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

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual GRAND CHEROKEE 2002 WJ / 2.G JEEP JEEP https://www.carmanualsonline.info/img/16/7175/w960_7175-0.png JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The high pressure relief valve vents only enough
refrigerant to reduce the system pressure, and then
re-seats itself. The majority of the refrigerant is con-
served in the system. If the valve vents r

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual ING & AIR CONDITIONING/CONTROLS/A/C
PRESSURE TRANSDUCER - INSTALLATION).
(9) Evacuate the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual REFRIGERANT
DESCRIPTION
The refrigerant used in this air conditioning sys-
tem is a HydroFluoroCarbon (HFC), type R-134a.
Unlike R-12, which is a ChloroFluoroCarbon (CFC),
R-134a refrigerant does not

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual EMISSIONS CONTROL
TABLE OF CONTENTS
page page
EMISSIONS CONTROL
DESCRIPTION
DESCRIPTION - EMISSION CONTROL
SYSTEM.............................1
DESCRIPTION - STATE DISPLAY TEST
MODE...................

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual DESCRIPTION - STATE DISPLAY TEST MODE
The switch inputs to the Powertrain Control Mod-
ule (PCM) have two recognized states; HIGH and
LOW. For this reason, the PCM cannot recognize the
difference betw

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (M)Malfunction Indicator Lamp (MIL) illuminated during engine operation if this DTC was recorded
(depending if required by CARB and/or EPA). MIL is displayed as an engine icon on instrument panel.
(G)

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (M)Malfunction Indicator Lamp (MIL) illuminated during engine operation if this DTC was recorded
(depending if required by CARB and/or EPA). MIL is displayed as an engine icon on instrument panel.
(G)

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual DESCRIPTION - TASK MANAGER
The PCM is responsible for efficiently coordinating
the operation of all the emissions-related compo-
nents. The PCM is also responsible for determining if
the diagnostic sy

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual and deteriorate engine performance, driveability and
fuel economy.
The catalyst monitor uses dual oxygen sensors
(O2Ss) to monitor the efficiency of the converter. The
dual O2Ss sensor strategy is b

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual OPERATION - TASK MANAGER
The Task Manager determines which tests happen
when and which functions occur when. Many of the
diagnostic steps required by OBD II must be per-
formed under specific operatin