2002 JEEP GRAND CHEROKEE dtc

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual STARTING
TABLE OF CONTENTS
page page
STARTING
DESCRIPTION.........................29
OPERATION...........................30
DIAGNOSIS AND TESTING - STARTING
SYSTEM............................30
SPECIF

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual OPERATION
The starting system components form two separate
circuits. A high-amperage feed circuit that feeds the
starter motor between 150 and 350 amperes, and a
low-amperage control circuit that oper

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The ASD relay will be shut±down, meaning the
12±volt power supply to the ASD relay will be de-ac-
tivated by the PCM if:
²the ignition key is left in the ON position. This
is if the engine has not

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual tor will be turned on for the duration of the test to
confirm the functionality of the bulb and the cluster
control circuitry.
²ABS Diagnostic Test- The ABS indicator is
blinked on and off based upon

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual Diagnostic Trouble Code (DTC) for any malfunction it
detects. Each time the airbag indicator fails to illu-
minate due to an open or short in the cluster airbag
indicator circuit, the cluster sends a

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual tor lens is serviced as a unit with the instrument clus-
ter lens, hood and mask unit.
OPERATION
The low fuel indicator gives an indication to the
vehicle operator when the level of fuel in the fuel
t

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual instrument cluster logic circuit, and that logic will
only allow this indicator to operate when the instru-
ment cluster receives a battery current input on the
fused ignition switch output (run-start

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual depending upon the vehicle speed, impact angle,
severity of the impact, and the type of collision.
When the ACM monitors a problem in any of the
airbag system circuits or components, it stores a
fault
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