my 2002 chevy malibu keeps having the theft system kick on so i end up having to sit with the key in the on position for 10 minute until the light stops flashing is there a way to disable my theft system
Hi!This antitheft system is incorporated in with the car's computer. There really is no way to disable the security system. The system can be repaired, or may even be able to be bypassed. The most common failure in the antitheft system is the ignition lock cylinder. The body control module is getting an incorrect signal from the lock cylinder. Replacing the lock cylinder and going through the 10 minute re-learn that you have been already using should correct the problem.I did some research on bypassing the system, and I will post a copy of the procedure that I found for you. It basically uses the same type of system that is installed in these cars when a remote start is installed to "fool" the antitheft system. Here's the procedure that I found:PASSLOCK I or II BYPASS:The following is a procedure to bypass Passlock I or IISystems for vehicles in which remote start/stop systeminstallations are required. This procedure is requiredbecause a remote start system will not function with thecurrent Theft Deterrent System (Passlock) which is includedon many 1996 and up GM vehicles.Please note that this modification is intended to be usedonly in conjunction with the installation of a remotestart/stop system and does not provide a procedure toinstall a remote start/stop system.CAUSE If an attempt is made to start a vehicle by a meansother than a key rotation in the ignition switch, the BodyControl Module (BCM) will interpret this start as a vehicletheft and disable the fuel injectors.CORRECTION A minor wiring modification may be made to allowthe vehicle to be started remotely. This modificationincludes adding a switch to allow the customer to select"ON" to allow remote starting or "OFF" for normal Passlockoperation.CAUTION: When this modification is performed and the switchis set to the ON position, the theft deterrent feature willbe disabled. When the theft deterrent is disabled theSECURITY/THEFT SYSTEM telltale will light up indicatingthat the theft deterrent system is NOT functioning.PASSLOCK MODIFICATION Refer to appropriate GM servicemanuals and/or SVMQP Electrical Guideline Manual forinstruction on splicing and electrical connections. 1.Select a suitable on-off switch (see note below) which willbe used to disable/ enable the Passlock System. Mount theswitch in a location such that it is accessible to thedriver and will not interfere with normal vehicleoperation.NOTE: This is an extremely low current circuit (approx.7mA), it is therefore very important that a high quality,low energy, fast acting switch be utilized for thisapplication. 2. Turn the ignition switch to the OFFposition. 3. Locate the Main Ignition Switch Harness in theColumn. GM's Passlock System wires exit the Ignition SwitchTumbler together and then join with the Main IgnitionSwitch Harness. (See http://www.bulldogsecurity.com/ orhttp://184.108.40.206/diagrams/diagrams.asp and select yourMake, Model and Year for wire colors and clues on thequickest way to access these wires.) 4. Locate the YellowPasslock Data Wire which is included in a bundle of threetiny (20 GA) wires wrapped in friction tape. Cut this wireand splice a 0.5mm2 (20 GA) yellow wire to each end of thecut wire. Keep wire length to a minimum. Route modificationwires clear of moving parts.Connect the yellow wires to the switch such that thecontacts are OPEN when the switch is in the ON position. 5.Turn modification switch to the OFF postion (contactsclosed). 6. Start vehicle to verify normal operation. Ifengine "cranks but will not start" recheck the switchposition (contacts should be closed), wire connectors andmodification wiring.SWITCH OPERATIONTo enable remote start: Start the engine with the ignitionkey (modification switch must be in the OFF position). Turnmodification switch to the ON position (contacts open). TheSECURITY/THEFT SYSTEM Telltale will light up indicatingthat the Passlock System is inoperative. Once theSECURITY/THEFT SYSTEM telltale has been on for at least 5seconds the vehicle can be turned off and then remotelystarted.To disable remote start: The Passlock System can bereactivated by turning the modification switch OFF(contacts closed). Vehicle can either be running or offwhen this is done.Please note that the VCM/PCM will record Diagnostic TroubleCodes (DTCs) related to the security system when themodification switch is in the ON position (circuit open).This is due to the way that the VCM/PCM interprets thiscondition.NOTICE Any condition which removes battery power from theVehicle Control Module/Powertrain Control Module (VCM/PCM)(e.g. dead battery, disconnected harness connectors, etc.)will prevent the vehicle from being restarted. If theengine exhibits a "cranks but will not start" symptom,place the modification switch in the OFF (contacts closed)position. This will reactivate the Passlock System andallow the vehicle to be started with the ignition key.Good luck and let me know if you have any more questions!