Wont start because of anti theft system it used to start for a short time now just turns over
my guess is that you posted all these related posts because younever read the FSM chapters yet? in immo.>?read chapter 8Q yet? ill post excerpts, and you can learn how it works?Guess 2 , you are trying to fix it SCAN tool free? that will never happen, (get one, ? Innova 3160)Connect the scan tool, crank for 5 seconds, behold , DTC errorssee those. post those and get help, or its all IMPOSSIBLE !!!yours is KJ 06Quote:SENTRY KEY IMMOBILIZER SYSTEMThe Sentry Key Immobilizer System (SKIS) is available as a factory-installed option on this vehicle. Vehiclesequipped with the Vehicle Theft Alarm (VTA) are also equipped with SKIS. The SKIS provides passive vehicle protectionby preventing the engine from operating unless a valid electronically encoded key is detected in the ignitionlock cylinder.The SKIS includes the following major components, which are described in further detail elsewhere in this serviceinformation:SENTRY KEY IMMOBILIZER SYSTEMThe Sentry Key Immobilizer System (SKIS) is designed to provide passive protection against unauthorized vehicleuse by disabling the engine after about two seconds of running, whenever any method other than a valid Sentry Keyis used to start the vehicle. The SKIS is considered a passive protection system because it is always active whenthe ignition system is energized and does not require any customer intervention. The SKIS uses Radio Frequency(RF) communication to obtain confirmation that the key in the ignition switch is a valid key for operating the vehicle.The microprocessor-based SKIS hardware and software also uses electronic messages to communicate with otherelectronic modules in the vehicle over the Programmable Communications Interface (PCI) data bus. (Refer to 8 -ELECTRICAL/ELECTRONIC CONTROL MODULES/COMMUNICATION - OPERATION).Pre-programmed Sentry Key transponders are provided with the vehicle from the factory. Each Sentry REmote EntryModule (SKREEM) will recognize a maximum of eight Sentry Keys. If the customer would like additional keys otherthan those provided with the vehicle, they may be purchased from any authorized dealer. These additional keysmust be programmed to the SKREEM in the vehicle in order for the system to recognize them as valid keys. Thiscan be done by the dealer using a diagnostic scan tool or, if Customer Learn programming is an available SKISfeature in the market where the vehicle was purchased, the customer can program the additional keys, as long asat least two valid Sentry Keys are already available. (Refer to 8 - ELECTRICAL/VEHICLE THEFT SECURITY -STANDARD PROCEDURE - TRANSPONDER PROGRAMMING).The SKREEM performs a self-test of the SKIS each time the ignition switch is turned to the ON position, and willstore fault information in the form of a Diagnostic Trouble Code (DTC) if a system malfunction is detected. The SKIScan be diagnosed, and any stored DTC can be retrieved using a diagnostic scan tool. Refer to the appropriatediagnostic informationpage 68SENTRY KEY IMMOBILIZER SYSTEMWARNING: To avoid personal injury or death, on vehicles equipped with airbags, disable the supplementalrestraint system before attempting any steering wheel, steering column, airbag, occupant classification system,seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnectand isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to dischargebefore performing further diagnosis or service. This is the only sure way to disable the supplementalrestraint system. Failure to take the proper precautions could result in accidental airbag deployment.The hard wired Sentry Key Immobilizer System (SKIS) components and circuits may be diagnosed and tested usingconventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring informationincludes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention,connector pin-out information and location views for the various wire harness connectors, splices and grounds.However, conventional diagnostic methods may not prove conclusive in the diagnosis of the Sentry Key REmoteEntry Module (SKREEM), the ElectroMechanical Instrument Cluster (EMIC), the Powertrain Control Module (PCM),the Programmable Communications Interface (PCI) data bus, or the electronic message inputs used to provide theelectronic features of the SKIS. The most reliable, efficient, and accurate means to diagnose the SKREEM, theEMIC, the PCM, the CAN data bus, and the electronic message inputs for the SKIS requires the use of a diagnosticscan tool. Refer to the appropriate diagnostic informatio
4/27/2015 2:40:35 PM •
2006 Jeep...
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Answered
on Apr 27, 2015