Principles of Operation

PRINCIPLES OF OPERATION

NOTE: When installing a new lighting control module (LCM), it must be configured for this feature, if originally equipped (standard for Canadian vehicles). Refer to Information Bus (Module Communications Network).

The LCM controls the DRL by using various inputs to determine whether or not the DRL should be illuminated. These inputs include:
- Ignition switch position
- Headlamp switch position
- Headlamps on or off
- Transmission gear selection