2002 JEEP GRAND CHEROKEE width

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Page 258 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (2) Insert block heater assembly with element loop
pointing at twelve oclock (Fig. 19).
(3) With block heater fully seated, tighten center
screw to 2 N´m (17 in. lbs.) torque.
(4) Refill cooling sys

Page 264 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (6) Start the engine and operate at 2400 rpm.
Within ten minutes the air temperature (indicated on
the dial thermometer) should be up to 93É C (200É F).
Fan driveengagementshould have started to occ

Page 315 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (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

Page 321 of 2199

JEEP GRAND CHEROKEE 2002 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

Page 322 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual ²The PCM pre-positions the idle air control (IAC)
motor.
²The PCM determines atmospheric air pressure
from the MAP sensor input to determine basic fuel
strategy.
²The PCM monitors the engine coolan

Page 323 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual ²The PCM operates the A/C compressor clutch
through the clutch relay. This happens if A/C has
been selected by the vehicle operator and requested
by the A/C thermostat.
CRUISE MODE
When the engine is

Page 325 of 2199

JEEP GRAND CHEROKEE 2002 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).

Page 421 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The VFD is diagnosed using the EMIC self-diag-
nostic actuator test. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - DIAGNOSIS AND
TESTING). Proper testing of the PCI data bus and
the data bus message
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