Iod Fuse Description; Operation; Removal; Installation - Chrysler Vehicle User Manual

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IOD FUSE
DESCRIPTION
All vehicles are equipped with an Ignition-Off
Draw (IOD) fuse (Fig. 5) that is removed from its
cavity in the Power Distribution Center (PDC) when
the vehicle is shipped from the factory. Dealer per-
sonnel are to remove the IOD fuse from the storage
location and install it into PDC fuse cavity 15 as part
of the preparation procedures performed just prior to
new vehicle delivery.
Fig. 5 Ignition-Off Draw Fuse
1 - IGNITION-OFF DRAW FUSE
2 - IGNITION-OFF DRAW FUSE STORAGE LOCATION
3 - POWER DISTRIBUTION CENTER
The PDC has a molded plastic cover that can be
unlatched and opened to provide service access to all
of the fuses and relays in the PDC. An integral latch
and hinge tabs are molded into the PDC cover for
easy removal. A fuse layout map is integral to the
underside of the PDC cover to ensure proper fuse
and relay identification. The IOD fuse is a 50 ampere
cartridge-type fuse and, when removed, it is stored in
the empty fuse cavity 11 of the PDC.

OPERATION

The term ignition-off draw identifies a normal con-
dition where power is being drained from the battery
with the ignition switch in the Off position. The IOD
fuse feeds the memory and sleep mode functions for
many of the electronic modules in the vehicle as well
as various other accessories that require battery cur-
rent when the ignition switch is in the Off position,
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including the clock. The only reason the IOD fuse is
removed is to reduce the normal IOD of the vehicle
electrical system during new vehicle transportation
and pre-delivery storage to reduce battery depletion,
while still allowing vehicle operation so that the
vehicle can be loaded, unloaded and moved as needed
by both vehicle transportation company and dealer
personnel.
The IOD fuse is removed from PDC fuse cavity #15
when the vehicle is shipped from the assembly plant.
Dealer personnel must install the IOD fuse when the
vehicle is being prepared for delivery in order to
restore full electrical system operation. Once the
vehicle is prepared for delivery, the IOD function of
this fuse becomes transparent and the fuse that has
been assigned the IOD designation becomes only
another Fused B(+) circuit fuse. The IOD fuse serves
no useful purpose to the dealer technician in the ser-
vice or diagnosis of any vehicle system or condition,
other than the same purpose as that of any other
standard circuit protection device.
The IOD fuse can be used by the vehicle owner as
a convenient means of reducing battery depletion
when a vehicle is to be stored for periods not to
exceed about thirty days. However, it must be
remembered that removing the IOD fuse will not
eliminate IOD, but only reduce this normal condition.
If a vehicle will be stored for more than about thirty
days, the battery negative cable should be discon-
nected to eliminate normal IOD; and, the battery
should be tested and recharged at regular intervals
during the vehicle storage period to prevent the bat-
tery from becoming discharged or damaged.

REMOVAL

The Ignition-Off Draw (IOD) fuse is removed from
Power Distribution Center (PDC) fuse cavity #15
when the vehicle is shipped from the assembly plant.
Dealer personnel must install the IOD fuse when the
vehicle is being prepared for delivery in order to
restore full electrical system operation.
(1) Turn the ignition switch to the Off position.
(2) Unlatch and open the cover from the PDC.
(3) Remove the IOD fuse from fuse cavity #15 of
the PDC.
(4) Store the removed IOD fuse by inserting the
terminal blades of the fuse into the empty fuse cavity
#11 of the PDC.
(5) Close and latch the cover onto the PDC.

INSTALLATION

The Ignition-Off Draw (IOD) fuse is removed from
Power Distribution Center (PDC) fuse cavity #15
when the vehicle is shipped from the assembly plant.
Dealer personnel must install the IOD fuse when the
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