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John
John, Master Automotive Technician
Category: Car
Satisfied Customers: 9176
Experience:  ASE A1-A8 & L1 Master GM Tech 40 years experience
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98 CADILLAC: eLECTRONIC..THEFT ANTI-LOCK IS ACTIVE AND CANT disable

Resolved Question:

MY 98 CADILLAC GOLD KEY DEVILLE WILL NOT CRANK. eLECTRONIC DASH IS NOT SHOWING AND THEFT ANTI-LOCK IS ACTIVE AND CANT DISABLE
Submitted: 8 years ago.
Category: Car
Expert:  John replied 8 years ago.

HelloCustomer

Most likely your computer theft system has set a failure code & disabled the system.First I would check the battery condition .By this a I mean does it have enough stored power to start & operate your vehicle.The battery should be load tested to make sure it is good. A poor connection at the cable connection can cause this problem.To inspect this the cables must be removed at the battery & inspected for corrosion & burns.If corrosion is found ,replace battery & cable,not just the end of the cable.If not the power supply try to relearn the theft control.Whether or not this works you need to have the vehicle scanned for codes & problems so it does not fail you.It is possible you have more than 1 problem,but getting the vehicle started is #1.Clean the ignition key off with a cloth before trying this procedure.

 

  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to start the engine, then release the key to ON (vehicle will not start).
  3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
  4. Turn OFF the ignition, and wait 5 seconds.
  5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes (the vehicle is now ready to relearn the password XXXXX the next ignition switch transition from OFF to CRANK).

    Important: The vehicle learns the password XXXXX the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

  6. Start the engine (the vehicle has now learned the password).
  7. With a scan tool, clear any DTCs if needed (history DTCs will self clear after 100 ignition cycles).

 

 

 

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