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Sedans Volkswagen Jetta Volkswagen Jetta Security System
22 messages, Last post on Aug 10, 2009 at 4:30 PM
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| HELP!!! How do you deactivate a 96 jetta volkswagen. I can't start the car. This is a brought used vehicle which I didn't know had an alarm. I think I made a mistake and activated it through the ignition alarm when I parked and shut off the engine. It seems like it has a duel alarm. I can deactivate the alarm by locking the doors and unlocking with the key. However, when I tried to start the engine it won't start. I don't see any switch that is related to the alarm to deactivate. | |
I bought a 2005 1/2 (newer model) Jetta about a month ago and just within the past week it decideds it wont chirp after I lock it. So I dont know if this means its not setting the alarm or what. I hit the lock button twice and normally it chirps to let me know its armed, but i doesnt. Any ideas on whats going on?
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Replying to: breanimal (Oct 03, 2007 7:02 pm) Also, I thought that pressing the button on the keyfob ONCE sets the alarm... has VW changed the way the keyfobs work? The only double-click on my keyfob is to UNlock all doors. (otherwise only drivers door unlocks)
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Replying to: bpeebles (Oct 04, 2007 4:23 pm) I don't think it has changed, we lock all doors with one press on our 2005.5 and there is a little chirp. I assume that when all doors are locked the alarm is set...is that correct? Alarms are not something we would ever worry about, those things are just an annoyance as far as I am concerned, we just want the doors locked.
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Replying to: jeffyscott (Oct 05, 2007 5:42 am) Actually - I beleive that all the doors can lock and the alarm may NOT be set. The way to KNOW that the alarm is "armed" is to see the blinking indicator on the top of the drivers door. (The A4 vehicles have the indicator there... your A5 may have it in differnt location.)
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Replying to: bpeebles (Oct 05, 2007 4:29 pm)  . The red light does blink on ours after locking with one press on the remote. I checked and our manual says: "Activating the alarm system - Lock the vehicle"
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Replying to: jeffyscott (Oct 06, 2007 3:16 am) |
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| how do you bypass the anti theft system so it will shut it off and i can start my car.please help me | |
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Recently bought a 2000 Jetta TDI. Installed new battery thing morning due to the fact that the car had been sitting for several months wihout one in it. Engine spins over fine and starts for about 2 seconds, then promptly dies as if you cut the engine off yourself. There is a light flashing on the dash that looks like the outline of the car with a key in the middle of it...I'm guessing it is a security system light. Any ideas on how to reset the security system? I also need ot know how to get the security code for the radio...Thanks for any input you may have.
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Replying to: wayneswirld2 (Nov 21, 2007 10:15 am) If you are lucky, a previous owner has written the battery code in the ownersmanual. If not, then you need to pull the radio and get the serial # from it.... and VW dealership can decipher the code from that. ---------- Now - as for starting and immediatly quitting. You are correct in assuming that it is the "immobilizer" which behaves like that. This is NORMAL for the immobolizer to 'forget' the SKC (Secret key Code) if the vehicle is not started for several months. The security system on VW is based on the Mercades-Benz design which is nearly impossible to bypass. (You car cannot be stolen by starting the engine!) You MUST use a key which is both cut correctly for the keyhole and satisfies the immobilizer built into the dashboard electonics. (simply cutting a key to fit is not good enough) Some people with your problem have reported that they left the key in the ignition with ignition on for about 10 minutes.... and the immobilizer light was now extenguished. They could then start the engine. Others have reported that the computer needed to be "rebooted". I am not sure what that means There is a very slight possibility that the reciever (ring around the ignition key-hole) is defective.... but that is the best advice I can give you. There is a way to temporarrly "bypass" the immobilizer. There is a step-by-step procedure which involves using the tripmeter to input a secret code into the computer. The secret code is provided by a VW dealership with the following prerequsets; *)Customer must provide proof of authorized vehicle operation/ownership with vehicle documents and identification. *)Key tag with covered secret number is available. *)Mechanically correct key available. Perhaps your problem with starting and staying running is NOT the immobilizer at all. Perhaps you need to check for airleaks in the fuel system. Sitting unused for several months may have dried out the seals in the injector pump so it is sucking air. |
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