Thread: Vigo alarm problem.

Do you have a pressure sensor, or motion detector inside the vehicle? If so, then wind back the sensitivity a little.

Don't think so, it's just a standard toyota one. I think there are ones on the doors and bonnet if they are forced. I tried shaking the car, nothing.

Many vehicles have an internal pressure sensor inside the cab - to detect breaking of the windows. There would probably be a flashing led on the thing. The issue is that during a cold season, the pressure often changes & the sensors become overly sensitive.

If not, then try taking the battery terminal off for a while & allowing the alarm memory to fade (if so equipped).

The best thing would really be to take it into the local dealer & let them re-adjust it.

Take it to the dealer is probably the best thing to do! You may be right about the weather, it is hot here in the day but cold at night.

Pressure builds up during the day & then drops off at night. This makes the pressure-type alarm ultra-sensitive. Try leaving the top of one window cracked a tad & see if the pressure equilises itself. If it does, then find out where the sensor is.

Do you have cats in your neighborhood, that enjoy resting on your vehicle?

Do you park outside, or do you have a garage?

I don't think there is any motion sensor with the Vigo alarm, the only time mine has ever gone off is when I try and unlock the door manually after having locked it with the remote.
My kids will jump around in the pickup bed when the alarm is set with no triggering of it.

Originally Posted by watterinja

Many vehicles have an internal pressure sensor inside the cab - to detect breaking of the windows.

No they don't you clown

They have ultrasound/ultrasonic alarms which sends out a sound burst, receives the reflected sound and uses that as a "cabin fingerprint" and compares that to the previosly received and stored fingerprint.

If within limits, the last sample will be stored and next sample will be compared to that one and so on.
In this way, small changes like temperature drops or a flie moving does not trigger the alarm but major changes (breaking a window, picking a door lock and opening the door) in the reflected fingerprint will trigger it.

Previous generations of car alarms did not have a sound transmitter, only a microphone listening for glass vibration and they got easily triggered by heavy rain hammering the windshield.
A later improved version of them did listen for both glass vibration and glass break.
But they are all passe since around 10 years back.

Bung, do you get any indication from your alarm?

It is common that the cause of the last alarm is shown either in your instrument cluster or on a blinking led.
blink, blink pause blink,blink would indicate ciruit 2 and your car handbook
should then tell you what circuit/sensor that is.

Originally Posted by Bung

I think there are ones on the doors and bonnet if they are forced. I tried shaking the car, nothing.

Door switches are not used any more, they are unreliable and the ultrasonic sensor
takes care of opening the doors.
There should be a hood sensor to avoid that a thief disconnects the battery or the siren.
Many cars also have a tow sensor (level sensor).

Taking it to the dealership is my best advice for you.

Thanks for the input guys, I just like to know myself as much as I can before I let Somchai get his hands on it! Didn't go off at all last night but not very cold and I opened it up to get something out late at night so maybe a pressure difference sensor that can be adjusted?

Originally Posted by Bung

maybe a pressure difference sensor that can be adjusted?

Sorry Bung, but pressure difference sensors has never been used for car cab alarms.

I find it more likely that a temperature change has created night moist on your sensor.
That is if the alarm is triggered by the cab cicrcuit which we don't know for sure.

Originally Posted by lom

It is common that the cause of the last alarm is shown either in your instrument cluster or on a blinking led. blink, blink pause blink,blink would indicate ciruit 2 and your car handbook should then tell you what circuit/sensor that is.

Correct. The LED should be located just alongside the steering column to the right hand side in the Vigo. There's a few blank switch panels where it would have been installed near the mirror controls. The Toyota factory alarm only indicates whether the alarm has been triggered I believe, but doesn't indicate as to a reason.

Thanks for the info Lom, I was right about the sound factor but wasn't sure how exactly how they worked these days.

As for the Toyota factory alarm it's not a very good product, not to mention ridiculously expensive from the dealer - 9,000thb upwards!

A decent alarm with keyless remote should set you back about 2,000thb upwards.

I paid 3,200thb for mine fitted.

Originally Posted by EmperorTud

A decent alarm with keyless remote should set you back about 2,000thb upwards.

add a horn speaker under the bonnet , mono amp , multiple slot sound recorder with a multi button keyfob trigger and you can have your car bark at dogs when you see them pissing on the wheel

Originally Posted by baldrick

add a horn speaker under the bonnet , mono amp , multiple slot sound recorder with a multi button keyfob trigger and you can have your car bark at dogs when you see them pissing on the wheel

can I rig it so it yells 'don't cut in front of me you cvnt' which I would have to use 40 times a day...

Maybe I should get one of those "Step away from the car!". "You are too close to the car!" ones.