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Discussion Starter #1
Well, not one week into GT ownership and I've got a problem with the alarm. Keeps telling me a door is open which I've checked (which it isn't) and then it goes away. Alarm went off half an hour after locking it last night and again at 1.00am. Fortunately, my bedroom faces the street so I had the key and unlocked it.
Does shutting the door with the key not enable the alarm (hasn't gone off in the past hour now) so I and the neighbours can sleep soundly or is it armed anyway?

Any ideas as to what I can do to trace the problem or am I going to need a specialist take a look at it?
 

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Discussion Starter #3
Passenger but it also just went off when it hadn't shown an open door.
 

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I think it may be the wiring at the door hinge. I've noticed this seems to be a bit of a weak area.

It would be a bit of a pain to trace the wires. A multimeter would be needed and I usually manage to tighten the female socket a little out put a slight Z bend in the male pin and ensure the end is positioned exactly as before.
 

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Discussion Starter #5
Autolusso are taking a look at the gear change next week. It's a bit stiff. Clutch and flywheel are both fairly new so it seems to be either the bushes in (or around) the selector or the unit itself. I'll ask them about the alarm issue then.

No alarm going off since Monday night since I've been locking the car with the key. I'm assuming the remote is what turns on the alarm.
 

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Discussion Starter #7
Thanks, that's good to know. At least I won't have the neighbours hammering on the door in the middle of the night.
 

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Discussion Starter #8
Now I have a warning light about the VDC system failure while reversing to park last night. Pressed ASR and restarted the engine and it went away. I bought this car less than a fortnight ago from a dealer so it must be covered under the Sale of Goods Act. I don't want to reject the car as otherwise it's great but do you think I'm entitled to some help in getting the problem solved?
 

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I guess it sounds to be the usual thing of oxidation of terminals at the main distribution for positive terminals around the battery and fusebox, or possibly one or more of the main earth grounding points (such as the one near the battery on the inner wing- before it goes to the gearbox earth).

There have been quite a lot of posts with this type of fault and I think it is just a matter of time before all the remaining cars suffer from some electronics malady. The ASR/VDC send to be the most sensitive system which is why it is the thing which flags up a fault first.
 

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Discussion Starter #10
It's going to Autolusso next Friday and I'll get them to take a look..

Incidentally, the battery is nearly brand new, fitted about Sept 2020. The terminals seems tight and there's no obvious corrosion.

What is the point of the ASR/VDC? More of a gimmick than anything else.as far as I can see.

Regarding the ASR isn't it a legal requirement for all road cars to have anti-lock brakes now?
 

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I think new cars all have ABS (brakes).
The oxidation I mentioned will be of earth points and around maxi fuses and fusible links.

I think often 30 mins to an hour with a wire brush and some ACF-50 (anti corrosion spray) is all that is needed to eliminate these electrical issues. I did so on the 156s after the TS went a bit maximum overdrive and they've been ultra reliable in the last 2 years since.
 

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Discussion Starter #12
I'll take a look tomorrow..
Where are they on the GT?
 

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Main terminals/fuses in front of battery.
Earth point lower and I think slightly in front of battery. I took battery box off though for access. Plastic clips were the most awkward part of that. If dismantling, take reference pics of necessary.
 

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Discussion Starter #15 (Edited)
I think you might be on to something. Today, I released the catches on the box in front of the battery and loosened and pushed the thick cable connector back after I had reseated the lid.. Since then no warnings about the left hand door being open and when I tried enabling the alarm for a while it didn't go off. Turned it off for the night and will test it further tomorrow. Might need a bit more work on it but it looks promising.
 

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Discussion Starter #16
Since my last post the alarm hasn't gone off at all. Occasional told the left hand door is open. It's going into Autolusso on Friday so I'll ask them about it then. I think they are going to take a look at the car and let me know what else needs doing.
 

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Discussion Starter #17
Well, back to square one. Left door warning is back and the alarm going off has returned. It's worse when it's cold outside it seems if that has any bearing on it..
 

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Discussion Starter #18
I'll give the battery cleaning suggestion a go then the maxi fuses and fusible links.
Couple of questions..
1. If I disconnect the battery (negative connection first). Will it affect any settings? The car has an aftermarket Pioneer fitted and I've read elsewhere that I wouldn't need a radio code afterwards
2. Can I just disconnect the large connector from the large fuse box and does it involve prising it off or is there a connector inside the box which means removing the lid of the fuse box first?
3. If I'm following the advice above do I just need to loosen each terminal connection, clean them and reattach when finished?


Thanks..
 

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Discussion Starter #19
Took a look at the battery connections and cleaned the 2 main ones. Why are there so many connections coming off of the positive connection? Do these not need a fuse?
I'll give all of them and the large fuse box ones a good clean this week.
 

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How many alarm lamp flashes do you get?



If the alarm LED on the dashboard continues to blink after disarming the alarm with the key, (for a maximum of 2 minutes after disarming or untill you turn on the ignition), the frequency indicates:
1 x : one or more doors
2 x : boot
3 x : hood
4 x : ultrasonics
5 x : tilt
6 x : disconnecting cables in order to start car
7 x : disconnecting battery or keyswitch
8 x : disconnecting connection between siren & alarm
9 x : at least 3 causes
 
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