Cruise Control Indicator Lamp: Description and Operation

CIRCUIT OPERATION
The cruise lamp is used to indicate to the operator when the vehicle speed control is turned ON. The signal to illuminate the lamp is carried over the CCD Bus from the Body Control Module (BCM).

The BCM receives information on vehicle speed control ON from the Powertrain Control Module (PCM) over the CCD Bus. This lamp also is illuminated, for a few seconds, when the ignition switch is moved from the OFF to the RUN position as a bulb check. The bulb check operation is controlled by the PCM.