C 1500 Truck 2WD V8-6.5L DSL Turbo VIN S (1997)
A/C Signal: Testing and Inspection
Circuit Description
The Cruise control multi function lever is wired directly to the PCM. The cruise on/off, set/coast and resume/accel signals are inputs to the fuel control
portion of the PCM. These inputs allow the PCM to control and hold a requested speed. The cruise can be disengaged at anytime time by applying the
brakes. This input is sent to the PCM by the Cruise Control Brake Switch. If the cruise is inoperative and no Cruise Control or Brake Switch DTC(s) are
stored, check for the following conditions:
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Malfunctioning cruise multi function switch/wiring harness (opens or malfunctioning connections).
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The clutch pedal switch stuck in the open position.
Other conditions that will not allow the Cruise Control to engage that are not the fault of the cruise system.
