CAR WON'T START/CAR ALARM

Sounds like the battery or a short in the battery line. The VW alarm will come on if you disconnect the battery. Use a voltmeter (or mutlimeter) to check the battery voltage (red lead on positive pole; black on negative; range on 0-50V). When car is not running, you should see 12V; when car is running, you should see 15V (if the alternator is working). You can also test the battery charge by turning on the headlights. If they brighten when you rev the engine or if the dim when you turn on other electrical accesories, then it is likely the battery.

You must have left the truck tamper switch disconnected or damaged it.

you can leave it unlocked,as the immobiliser will take care of any potential thief, as if you dont have the actual key,you cannot start the car.the key is coded to the actual car and can never be duplicated.as far as the alarm is concerned,try this,put the key into the drivers door and unlock/hold the key over for 30 secs,the windows will go down,then lock/hold the key over,the windows will go up.wait 30 secs,then press/hold the unlock button on the remote for 30 secs,you have just reset the immobiliser......

Insert the key into the door lock on the driver side and move it to the unlock position two times quickly. That should turn off the alarm.

if it fires then dies, you have to reset the alarm system with the key/remotes???otherwise you need to plug in the diagnostic computer(saves hours of "fun")

sounds like the rear door sensor is kaput.all doors need to be shut before alarm will stabilise/you can leave the car open as if you dont have the key(with the correct code)the car is dead/immobilised.not even hot wiring will start car....

First guess is that your battery is worn out, a new one will probably do the trick

the computer system that runs the car itself has a Vehicle Theft Deterrent Module build into the OBD II operating system that runs the ignition timing everything. It does make it neearly impossible to steal the car, only one draw back the Dealer is the only place you can get it serviced.

the same thing happened to my 1996 jetta trek.

when the alarm went off on me and the car would not start i walked around to the passenger door, locked and unlocked it, therefore the alarm went off.

but the alarm only went off if the car battery was low and had trouble starting.

Hooked new battery up, alarm went off, waited until it stopped, locked car with fob then unlocked and the car started.