98 chevy cavalier theft system?

[ssleepwalker]

i have a 98 cavalier and the theft light is on the car wont start it gets no fire or power to the fuel pump doe's anyone know how to reset this or bypass it altogether

 

[#14 Chevrolet In 2009]

Like John said.
Crank the engine over, when it doesn't start let go of the key leaving the ignition on. The 'theft' light will be flashing. Leave the key on until the 'theft' light stop's flashing and turns off. This can take 10-15 minutes so make sure the battery is good. When the light does go off. Turn the key off for 5 seconds then try to start it again. It should start!
This is the reset procedure. Sometimes, it may take more than 1 attempt at said procedure.

However, this is not a fix. It may leave you stranded again in the future. You will have to replace the ignition cylinder that the key go's into. The 'theft' sensor is a chip on the cylinder, not the key.

 

[John]

With a tech 2 You can enter the bcm and in the theft control You may be able to get it going yourself. Try another key also.
Attempt to the start vehicle. The vehicle will start and then stall.
Leave the ignition on until the Theft telltale turns off in approximately 10 minutes.
Turn the ignition off.
Restart the vehicle. The vehicle will start and on this attempt. The password is now learned. If Not running call the dealer!