the problem.
Any known areas where l should start looking?
Thanks
Guy May your life be like toilet paper ; long & useful.
Post #824487 10th Apr 2020 8:47pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8033

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Door gaps where wire passes through. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #824488 10th Apr 2020 8:54pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8033

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
If it was cl surely it would just not lock that door with failed wiring. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #824489 10th Apr 2020 8:55pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

You mean Fuse 7 feeds the battery voltage input pin 25 gray plug on the alarm unit

also feeds door locking output on the alarm unit green plug pin 3-2


Good place to start Central locking wiring



Click image to enlarge



Id start with door to a pliller rubber and wiring
Post #824511 11th Apr 2020 5:28am
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Chopperone



Member Since: 13 Nov 2016
Location: Derbyshire
Posts: 396

United Kingdom 
Thanks for everyones input so far.
I am confused about FUSE 7.

I have 2 x fuse locations in my 2007 90.
One under the steering column & one under the driver’s seat.

Under the driver’s seat there is a 20 amp fuse in the first position ; it is marked C/L ( nothing else) this is the fuse that blows.
There is no reference to fuse 7.
What am l missing?

I will have another good look in the next few days to try & solve this
Thanks
Guy May your life be like toilet paper ; long & useful.
Post #824682 11th Apr 2020 9:17pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

This will keep you busy



https://1drv.ms/b/s!AtZSoWFHDgnGkGkrFWcZsRtsH3Dp?e=5L8B2W


https://1drv.ms/b/s!AtZSoWFHDgnGhDbxYedTopmyd1rA?e=a7MCOv


Last edited by dorsetsmith on 12th Apr 2020 7:06am. Edited 1 time in total
Post #824717 12th Apr 2020 6:58am
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Chopperone



Member Since: 13 Nov 2016
Location: Derbyshire
Posts: 396

United Kingdom 
Hi
Thanks Dorset.
I now understand
It is Fuse 7 that blows.
So l need to trace where the wiring goes to that fuse.......

Thanks
Guy May your life be like toilet paper ; long & useful.
Post #824718 12th Apr 2020 7:05am
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

And just so you can find think from drawing

https://1drv.ms/b/s!AtZSoWFHDgnGjECIf_wOfqrjegKe?e=kEfY0P
Post #824722 12th Apr 2020 7:48am
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thompo



Member Since: 26 Sep 2016
Location: stoke-on-trent
Posts: 2

United Kingdom 2012 Defender 110 Puma 2.2 SW Indus Silver
Hi everyone i had problems with central locking on my puma ;i replaced my radio and sorted central locking out broken wire in door pillow behind passenger seat i had dissconected the battery,but tried everything it would not start i called a man that can it took him five minutes .He took the key fob away from the vehicle removed the battery from it pressed the buttons on the fob a few times replaced the battery pointed it at the car locked and unlocked it jumped in and it started.i hope you find this of help.
Post #825887 16th Apr 2020 8:12pm
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Finchy13



Member Since: 07 Apr 2019
Location: North East
Posts: 20

United Kingdom 2013 Defender 90 Puma 2.2 HT Firenze Red
I had a similar problem when the battery died on my puma. Tried to start it after charging the battery but it wouldn't crank or lock/unlock from the fob. Had a blown fuse, can't remember which, replaced it and still no joy. Had to get a bloke out to reprogram the 10AS unit as its all too common for it to loose its coding...
Post #825898 16th Apr 2020 8:55pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Finchy - I had the same problem. Problem was I was in a psychiatric hospital car park and everything I tried set the alarm off. Eventually, I was politely asked to have it towed Embarassed Laughing Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #825928 17th Apr 2020 5:27am
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