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2000 Silverado 5.3 remote-start dies after starting


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Posted

I bought this truck recently and it came with a remote-start system already functioning properly.  I recently programmed a new FOB (which caused me to have to also re-program the old FOB), and now the remote-start will start the truck, but it then immediately dies.  It will continue to try to start the truck on its own, but always dies immediately.  This type of remote-start uses the original key FOB and it is a 3x-lock type (I press the lock button 3x and then it starts).  Again, I don't know the brand of remote-start system, but I'm guessing that it is the bypass module that needs to be recalibrated for the truck???  Do you think the procedure in the following link is what I need to do?  I don't want to try it and accidentally screw it up more.

 

It starts just fine with the key, though.

 

https://cdn02.fortin.ca/download/24951/passlock-sl2v2_revl.pdf

 

Mike

Posted

Are you getting any security lights on the dash? The start/shut off instantly is a sign that the BCM is not satisfied with the signal the PASSLOCK sensor is sending to it. That truck will either have a bypass module as you stated or a resistor in place to send the signal to BCM tricking the truck into thinking it always has a key in it.

 

I recently just battled with mine on a similar issue but the alarm system had been removed from my truck. (

)

 

Read through my thread and you may just need to do the relearn procedure for the key to get things going again. 

Posted

Unfortunately, it doesn’t look like it is a relearn problem....with the keys anyways. When I put the key in and turn to ‘on’, the security light doesn’t come on.


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Posted
On 12/24/2018 at 12:56 PM, Grdsman said:

Unfortunately, it doesn’t look like it is a relearn problem....with the keys anyways. When I put the key in and turn to ‘on’, the security light doesn’t come on.


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I would trace the yellow wire back from the ignition housing back to find the passlock bypass whether it be a module or resistor. You may also want to check the brake switch as a lot of aftermarket remote stars have a kill switch wired to them. If it starts, then immediately dies (like within in a second) it really sounds like the security system is not happy. Have you sat inside the truck and remote started to check for the security light?

Posted
I would trace the yellow wire back from the ignition housing back to find the passlock bypass whether it be a module or resistor. You may also want to check the brake switch as a lot of aftermarket remote stars have a kill switch wired to them. If it starts, then immediately dies (like within in a second) it really sounds like the security system is not happy. Have you sat inside the truck and remote started to check for the security light?


I’m thinking the same thing. I just don’t know how to fix it yet. Here is a video of what I’m experiencing.






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Posted

what brand remote start is it? some of the older remote starts if the battery is disconnected or the battery becomes weak/discharged the remote start module resets programing features.  some features are tach sensing or voltage sensing. if placed in tach sensing it needs to be programed, if voltage sensing it will just read 14.4 and stay running. to me sounds like its not getting a tach reading and shutting down. what brand remote start is it and i could look up programming features.

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