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-   -   low voltage batt draw (

vt_xj 09-04-2005 08:19 PM

low voltage batt draw
Hey guys, been lurkin here for a while and have found most of my answers by using the search but this one has me stumped, hope you guys can point me in the right direction. I have a 1993 4 door jeep cherokee,4.0, auto. I have just finished changing the motor, the original motor had 277,000 miles on it and the head gasket went and cracked the head. The motor i put in was from a 1995 cherokee with 101,000 miles.......anyways my question. I have a low voltage batt. draw, I have found that if i pull a fuse under the hood marked "IOD" it stops the draw, it is a 20 amp mini-fuse. I do not know what circut this fuse is for and what i am shuting off and /or if it will harm anything. I do not know if the jeep had this problem before i changed the motor because i bought the jeep with the blown motor. A batt. fully charged will be drawen dead overnight with this fuse installed. Thanks for any help , steve

vt_xj 09-05-2005 07:19 AM


mpwal099 09-05-2005 07:44 AM

perhaps this will help.

Ignition off draw fuse (IOD) / Vehicle storage

The term ignition-off draw identifies a normal condition where power is being drained from the battery with the ignition switch in the Off position. The IOD connector feeds the memory and sleep mode functions for some of the electronic modules in the vehicle as well as various other accessories that require battery current when the ignition switch is in the Off position, including the clock.

vt_xj 09-05-2005 08:17 AM

Thank you mpwal099, My jeep doesant have the radio/clock in it right now and i have checked dome lights and glove box light. Does anyone have a complete list of what this fuse would power, The manual i have says im saposed to have a draw of 25 milli-amps and i have a draw of 4 amps thanks again , steve

vt_xj 09-05-2005 08:27 PM


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