Alarm issues

[FST4RD]

So I replaced the MAF and fuel pump in my V6 GF8 WRX. Now randomly the alarm goes off.

I've checked the door sensors and they seem to be fine, I've taken the battery out of the remote and that makes no difference, the boot seems fine as in you open and close and the light goes on and off.

The plunger sensor thing under the bonnet was a bit rusty so I cut it out.

Anyone have any ideas?

[Joker]

 FST4RD said:

sensor thing under the bonnet was a bit rusty so I cut it out.

I have one

[FST4RD]

Well I cut the wire and earthed it and the alarmed beeped like I had left something open, so I didn't earth it and it armed properly... So I don't think it's that.

I'll check the boot again soon as that's where I spent my time changing the fuel pump over. Could have knocked something I guess.

[boon]

 FST4RD said:

Well I cut the wire and earthed it and the alarmed beeped like I had left something open, so I didn't earth it and it armed properly... So I don't think it's that.

I'll check the boot again soon as that's where I spent my time changing the fuel pump over. Could have knocked something I guess.

I'm a little bit surprised you can't work this out.

The bonnet switch earths when you open the bonnet and triggers the alarm to go off (or makes it think the bonnet is open when you arm it). When the bonnet is shut it's open circuit.

So by being super clever and removing a really, really important part of your alarm you've caused the issue.....

Edited July 12, 2015 by boon

[FST4RD]

It was doing it before I took out that switch, I only took the switch out because it was all rusted up and a bit dodgy. In getting a new one today,

But by cutting the switch off and not having it earthed the alarm will think the bonnet is closed regardless and should act normally.

[boon]

 FST4RD said:

But by cutting the switch off and not having it earthed the alarm will think the bonnet is closed regardless and should act normally.

Correct, is that not the case for you? Your previous post made it sound like that's what's happening.

[FST4RD]

No what I meant and I didn't make it clear, was that after I had done the work on my car the alarm started playing up. I cut the switch out as it was rusty and looked a bit dodgy but the alarm is still randomly going off. So I can safely rule that out as an option.

I've also ruled out both remotes as well, the batteries and buttons are all good.

I'll remove each door sensor and check them thouroughly next I think as well as the sensor on the boot.

Just wondering if there is something else I need to check?