Description & Operation

WARNING: Vehicles are equipped with Supplemental Inflatable Restraint (SIR) system. Before attempting ANY repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article.

Major components of the cruise control system are cruise control switches, servo, horn relay, Brake Pedal Position (BPP) switch, Clutch Pedal Position (CPP) switch, deactivator (brake pressure) switch, ABS control module, Generic Electronic Module (GEM), and related wiring. See Fig 1 . This system does not require engine vacuum. An electronic servo controls throttle.

The system is operational only at speeds greater than 30 MPH. The system is activated when ON/OFF switch is switched on and SET/ACCEL button is pressed and released. Vehicle will maintain set speed until new speed is set, brake pedal is pressed, clutch pedal is pressed, or ON/OFF switch is switched off. If system has been deactivated by pressing brake or clutch pedal, set speed can be regained by pressing and releasing RESUME button. When brake or clutch pedal is pressed, a signal from switch is sent to the servo to deactivate the system. A deactivator (brake pressure) switch acts as a redundant brake signal.

Fig 1: Locating Electrical Components

Courtesy of MAZDA MOTORS CORP.