Cruise Cancel

The Cruise Cancel Switch operates in the following manner. The Body Control Module (BCM) reads the cruise control cancel switch and determines when the switch is pressed. The BCM transmits a Class 2 serial data message to the Powertrain Control Module (PCM) to disable the cruise.

The brake switches operate in the following manner. The Electronic Brake Control Module (EBCM) reads the brake fluid level switch. When the switch closes due to low brake fluid, the EBCM transmits a Class 2 serial data message to the PCM indicating the status of the brake fluid switch.

The park brake switch is read by the BCM. When the park brake is activated, the BCM transmits a Class 2 serial data message to the PCM indicating the status of the park brake switch. The PCM takes both brake messages and forces the inhibit circuit to disable the cruise. In the event of a loss of Class 2 serial data, the PCM forces the inhibit circuit to the high state disabling the cruise.