Thread: horn going off when lock car

Originally Posted by clubagreenie

The vol sensor detects internal movement, triggers alarm. Not functional (in terms of triggering alarm) when running.

We've had the "Quality of official documentation" discussion ad nauseum in other threads. You can open the bonnet with system "unlocked" and doors not opened. The sensor is active in some capacity as I've had to trace a fault in a system where the sensor was faulty and triggering horn on attempt to lock. Replace, went away. Sit in car waving at it. Duplicate result. Basic scientific process.

Ah yes, I know the ones you mean, now. They detect air motion inside the car.
I just didn't connect them with the discussion about the horn sounding when doors are locked after the bonnet having been open and closed.
I have had them activate the alarm if I leave windows down a bit when I lock the car, in order not to have the car like an oven when I return. If a gust of wind comes up, they set off the alarm because air moves around inside the vehicle.
I have seen others place sticky tape over them to get around this - I guess it depends on whether having a cooler car inside is more important to you than the risk of not having a car at all!

Originally Posted by AndrewMilne

I have had them activate the alarm if I leave windows down a bit when I lock the car, in order not to have the car like an oven when I return. If a gust of wind comes up, they set off the alarm because air moves around inside the vehicle.
....I have seen others place sticky tape over them to get around this - I guess it depends on whether having a cooler car inside is more important to you than the risk of not having a car at all!

It's easy to override that, when you want to leave the windows or the sunroofs opened a bit to let the air move lock with the key in the lock not with the fob, this will disable the ONLY the volumetric alarm(all the rest will be active), it's a built in feature... when you unlock use the fob again...that's all

Originally Posted by sierrafery

It's easy to override that, when you want to leave the windows or the sunroofs opened a bit to let the air move lock with the key in the lock not with the fob, this will disable the ONLY the volumetric alarm(all the rest will be active), it's a built in feature... when you unlock use the fob again...that's all

Also handy when dogs in the car on a warm day with windows down
Don't need volumetric sensors with dog in the car anyway (unless it's a Chihuahua )

Originally Posted by sierrafery

It's easy to override that, when you want to leave the windows or the sunroofs opened a bit to let the air move lock with the key in the lock not with the fob, this will disable the ONLY the volumetric alarm(all the rest will be active), it's a built in feature... when you unlock use the fob again...that's all

Sierrafery,
What DON'T you know about these vehicles?!
That's a great tip - thank you!
Andrew

Originally Posted by AndrewMilne

Sierrafery,
What DON'T you know about these vehicles?!
That's a great tip - thank you!
Andrew

Everything that isn't in RAVE

Don't think it's easy to read 2467 pages... few times...as to know them by heart
1612=workshop manual
712=electrical library
127=circuit diagrams

Originally Posted by sierrafery

Don't think it's easy to read 2467 pages... few times...as to know them by heart
1612=workshop manual
712=electrical library
127=circuit diagrams

Hi Sierrafery,
I'm sure that is right.
Many times I have noticed your willingness to help anyone with practically anything.
Some may not, but I at least have appreciated it. I daresay that many others do, too.
AndrewM (Western Australia)

Originally Posted by Roverlord off road spares

The bracket that holds the bonnet switch is easily bent. Leaning over the vehicle and reaching in to work in the engine bay can sometimes cause you to lean on the bracket , moving it slightly. Then when the bonnet is closed it triggers a miss lock on the switch sounding the horn.
By bending the bracket back to the correct position will often cure the problem of the horn going off.

Awesome, will try this! Which one is the bracket tho?