i changed the ecm and had it flashed now it starts but shuts off after 2 seconds an the security light blinks when it shuts off

Asked by Mar 23, 2016 at 04:31 AM about the 2006 Chevrolet Cobalt LT

Question type: Maintenance & Repair

1 Answer

3,505

It sounds like the security system thinks the car is being stolen and shuts it down. Do the keys need to be reprogrammed due to the flash? Check your owners manual to see what the procedure is.

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