Vats gone bad?
Thread Starter
Staging Lane
Joined: Apr 2014
Posts: 94
Likes: 0
From: Michigan
Vats gone bad? When i turn my key the security light goes on. I can unlock my doors, but if i try to lock them nothing happens, I push the button three time and the car ding/bongs a few times. turn the key and it doesn't crank. I pulled out my IBCM and checked it for bad solder joints and they all looked good. I've heard the vats will respond to a bad key cylinder like this but If I replace the cylinder I have a 1 out of 15 chance of getting a correct one? a new key cylinder cost about 50-70$ while a new IBCM cost hundreds. Is their some kinda trick o' the trade anyone knows? I'm at my wits end here, has anybody had this happen before?
So when you try to lock the doors they don't lock and you get a series of dings? That sounds like what happens when you have the key in the ignition. It's to prevent you from locking your keys in the car. That might point to a bad ignition dinger contact in the steering column.
The ignition cylinder does not read the pellet value, the BCM does. When you order a replacement cylinder, it will come with a blank key cut to the cylinder. Then you bring that key with your old one to the dealer and they cut you a new key with the proper pellet.
The ignition cylinder does not read the pellet value, the BCM does. When you order a replacement cylinder, it will come with a blank key cut to the cylinder. Then you bring that key with your old one to the dealer and they cut you a new key with the proper pellet.
Vats bypass in a nutshell is to check the resistance for your key with a multimeter, go to radio shack and buy resistors that add up to the same value as your key..
Then just wire them into the little pigtail that connects to the ignition cylinder.. Now your bcm will read the resistor and won't set off the security..
The wiring in the ignition cylinder gets messed up sometime and there's a loss of connection between the keys resistor and the bcm signal pigtail, so basically we're skipping the wiring and connecting directly to the feed wire
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Ok. But what if I have no security light on? Then what do I do? Also I cannot program a remote for the keyless entry. Dealership couldnt even do it. I know its something within the security of the system
Thanks for your time Burken01
Thanks for your time Burken01
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Verdad Gallardo You could try the bcm solder trick? Look it up