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Hey guys. Of course, I'm having the usual immobilizer symptoms. Car starts, shuts off after 1 second. I've been through hours of online forum searches but everyone seems to have differing symptoms than myself.

1. Car has been sitting for about one month.
2. Installed brand new battery 2 months ago. Drove car for a month. Ran peefect. Parked it.
3. Got in car last night to start it, turned key and noticed instrument cluster was not lit up. Little square odometer screen is not showing anything. Blank. Gas gauge not moving when key is turned to the on position.
4. When car runs for the one second the rpm gauge doesn't move.
5. Immobilizer light not lit up or blinking.
6. Only lights that appear are the ones in photo.
7. Key in ignit in beep not sounding.

What I've done so far that I've seen other people have success with in the forums.

1. I've checked all fuses in and out of car.
2. Disconnected battery for 10 minutes.
3. Disconnected battery and touched terminals together for 10 seconds.
4. Disconnected negative cable and held brake for 10 seconds.
5. Check for codes with a small scanner but none appeared.


I'm at a total loss. For the life of me I don't understand how a car runs perfect when you park it, but when you get in to drive it again it has all these issues.

Any help would be greatly appreciated

Thanks

Pat
 

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Check the battery voltage. Seems like if the engine starts it should be adequate, but these cars are finicky about battery voltage.
 

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Rodent or water damage?

Engine may die due to fuel pump not running because lack of a crank signal to keep the fuel pump running??
I I just saw your answer to the question about the bug starting and shutting off and the instrument cluster not responding to anything .mine is doing the same thing. It all started a few months ago when I went through a puddle and my battery light came on and other dash lights came on in my Winchell wipers started slowing down. So I bought a new battery in town just so I can make it home. Thinking it was an alternator. Parked the car my husband took my brand new battery out and put it in our truck. My car started growing moisture and mold inside of it so I wanted to start the car and turn the heater on to try to dry some of it up. So I put the new battery back in the bug and now when I start it it starts and shuts down I thought it was a mobilizer so I did all the weird things to reset it but the immobilizer security light is not blinking I noticed that my instrument cluster has fog inside of it and the speedometer or the gas gauge nothing moves.
 

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There can be a number of issues; that can cause the immobilizer to kick on. Based upon, the mold, moisture and fog, functional issues with your speedo cluster, I can only assume, you have water ingress issues (water getting inside the car). The water drains commonly get clogged and then, water starts getting inside the interior and may have caused, damage to the speedo cluster or other wiring harness issues or corrosion.

You could clean out the water drains and pull the speed cluster, see if water is getting into it, check the plug/terminals for green corrosion or harness damage. A damaged speedo cluster, can cause the immobilizer to kick on or a cause no start condition. If the speedo is damaged or isn't working correctly; the cluster could be shipped to a specialist for repair or you could have the immobilizer deleted from the cars computer, eliminating the immo altogether.

Having a VW scan tool; to scan for codes, would be helpful and could read vw factory codes, that could help you narrow down the problem.

Here are a number of videos; that show you how, to check for leaks and unclog the water drains:


Aside from fixing the water leaks; I would start with confirming, the charging system is working as it should, if the immo light is blinking, you can do a hard reset of the ecu by removing, then touching the positive and negative battery terminals together, then reinstall them on the battery. A low battery or charging issue; can cause a no start problem and the immobilizer to kick on. If the battery was dead for a while; you may have lost your throttle body alignment settings and that may require a vw scan tool, to adapt and restore them, so the car can start.


The basics, shouldn't be overlooked; ignition spark, compression, fuel pressure etc.

Let us know, what you figure out and if you want to fix things yourself or take it to a shop, have them handle things. Thanks.
 

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Thanks for all your info . I have a scanner and it reads no codes . Also I have tryed the battery cable thing and didn’t change anything. It starts just fine every time but then shuts down after about 2 seconds . Even if I am pushing on the gas . I had a emobalizer issue with my Jetta befor and it did the same thing & I left the key on for 20 min and then it fix it . But the bug is not blinking secerity light . The battery is brand new . I just bought a canopy tarp thing to put over it so I won’t get more water in it . It try’s to grow mold every 2 days . There is slot of Moisture in it .
 

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On a nice sunny warm day, I realize where you may be location wise, those days may be few and far between. On one of those kinds of days disconnect the battery and open the back remove the spare tire cover, open the windows and doors remove the floor mats and let it sit in the sun for as long as possible keep an eye out for rain. If your car has a sunroof open it. If you can do this for 2 or 3 days in a row that would be even better. That would be the best way to dry your car out. Drying your car out will eliminate the mold.

As previously mentioned find out where the water is getting in and fix it or the problem will continue. If you think the immobilizer is causing issues you can send it out and have an immo delete done or have it fixed.
 

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Thank you .. I Wish we could have a day or two of sunshine around here lately it’s just been a lot of rain. I did notice my instrument cluster was not working properly the RPMs does not go up the gas gauge does not go up when I turn the key only two dash lights come on the battery light and the EPU light . And when I try to hook my scanner up to it it doesn’t see the car at all so I think something in my instrument cluster has died from the moisture . ? ?
 

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You could remove the instrument cluster and bring it inside for a few day to dry out. Put it next to a furnace vent, wood stove or in a sunny location inside. This guy show you how to remove the cluster in the second half of the video the first half is the ecu removal.

 
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