Connectors JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide

JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide GRAND CHEROKEE 2003 WJ / 2.G JEEP JEEP https://www.carmanualsonline.info/img/16/7175/w960_7175-0.png JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide

Page 301 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide (2) Press firmly and evenly on the remote radio
switch until each of the switch snap features is fully
engaged in the mounting hole of the steering wheel
rear trim cover.
(3) Reconnect the steering wh

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide DIAGNOSIS AND TESTING - SPEAKER
Any diagnosis of the Audio system should
begin with the use of the DRB IIItdiagnostic
tool. For information on the use of the DRB
IIIt, refer to the appropriate Diagnos

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide at the enable signal to amplifier circuit cavity of the
power amplifier wire harness connector. If OK, go to
Step 12. If not OK, repair the open enable signal to
amplifier circuit to the radio receive

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide INSTALLATION
(1) Install the module on the mounting pins in the
vehicle.
(2) Reconnect the electrical connector.
(3) Install the two mounting clips for the module
(Fig. 1).
(4) Install the adjustable

Page 314 of 2199

JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide inputs to or receive outputs from the BCM must also
be checked. The most reliable, efficient, and accurate
means to diagnose the BCM, the PCI data bus net-
work, and the electronic modules that provid

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide (5) Connect the two instrument panel wire harness
connectors to the BCM.
(6) Reinstall the instrument panel fuse cover to
the bottom of the BCM and JB unit. (Refer to 8 -
ELECTRICAL/POWER DISTRIBUTION

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide 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 User Guide 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).
Â

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide (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 32Â

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JEEP GRAND CHEROKEE 2003 WJ / 2.G User Guide (1) Confirm that the ignition switch is in the On
position.
(2) Ensure that the rear glass heating grid feed
and ground terminals are connected to the glass.
Confirm that the ground wire has continuit
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