Hi Nick,

The first thing I did was to remove the bonnet switch, clean it, and grease up to avoid water penetration, as this very often is the cause of the problem. This is the third time I have done that the keep the known issue at bay!

However, fingers crossed, the car has been alarmed from the key fob since early this morning, and has been as good as gold!

 

Hi! Mine went off this morning too, after a good p1ss down earlier. Where is the bonnet switch? (obviously under the bonnet, but where exactly?) I've never done this before - does anyone have any guidance notes? What sort of grease should i buy?

Shame Ronaldo went to Madrid, he had enough grease to do every s2000 bonnet in the uk.

 

It's the black plunger which protrudes on the O/S of the panel just in front of the radiators, and it is secured by a self-tap screw.

The purpose of the grease is to stop ingress of water down the plunger. As most greases are conductive, keep well away from the electrical contacts. I use a special grade of silicon grease.

HTH

 

Honda butchered the H&P unit badly and it really is a POS.
If it really starts to get you down a bucket of water is the best bet (cut the siren off and dump it in and it goes awfully quiet). After 6 years of it being a thorough pain in the proverbial I got mine ripped out and replaced with something decent. Best and pretty much only mod I've ever made

 

To be honest, does anyone take any notice of car alarms when they are going off? I understand central locking and immobilisers but if you saw or head a car alarm going off would you do anything about it?

I am not sure I would unless it was an obvious theft.

 

Nope, always a false alarm!

 

firstly i`d be disconnecting the under bonnet switch and trying it for a night or 2 with the switch disconnected as its a really common fault on nearly every alarm system on a majority of cars.

and a really random one, try opening and closing the boot. 2 people I know have had random false alarms and oddly when we opened then closed the boot they never returned.

 

[QUOTE=dennohue,Nov 6 2010, 03:21 PM]However, fingers crossed, the car has been alarmed from the key fob since early this morning, and has been as good as gold!

 

I thought if would be worthwhile updating this post as it might be of assistance to anyone who has a similar problem!

After alarming the car in the usual manner the false alarms returned in a spasmodic manner. I emailed Hamilton & Palmer with a description of the problem, and they emailed back suggesting that I spoke to their technical expert, who could advise on the way forward.

I rang this morning and spoke to Jim in the Technical Department. He did not think that the cleaning of the engine bay had any relevance, and that the problem was almost certainly degradation of the circuit board, due to its age. He also thought that, if that is so, the problem will not go away but will progressively get worse!

To remedy the problem I could either return the alarm unit for repair (which would mean the car was off the road for some time), or I could purchase a replacement circuit board for £163 + VAT (which includes carriage).

He confirmed that opening and closing the door, and then locking with the key would disable the alarm siren, which is what I have been doing.

I told him that I will live with the problem, for the time being, and see how it progresses. It may be that I will have to get back to him if the problem does get worse.

 

Useful info, thanks Dennis.