Jeep Cherokee (XJ): Diagnosis and testing
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Instrument panel systems > Diagnosis and testing
- Instrument cluster
- Instrument panel cigar lighter. Cigar lighter relay. Instrument panel power outlet
Instrument panel system
DESCRIPTION
The instrument panel serves as the command center
of the vehicle, which necessarily makes it a very
complex unit. The instrument panel is designed to
house the ...
If all of the gauges and/or indicator lamps are inoperative,
perform the Preliminary Diagnosis. If an
individual gauge or Chrysler Collision Detection
(CCD) data bus message-controlled indicator la ...
Other materials:
Modes of operation
OPERATION
As input signals to the Powertrain Control Module
(PCM) change, the PCM adjusts its response to the
output devices. For example, the PCM must calculate
different injector pulse width and ignition timing for
idle than it does for wide open throttle (WOT).
The PCM will operate in two ...