WikiAnswers does not provide answers for illegal actions, such as bypassing the security system on a motor vehicle.
The factory system can not be bypassed.
You can't, it is part of the body computer.
There never was a 1974 Jeep Grand Cherokee.
You disarm the security by unlocking the doors with a key or remote.
VTSS stands for vehicle theft security system
The factory alarm is reset by unlocking the doors with a key or remote.
You can't
The passenger airbag is on a Weight Detection System. The only way to enable it is to Bypass the weight detector.
All 1998 Jeep vehicles have an airbag.
The valves are not adjustable on a 1998 Jeep.
If the security system on a 1991 Jeep Cherokee will not allow the jeep to start and the key will not turn in the lock, disconnect the battery for a few minutes. Try the key in the lock with the battery disconnected. If it works the first time, reconnect the battery and the system should be reset. If the key does not work in the lock, reconnect the battery and reprogram the key fob.
Jeep doesn't use fuel switches. The fuel system is computer controlled with relays.