It allows for the required power to keep the memory working in the computers and radio, to keep any clocks accurate, etc......
Dead battery, Alternator not charging, Ignition off draw draining battery,.............
Defective ignition switch.
The 1991 Blazer has a current draw causing the wire to burn. You will need to trace the wiring out to find what is drawing too much current.
The ignition module could cut off the fuel supply. The oxygen censor will also cut off the power from an automobile as well.
A locksmith may be able to remove the broke key and make a new one. Or just replace the ignition.
the ignition is right next to the steering wheel
Ignition off draw.
Ignition off draw
Ignition off draw or IOD commonly provides memory power to the body control module. When a car has been parked for a long time, it is pulled to start the car.
The ignition off draw fuse is located in the under hood fuse box. It is labeled IOD and will be inside a plastic holder.The ignition off draw fuse is located in the under hood fuse box. It is labeled IOD and will be inside a plastic holder.
It provides power for radio and other computers memory.
You have an electrical short.
Input Output Device. On a Chrysler product, IOD is for Ignition Off Draw.
Should be under .035 amp
Dead battery, Alternator not charging, Ignition off draw draining battery,.............
Ignition off draw fuse/circuit It is used for dome lights, radio memory, etc.
The spec for ignition off draw (all components off, key removed) is .035 amps or less. It can take 5 minutes for the computers to "time out" and go to "sleep".