Jeep Cherokee (XJ): Special tools
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Overhead console systems > Special tools
COMPASS
Overhead console
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the two screws located forward of the
display module that secure the overhead console to
the upper windshield o ...
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Other materials:
Powertrain control module (PCM)
DESCRIPTION
The Powertrain Control Module (PCM) is located
in the engine compartment (Fig. 1). The PCM is
referred to as JTEC.
OPERATION
The PCM operates the fuel system. The PCM is a
pre-programmed, triple microprocessor digital computer.
It regulates ignition timing, air-fuel ratio,
emis ...