2002 JEEP GRAND CHEROKEE electrical circuit

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Page 332 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual ENGINE SYSTEMS
TABLE OF CONTENTS
page page
BATTERY SYSTEM......................... 1
CHARGING.............................. 24STARTING............................... 29
BATTERY SYSTEM
TABLE OF CONTENT

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual BATTERY SYSTEM
DESCRIPTION
A single 12-volt battery system is standard factory-
installed equipment on this model. All of the compo-
nents of the battery system are located within the
engine compartme

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual BATTERY SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
THE BATTERY STATE OF
CHARGE CANNOT BE
MAINTAINED.1. The battery has an
incorrect size or rating for
this vehicle.1. Refer to Battery Syste

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual to determine its cranking capacity. A battery that is
fully-charged, but does not pass the load test, is
faulty and must be replaced.
NOTE: Completely discharged batteries may take
several hours to ac

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (2) Disconnect and isolate the battery negative
cable. Connect the battery charger leads. Some bat-
tery chargers are equipped with polarity-sensing cir-
cuitry. This circuitry protects the battery ch

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual Before testing, visually inspect the battery for any
damage (a cracked case or cover, loose posts, etc.)
that would cause the battery to be faulty. In order to
obtain correct indications from the buil

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual STANDARD PROCEDURE - IGNITION-OFF
DRAW TEST
The term Ignition-Off Draw (IOD) identifies a nor-
mal condition where power is being drained from the
battery with the ignition switch in the Off position.

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (5) After about three minutes, the high-amperage
IOD reading on the multi-meter should become very
low or nonexistent, depending upon the electrical
equipment in the vehicle. If the amperage reading
r
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