Cruise Control System

GASOLINE ENGINES
The cruise control system on gasoline engines consists of the following components:
^ The Vehicle Control Module (VCM)
^ The cruise control module
^ The multifunction lever
^ The brake release switch

The cruise control module contains a stepper motor that is used to change throttle position. The cruise control module receives commands from the multifunction lever. The cruise control module receives vehicle speed from the VCM. The cruise control module controls speed based on these input commands and the vehicle speed.

DIESEL ENGINES
The cruise control system on the diesel engines consists of the following components:
^ The Powertrain Control Module (PCM)
^ The electronic throttle control system
^ The Vehicle Speed Sensor Buffer (VSSB)
^ The multifunction lever
^ The brake release switch

The PCM receives commands from the multifunction lever. The PCM also receives vehicle speed information from the VSSB. The PCM sends information to the electronic throttle control system in order to control vehicle speed based on these input commands and vehicle speed.