Dodge 2000 DURANGO Service Manual page 251

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DESCRIPTION AND OPERATION (Continued)
Fig. 4 Battery Tray
1 – SCREW
2 – SENSOR
3 – YOKE
4 – SCREW
5 – SUPPORT
6 – SCREW
7 – WHEELHOUSE INNER PANEL
8 – TRAY
9 – SCREW
of the tray, which support the forward end of the
Power Distribution Center (PDC). Refer to Power
Distribution Center in the index of this service
manual for the location of more information on the
PDC mounting.
OPERATION
The battery tray provides a mounting location and
support for the vehicle battery. The battery tray also
provides anchor points for the battery hold down
hardware. The battery tray and the battery hold
down hardware combine to secure and stabilize the
battery in the engine compartment, which prevents
battery movement during vehicle operation. Unre-
strained battery movement during vehicle operation
can result in damage to the vehicle, the battery or
both.
DIAGNOSIS AND TESTING
BATTERY
DIAGNOSIS
The battery, starting system and charging system
in the vehicle operate with one another, and must be
tested as a complete system. In order for the engine
to start and the battery to charge properly, all of the
components that are used in these systems must per-
form within specifications. It is important that the
battery, starting system and charging system be thor-
oughly tested and inspected any time a battery needs
to be charged or replaced. The cause of abnormal dis-
charge, overcharging or early battery failure must be
diagnosed and corrected before a battery is replaced
and before a vehicle is returned to service. The ser-
vice information for these systems has been sepa-
rated within this service manual to make it easier to
locate the specific information you are seeking. How-
ever, when attempting to diagnose any of these sys-
tems, it is important
interdependency in mind.
The diagnostic procedures used for the battery,
starting system and charging system include the
most basic conventional diagnostic methods, to the
more sophisticated On-Board Diagnostics (OBD) built
into the Powertrain Control Module (PCM). Use of an
induction-type milliampere ammeter, a volt/ohmme-
ter, a battery charger, a carbon pile rheostat (load
tester) and a 12-volt test lamp may be required. All
OBD-sensed systems are monitored by the PCM.
Each monitored circuit is assigned a Diagnostic Trou-
ble Code (DTC). The PCM will store a DTC in elec-
tronic memory for any failure it detects. Refer to
Charging System, On-Board Diagnostic Test in
the index of this service manual for the location of
the proper on-board diagnostic test procedures.
The battery must be completely charged and the
top, posts and terminal clamps should be properly
cleaned and inspected before any diagnostic proce-
dures are performed. Refer to Battery in the index
of this service manual for the location of the proper
battery cleaning and inspection procedures. Refer to
Battery Charging in the index of this service man-
ual for the location of the proper battery charging
procedures.
BATTERY 8A - 5
that you keep their