Jeep Cherokee (XJ): Diagnosis and testing

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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 ...

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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 ...

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CCD bus (+/-) circuits-pcm outputs. Data link connector-pcm input and output. Fuel injectors-pcm output
CCD bus (+/-) circuits-pcm outputs OPERATION The Powertrain Control Module (PCM) sends certain output signals through the CCD bus circuits. These signals are used to control certain instrument panel located items and to determine certain identification numbers. Refer to Group 8E, Instrumen ...