Cruise Control Module: Description and Operation

The Speed Control Control Module (SCCM), located behind the fascia, adjacent to the steering column, provides system control and an interface to external input signals from the instrument pack, gear selector module, traction control system, control switches, and foot pedal switches. The set speed value is retained in SCCM memory and continuously compared to actual vehicle speed. Adjustments are made, as necessary, to maintain set speed by control of the vacuum pump and control valve.

Speed Control System Component Locations, Fig.1:

1. Speed control switches
2. Throttle linkage and bellows
3. Vacuum dump valve
4. Vacuum pump and control valve unit
5. Speed control control module (SCCM)
6. Brake switches
7. Clutch switch (where installed)