2003 JEEP GRAND CHEROKEE Battery cable

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Page 319 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual DIAGNOSIS AND TESTING - DOOR MODULE
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOS

Page 320 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual Programmable Communications Interface (PCI) data
bus network.
For diagnosis of the HSM, MHSM or the PCI data
bus, a DRBIIItscan tool and the proper Diagnostic
Procedures manual are recommended. The HS

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual INSTALLATION
(1) Install the MHSM,HSM into the bracket.
(2) Position the heated seat module and mounting
bracket onto the power seat track.
(3) Reconnect the power seat wiring harness con-
nectors to

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual ²Malfunction indicator lamp (Check engine lamp).
Driven through J1850 circuits.
²Overdrive indicator lamp (if equipped). Driven
through J1850 circuits.
²Oxygen sensor heater relays (if equipped).

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (2) If equipped, remove Transmission Control Mod-
ule (TCM).
(3) Remove coolant reserve/overflow tank.
(4) Remove cover over electrical connectors. Cover
snaps onto PCM.
(5) Carefully unplug three 32

Page 327 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual sponder through a tuned antenna ring integral to the
SKIM housing. If this antenna ring is not mounted
properly around the ignition lock cylinder housing,
communication problems between the SKIM and t

Page 328 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual (3) Disconnect the instrument panel wire harness
connector from the SKIM connector.
(4) Remove the screw that secures the SKIM to
the bottom of the steering column housing (Fig. 16).
(5) Disengage the

Page 332 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual ENGINE SYSTEMS
TABLE OF CONTENTS
page page
BATTERY SYSTEM......................... 1
CHARGING.............................. 24STARTING............................... 29
BATTERY SYSTEM
TABLE OF CONTENT