 | Home > Puma (Tdci) > Alarm LED in dash flashing whilst driving |
 
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| forest172 Member Since: 01 Nov 2012 Location: derbyshire Posts: 355  
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mine does this too  |
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23rd Jan 2013 3:13pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20339 
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Mine's a 2.4 Puma and doesn't do it. $W33T $0U7H3RN $UG4R
🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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23rd Jan 2013 3:29pm |
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| borderterrier Member Since: 09 Dec 2011 Location: Surrey Posts: 1677 
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Dealer reckons duff alarm remote battery, I reckon not whilst driving! Keys swinging so that immobilser chip moves away from pick up around ignition barrel? Loose wire in alarm system, but seems odd that 2 cars are doing it?
Steve |
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23rd Jan 2013 4:23pm |
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| chadjizz Member Since: 25 Apr 2012 Location: sussex Posts: 559  
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my old 08 reg puma 2.4 didnt do this but my new 2.2 does do this.....
 now its x3 cars, sounds like its common to the 2.2.... |
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23rd Jan 2013 4:23pm |
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| borderterrier Member Since: 09 Dec 2011 Location: Surrey Posts: 1677
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23rd Jan 2013 5:13pm |
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| Green Machine Member Since: 19 Nov 2010 Location: North Yorkshire Posts: 1226 
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Sounds like a fairly typical Land Rover issue - don't test it, just sell it. Seems from the other thread that it has a connection to the radio being on/off? Maybe some of you other guys with 2.2's could try turning the radio off and see if the light goes off, which would identify the cause a bit more specifically.
(BTW - I don't have a 2.2, I have a Td5, but I'm sticking my nose in anyway). 2005 Td5 | 90 Station Wagon | Tonga Green |
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23rd Jan 2013 5:22pm |
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| borderterrier Member Since: 09 Dec 2011 Location: Surrey Posts: 1677
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Opinion most welcome GM Steve |
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23rd Jan 2013 5:25pm |
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| WWA Member Since: 12 Aug 2012 Location: Northumberland Posts: 197 
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Just had a test of mine, no flashing light when driving regardless of radio on or off. 2.2.
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23rd Jan 2013 9:17pm |
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| kingofthesparks Member Since: 06 Jan 2011 Location: Very close to Watford gap services , northants Posts: 987 
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Usual build quality then
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23rd Jan 2013 11:12pm |
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| SGoggin Member Since: 04 Jul 2009 Location: Australia Posts: 19 |
In the My12 tech reference manual, it mentions that if the alarm light flashes whilst driving it indicates that the key fob in use has a low battery and this needs to be replaced.
"If the remote handset battery falls below a pre-determined level, the handset will transmit an additional RF signal code to the anti-theft system module. This signal is relayed to the instrument cluster indicator which emits 2 rapid flashes every 0.5 seconds to inform the driver that the remote handset battery needs replacing." |
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24th Jan 2013 2:49am |
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| borderterrier Member Since: 09 Dec 2011 Location: Surrey Posts: 1677
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If mine flashed with that frequency, 2 rapid flashes every 0.5 seconds, I would be happy as clearly its meant to do it. Mine is more like a loose connection and comes on when it feels like it! Steve |
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24th Jan 2013 6:40am |
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| XS Pete Member Since: 13 Jan 2011 Location: Suffolk Posts: 632 
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This is completely off the wall and really just me thinking out loud, but as far as I was aware the only change on the later sytems was the addition of the battery backed sounder as standard.
I'm assuming that with this added there is some sort of battery management for the sounder, to keep the state of the charge of its battery good. Maybe this intermittent flash on the dash is some sort of 'start charge / finish charge' indication, or the dash module periodically polling the BBS for its current state. I suppose it would be good to know if anyone that's added the BBS retrospecively has seen the same thing. Just a thought. Pete |
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24th Jan 2013 10:18am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17367 
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The BBUS is 'charged' by means of the permanent 12V supply and any management is entirely self-contained. It is unlikely that the presence or absence of a BBUS will have any effect whatsoever on the behaviour of the LED. |
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24th Jan 2013 1:22pm |
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| XS Pete Member Since: 13 Jan 2011 Location: Suffolk Posts: 632
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OK Fair enough. I guess there must be some sort of battery management somewhere for the BBS pack, otherwise if (when) a cell eventually dies in the BBS, if there was simply a hardwired connection between the two positives, the main vehicle battery could become discharged by the dysfunctional BBS battery, if you see what I mean.
'tis a mystery Pete |
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24th Jan 2013 2:23pm |
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