GTV electrics - alarm?

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Discussion

Lotusgone

Original Poster:

1,186 posts

127 months

Sunday 12th February 2017
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I've had my S-reg GTV V6 for three years. I have never used the black box for central locking, preferring the key, and never put the radio on. All was well electrically, until recently. Three months ago, the light above the headlamp height adjuster started to flash continually. I now seem to have a battery drain, and the hazard lights come on when it is started - and also sometimes engage when driving in traffic.

Something similar happened with my Elan M100, the cure was to "simplify" the electrics (ie, a specialist disconnected some stuff, specifically the alarm). My local garage doesn't want to meddle with it, but is this an easy fix? - or symptomatic of something less clear?

colin2296fs

123 posts

204 months

Sunday 12th February 2017
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SWH

1,261 posts

202 months

Monday 13th February 2017
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It has never worked properly on our GTV.... 11yrs and counting.

They key fob did nothing and I've never used that either. I did notice after a couple of years a cable hanging down was actually where the previous owner had disconnected the siren.

When the battery goes flat (yes there's a drain.... probably the sodding alarm in fact) the hazard lights go off when there's a voltage drop, so door open, foot on brake, wipers on, etc. This takes a little while to heal up, I guess the alarm finally gives itself up as properly stolen or similar.

The LED on the dash has flashed constantly other than when the battery is dead. Luckily it's behind the steering wheel in my line of sight when driving, else it would have stopped flashing.

The recode/replacement alarm link looks interesting though, would be good to have something that worked on it. I have a vague memory of reading somewhere that the central locking was linked to it as well... which would be very interesting as that has the occasional bout of thinking for itself as well, usually related to how much water is about.

mog1275

23 posts

107 months

Monday 13th February 2017
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You can easily disconnect the meta type alarm ecu if its non functioning & draining the battery. It lives in the void under the heaterbox, just unscrew the side panel on the drivers side to access (done it to mine & several others)

SWH

1,261 posts

202 months

Wednesday 15th February 2017
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Ah cool, so that's where it lives, I shall take a look next time I'm in fix it mode.

Need to sort the gear change stiffness first, along with the usual Alfa list of niggles..!

awooga

358 posts

134 months

Thursday 16th February 2017
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With my 916 spider, it was the remote boot release that affected the alarm and gave similar symptoms to what you have. I just disconnected it at the boot and all was ok.

paulmakin

659 posts

141 months

Friday 17th February 2017
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just disconnect the control box - you might be lucky and find that the factory fitted it into the space around the gear shift. lift the gearstick surround and root around for a (usually) yellow box. unplug it and all will be well.

the meta alarm fitted to alfa's is notorious. fortunately, if you're bothered, many many folks out there can refurb them without too much wallet grief

paul