Cruise Control Module

For diesel engine applications, the PCM takes the place of the cruise control module.

Typical mode of operation is as follows:
The cruise "ON/OFF" switch must be in the "ON" position. When the "SET" button is activated, the PCM Stores the last vehicle speed input from the VSSB into a memory location. The PCM then sends signals to the electronic throttle control system. The PCM controls the electronic throttle to maintain the vehicle speed stored in memory. The electronic throttle is a servo system which sends position information to the PCM. The PCM will increase or decrease throttle position depending on the load (going up or down a hill) to maintain vehicle speed. If the cruise "ON/OFF" switch is switched off or the brake is applied, the PCM will turn off the cruise control system.