does anyone know what model of the alarm that installed on the MY98 terzo as standard?
also, anyone still got this user manual of the alarm?
thankz any help!

The Sigma M30 has only been fitted as standard since 99MY.
I suspect that a 98 MY vehicle with have a Cobra Cat 1 of the era, but I'm afraid I dont know the model number.
SS

cheers sam
i can find the model number, is cobra 6422,but still can't find the user manual.
my car's battery gone dead last week, after a jump start, the remote just stop working, even i changed the battery on the remote. now i have to lock or unlock the car by using the key. that is so annoying. thats why i need the user manual to see any cure for this.
thankz anyway
andy

Do you have the remote with two grey buttons or has it got one yellow and one green?

If the first with two grey buttons then this is probably what you need to do.
Assuming the remote appears to work, ie the light comes on.

Press and hold both buttons together, the light will flash as you do this, wait till the light goes off (about 10sec) let go of the buttons and the light will come back on, press the larger of the two buttons, the light will flash then go off, press the same button again and it should arm/disarm.
If its the other type with the green and yellow buttons it may be a build up of carbon on the PCB, open it up and clean where the button makes contact with something that wont damage the circuit, or possibly need reprogramming.

IT WORKS !!!
thankz mate.
but i wonder why it happens like that?
thankz again mate.
andy

The 6422 was notorious for remote problems. The return rate on them due to dropping remote codes was unbelievable. It's something you will probably have to get used to.

nearly all cobras do that, it can happen as in your case from disconecting & reconecting the battery which will cause a slight power spike, and also if you use one remote 230ish (i think) times without using the second remote that will also knock out the coding for the second remote.