Car not starting security light keep flashing put in new ignition switch
SOURCE: The security warning light keeps on flashing after
This is probably caused by the manufactureres alarm system. try inserting the key in the drivers side door and turn the key all the way in either direction. do this when all doors are shut.
SOURCE: When we get in the
This depends on the type of security system. Some security systems use the red flashing light for the indicator that the door is open. If the key wont turn at all then the problem is with the key. Most security systems will allow the key turn and the engine will roll but the car will not start due to the immobilizer.
So what you have to do is check and ensure that the key is the right one because security systems do not stop the key from turning. Check the key then contact the supplier of the security system if it is a new system. feel free to request further support.
Hope this solution has been helpful?
SOURCE: 98 bravada starts then dies security light is flashing
You state that the vehicle starts, then dies. Does this happen with the key or with the remote starter?
If this happens with the remote starter, there may be an issue with the immobilizer bypass. If the bypass you have installed is the Passlock SL2, Check the power, ground when running and chassis ground connections as well as the data and ground connections at the steering column.
The Passlock SL2 should not prevent the vehicle from starting because no wires are cut. The resistance may fluctuate between the key and BCM from time to time so, the SL2 should read the accurate resistance each time the key is turned to start the vehicle.
If this issue is occuring with the key, try to reset the vehicle security: Apply the vehicle parking brake. This will keep the day time running lights from coming on and draining the battery during this procedure. Turn the ignition on (make sure it's ignition and not accessory), DO NOT ATTEMPT TO START. If you attempt to start the vehicle during this procedure you will have to start over.The security light will flash during this time. This process takes approximately ten minutes. After approximately ten minutes, the security light will come on solid and then go off. If this happens, turn the vehicle off, then start the vehicle. This is considered a soft reset.
If the security light continues to flash after ten minutes, turn the key off and attempt the reset again. Two to three attempts is a hard reset.
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