Member Since: 31 Oct 2009
Location: Carluke
Posts: 2815
Hazards constantly flashing
Boss has asked me for help with an issue on their 55 S D3.
The hazard lights are constantly flashing, the switch on the dash does nothing.
It's not the alarm as that's not sounding and was my first question.
Putting the key in the ignition and putting it to position 1/2 or starting the car stops it.
Sometimes with the radio and heating turned off. Removing the key switches them on.
It has a parrot system fitted for hands free calling.
Any ideas what could be wrong?
30th Jan 2013 12:09 pm
Discotres
Member Since: 25 Jan 2010
Location: London
Posts: 8491
Is the switch flashing, does the switch still flash when you turn it off?
30th Jan 2013 12:15 pm
WINDSWEPTISLANDER
Member Since: 21 Jul 2011
Location: Way up north
Posts: 523
I had this happen to me when I had a trailer hitched up with a bad connection, might be worth doing a bulb check
Had this on a D1. Only happened when daughter was a front seat passenger. Seemed she could bang her feet on the floor in a way that set off an impact sensor somewhere. Solution was to "loose" that particular CD.A vaccine does not stop you catching a virus, or passing it on, or getting ill from it, really ill. It does reduce the likelyhood of you dying when really, really ill. Stay Alive - KEEP AWAY FROM PEOPLE.
30th Jan 2013 12:59 pm
smaskins
Member Since: 16 Jun 2009
Location: SE London/Kent
Posts: 295
Discotres wrote:
Is the switch flashing, does the switch still flash when you turn it off?
My switch doesn't flash when the hazards are on - Should it
30th Jan 2013 2:30 pm
Jakeboy
Member Since: 11 Dec 2012
Location: Glasgow
Posts: 97
I had similar with my brake lights when I first got my 56 SE. As mentioned above, this was due to faulty towing electrics. The external socket, adjacent to the towball, had water ingress which had eventually corroded the wires/terminals causing them to break and short out. Result was continually flashing HL brake light, even with car locked . Stealer replaced socket, re-wired and all sorted!
I would look in that direction, particularly if it has towing electrics and/or in the cubby box to the LHS of the rear / boot section where the brake light and factory loom terminates with various connectors for retro-fitting towing electrics etc. #
Jakeboy
30th Jan 2013 2:57 pm
A.J.M
Member Since: 31 Oct 2009
Location: Carluke
Posts: 2815
It does have towing electrics with the heavy duty tow bar.
Will get them to check the electrics.
30th Jan 2013 3:03 pm
wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
just unplug the 2 connectors in boot (behind rear passenger side cubby cover ) if the hazzards stop then you know its the towing electricsG4 Gone ...but not forgotten
30th Jan 2013 4:50 pm
A.J.M
Member Since: 31 Oct 2009
Location: Carluke
Posts: 2815
They have tried all the above, now the hazard lights and door lock/unlocking is going off.
Any more ideas?
30th Jan 2013 9:19 pm
wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
Faulty crash sensor ...
Could be a can bus wire shorting out ...G4 Gone ...but not forgotten
30th Jan 2013 9:39 pm
kidney wiper
Member Since: 15 Aug 2010
Location: In the Mere
Posts: 87
has this vehicle recently had a full valet ie under bonnet ? Is it possible they have got water in the fuse box. Had it on P38's etc with over zelous valeters.
Has it ever had a screen in it & is there a possibility of water entering the CJB behind the glove box?
Just a couple of thoughts.
30th Jan 2013 9:47 pm
A.J.M
Member Since: 31 Oct 2009
Location: Carluke
Posts: 2815
I found on the site info about an Eco behind the battery.
The blue connector is all corroded and the ecu is soaked through.
Has been removed to be dried out and cleaned up.
Shall report back with findings.
30th Jan 2013 9:58 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732
Common issues with them. No repair kits avaliable, so requires the connector to be re-pinned, ans possibly a new ecuMy D3 Build Thread
Member Since: 31 Oct 2009
Location: Carluke
Posts: 2815
Update to lay this to rest.
The ECU had loads of water on it, the middle blue connector had loads of corroded pins so they were all cleaned up and the ECU dried out.
Thankfully that has worked so we had put some sealant on the connectors to stop water getting at them again.
Today we checked mine to see if I was going to have the issue. When we removed the cover my ECU was like new, no water Ingres signs anywhere. Sealant has been applied so it stays that way.
The ECU is behind a cover that's visible when you remove the battery. As pictured.
Click image to enlarge
So should anyone bother to use the search function in the future. This thread will show the likely issue and how to fix it. :thumbsup:
Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated
6th Feb 2013 9:49 pm
kidney wiper
Member Since: 15 Aug 2010
Location: In the Mere
Posts: 87
Is that not the trafer box ECU behind that cover ?
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