ALARM/CENTRAL LOCKING/IMMOBILISER

[blackant]

Have a very sensitive alarm system on my car. Anyone know of a good alarm tech in the Melbourne N/NE area? who can alter or remove the alarm? cheers

[Pamex]

The only one I can recommend is McDonald's auto electrical out in Station Street, Ferntree Gully. He took out my immobiliser when I had a CBF moment and a wallet full of cash recently. Slow but thorough. Cheap too.

On a more serious note... Peter Black asked me to come on here and abuse you with all his regular slurs about driving an MX5. My advice, next time you see him call him Petey Pie and that at least you don't have a 300zx lawn ornament and all will be rectified in the universe!

Sorry to everyone else who is now sitting reading this saying 'WTF is she talking about?'.

[meanmx]

Pam, WTF are you talking about.

Now back on topic. If you are able to have a look around your car and find the alarm module, the majority of them have either a pot that turns down the sensitivity with a small screwdriver, or you can adjust the sensitivity with the remote but you will need the manual. Hope that helps.

Ben

[Okibi]

I have a photo of the adjuster on the NB8A factory microwave sensor somewhere .... is it a Mazda alarm or aftermarket?

[blackant]

Could not find module but will have another go in hunting in down.

Pam - recent Top Gear moment springs to mind where 300zx owners were likened to a well known Soho porn club owner, big glasses, big hair and big moustache...yep...the spitting image of the aging Peter 'Beaneater' Black. He may find it interesting driving around in a 'Maxima Coupe with 13 inch wheels' visiting every petrol station he passes to buy yet another set of oversized sunglasses...but everyone else regards it as a replacement for a lack of....

[Pamex]

Hah! Brilliant!

Don't worry, I'm taunting him on MSN as I type. It's like a full time job.

[Okibi]

Are you looking for a microwave sensor? Try under the centre console.

[blackant]

not sure what type it is but there is no evidence of sensors so i am not sure how it 'goes off' when you open the door or boot. will have a look under the centre consol, cheers

[Okibi]

Do you know about your bonnet/boot pin switches?



When your bonnet is up the spring inside the switch pushes the top black pin bit up.

Look at the right switch in the photo, see that spade shaped connector at the bottom? That's where the alarm attaches to.

When the pin is fully up that spade bit contacts with the bottom of the switch and "grounds" the alarm connection to the car's chassis.

If the pin doesn't get pushed far down enough when your bonnet/boot is closed than the spade part of the switch could contact and trip the alarm, other metal objects could also contact with this and "ground" out the switch and trip the alarm.

Sometimes the pin can also get bent and trip the alarm.

I hope that explanation makes sense.

One way to test for the fault is to alarm your car and bounce the bonnet then boot and see if either set off the alarm. If that doesn't work try pulling on the locked doors and see if that sets the alarm off. If you have a microwave sensor put the soft top up, alarm the car and try placing your hand on the top of the roof, see if that sets it off.

[blackant]

if the roof is down and the car is armed, if you then drop your keys into the car and they land on the seat, the alarm goes off

[Okibi]

So it should ! Sounds like a microwave sensor doing its job.

[blackant]

do they normally have some type of adjustment?

[bruce]

Yes, microwave sensors can be like a little black plastic matchbox with an led and screw adjustments. Mounted centrally, so could be around near the stereo or anywhere under the centre console. Find it and adjust it - or just turn the sensitivity right down (off-ish).
(regards opening doors or boots, there may not be switches, as the alarm would rely on a voltage drop of the interior or boot light switching on).