Where is the security module located in a 2001 jeep grand cherokee

SOURCE: 2001 Jeep Grand Cherokee which fuse controls heated seats?

Fuse # 20, located in the Junction Block (interior, drivers side). This is a ten amp fuse.

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Read the information at the above site. The TSB (technical service bulletin) may be of interest to you.

SOURCE: window motor replace 2001 jeep grand cherokee

You need to remove all the skrews from the door. Normaly there is one in the handle of the door, one behind the in door lach handel and one under the bump out for the arm rest on the door. Than you need to take a flat head skrew driver slowly priying the panel off. There are plastic clips on the backside of the panel it is ok if you brake a few.

SOURCE: where is locate the camshaft position sensor on

The camshaft position sensor is located inside the distributor. It is a hall effect swich, simply remove the distributor cap and the rotor and you can lift it out, unplug and replace.
Have fun but beware a bad crankshaft position sensor can cause a false cam sensor code to be set sometimes.
Good luck.

SOURCE: 2001 Jeep grand cherokee motor knock 4.7 motor

First, if the noise is from the upper part of the engine and is more of a tapping than a knock, likely you have a problem in the valvetrain, most often a bad lifter or worn rocker arm. If the noise is low, deep inside, the noise is from a bearing. This is generally accompanied by lower than normal oil pressure. Regardless of the underlying cause, correcting the cause will not stop the knock. To do that correctly, the engine needs to be removed and all crankshaft bearings and the crankshaft itself need to be replaced (crank can sometimes be "undercut" and thicker bearing shells can be used depending upon the amount of wear.) If caught very early, sometimes only one bearing can be replaced in-car, but in 99% of all cases I have ever seen, most will fail again, sometimes more severely if done this way.

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SOURCE: 2001 jeep grand cherokee wont blow air through vents

check the vacume under the hood, mine had come disconnected, I pluged it in and wal la it started working again.