2003 JEEP GRAND CHEROKEE Code

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JEEP GRAND CHEROKEE 2003 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 2003 WJ / 2.G Workshop Manual an associated limp in will take two trips to illumi-
nate the MIL.
Refer to the Diagnostic Trouble Codes Description
Charts in this section and the appropriate Power-
train Diagnostic Procedure Manual

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JEEP GRAND CHEROKEE 2003 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

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual Non-emissions related failures have no priority.
One trip failures of two trip faults have low priority.
Two trip failures or matured faults have higher pri-
ority. One and two trip failures of fuel s

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual INSTALLATION - FIXED ORIFICE FITTING
When installing fixed orifice fitting, be sure loca-
tions of fixed orifice fitting and air inlet fitting (Fig.
9) have not been inadvertently exchanged. The fixed

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual Check the vapor/vacuum lines at the LDP, LDP
filter and EVAP canister purge solenoid for
damage or leaks. If a leak is present, a Diagnos-
tic Trouble Code (DTC) may be set.
(2) Connect electrical con

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JEEP GRAND CHEROKEE 2003 WJ / 2.G Workshop Manual REMOVAL
The EVAP canister is located behind the left-rear
wheel (Fig. 24). It is attached to a two-piece support
bracket (Fig. 25).
(1) Remove rear bumper facia. Refer to Rear Facia
Removal / Installa
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