What is this? Pictures and Fuse Box
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
That's 'IOD', It stands for Ignition Off Draw. There are a few circuits in your Jeep that use a very small amount of current to keep memory alive, etc.
Here' some circuits powered via the IOD fuse:
.
.