How do I disable the security mechanism in 1991 jeep cherokee?

My jeep doesn't start because the security system thinks there is a breach of security. I tried using the key in the driver's door and passenger door but it doesn't help. Is there a way to just reset it or completely disable the security system?|||Yes take ( tow) it to the dealer and have the system shut off with the DRBII if it is a factory system, if its aftermarket, no idea