Doors Wont Lock

[ident]

Anyone have any ideas on this one ?

Lock the car with the remote, the doors go clunk then clunk again, so locks then immediately unlocks again ?

Both doors the same, it will eventually lock but it takes many tries and is getting worse ....

Dealer says it needs both lock modules changing as the sensor that thinks the door isnt closed properly is broken

Does anyone know if this can just be disconnected as the modules are £ 270 each plus the VAT and with labour I have been quoted over £ 1,000 !

Seems like an expensive fix ... the car is a 2006 Vantage ...

Thanks

Ian

[brakedwell]

It is a very common problem. Both the locks in my DB9 and my son's V8 Vantage have had to be changed. Poor quality parts I am afraid.

[Neil1300r]

Pull the fuses on both door modules. Wai 30 seconds put them back in. Report back

[ident]

Interesting .... are the fuses in the standard box or on the module ?

I will try this evening ... it happened after a service at a main dealer who said ' it is a coincidence Sir '

Thanks for the feedback

Ian

[Jockman]

Ian, I certainly hope your clunk is different to that of avinalarf

Good luck

[Neil1300r]

From memory they are in the fuse box in the passenger footwell. Should be in the owners manual

[brakedwell]

Cabin Fuse Box F82 & F83 - Clear 25A fuses. You will need a Torx 30 screwdriver to remove the cover. Don't rick your back

[ident]

Thanks for the advise ... not had a chance yet but will have a look at the weekend certainly .... its a right pain as it makes it rather difficult to use when you have a worry about it not being secure .... have read also about the battery level being critical also, its on a battery trickle charger all the time so I will try as well with the charger connected and fresh and see if that makes a difference also

Cheers Ian

[brakedwell]

Both doors should lock manually with the key, but you have to press the remote fob lock once to arm the interior movement sensor.

[ident]

Ok, dont the fuse pull, thankfully they are easy to get to ( ! ) and so with only a simple tool kit you can find that the cable loom is over the fuses ... after some more messing about managed to pull the fuses and waited a few minutes ... put the fuses back and things are improved ( it will actually lock now ) but still only 50% of the time although this is a lot better than before where the success rate was 0% !

Anyone have any other ideas of how to get this 100% ?

Thanks as always ... Ian

[V12Vanquish]

Check your battery, make sure it is fully charged and if it's more than a few years old replace it with a new one. Modern cars are very susceptible to having issues due to low battery voltage. Just because it will start the car does not mean it is not failing. You could also try the module fuses again or a full battery disconnect.

[brakedwell]

ident said:

Ok, dont the fuse pull, thankfully they are easy to get to ( ! ) and so with only a simple tool kit you can find that the cable loom is over the fuses ... after some more messing about managed to pull the fuses and waited a few minutes ... put the fuses back and things are improved ( it will actually lock now ) but still only 50% of the time although this is a lot better than before where the success rate was 0% !

Anyone have any other ideas of how to get this 100% ?

Thanks as always ... Ian

The only way to get 100% reliability is too bite the bullet and fit two new locks, or lock the car manually with the key and check both door handles every time you park up, which soon becomes a real pain in the ar*se. I suspect the passenger door lock in my DB9 had been faulty for a long time and only came to light when the car was locked inadvertently by the key in my pocket and the alarm went off when I opened the door to retrieve the Owners Guide. Two years later the driver's door lock failed. It would be interesting to know how many Gaydon built Astons are parked in public places without the owners knowing one or more doors are unlocked. i

[ident]

Thanks for the input ... the battery is on a trickle charger all the time and I have tried with this connected and it makes no difference but I may try a new battery as a least cost option

I was surprised that the fuse pull reset just made them better, I was expecting a 100% fix or nothing at all !

It does seem that as an expensive car security would be high on the mind of the person that specified these parts ... are they Volvo bits by any chance ?

Had a price of £ 270 a side from the main dealer plus VAT ...

Ian

[brakedwell]

My first lock fault occurred six months after a new battery was fitted by my dealer, who told me a faulty batch of locks had entered the supply chain, affecting a lot of early cars. I don't they are Volvo parts, just poor quality.

[ident]

Hmmm ... mine worked fine until it was in for its service at the Main Dealer then they never worked afterwards ... they told me it was a co-incidence but Im not convinced ... will try the reset again and maybe a battery off one as well

A new battery is an ' investment ' too so maybe this is a good idea just to try all the options before finally giving up and getting a new pair of them

Ian

[V12Vanquish]

Your car is 06, if it's the original battery, it's probably past it's best by now. Remember you have to reset the windows after a battery disconnect, it's covered in the handbook.

[ident]

New battery on order here in time for the weekend so will get the ' battery off ' reset done then too and a fresh set of 12 V up it !

Watch this space !

[ident]

The final instalment !

Changed the battery last night ( thank you Aston Martin for making this so easy ! I wonder if the dealers charge so much money as you have to take the roof off to change the oil filter ? ) Who had the idea of putting the battery there ! And holding it down with two forms of clamps with different fasteners on in inaccessible places ! Why ?

Anyway, replaced the battery with the same make but an uprated version ( Varta Silver ) for a very reasonable £ 83.50 inc VAT and delivery from Performance Batteries

Pushed the button and they locked first time and no wont fail ! Fantastic ! No more having to try the doors each time I park and waiting to hear the clunk - clunk of lock - unlock each time I walk away !

The battery that was on the car was the original so I guess it was due for a replacement ... even though the old one was on a trickle charge this new one cranks the car much more enthusiastically so there is a big difference .... a fresh MOT tomorrow and ready for the summer again !

Thanks for all the input on this

Cheers

Ian

[Neil1300r]

Good result. Dealer would have just changed the door modules. Then would hve put a new battery in!

[ident]

And ..... Its back !

All working fine until Saturday then now wont lock at all again !!!!

I just cant understand it ! After the battery swap all was perfect and on Saturday morning all well, took the car out to pick something up and had to come home as it wont *&"£*&^!"£!*&kin lock again ...

That 911 is looking a whole lot more tempting again !

So ... history ...

Soft reset ( fuse pull ) made them better
Full reset / new battery initially made them perfect
24 hours later they wont lock at all again

Any ideas before I go and buy a can of petrol !

Cheers

Ian