Principles of Operation

PRINCIPLES OF OPERATION

NOTE: The smart junction box (SJB) is also known as the generic electronic module (GEM).

Fusion, Milan
The DRL feature operates the low beam headlamps at a reduced intensity when the ignition switch is in the RUN position, the headlamps are not on from any other input, and the transaxle is not in PARK (P) (automatic transaxle) or the parking brake is released (manual transaxle).

The SJB 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
- Parking brake status (manual transaxle)
- Transaxle gear selection (automatic transaxle)

MKZ
The DRL feature operates the front turn lamps (on solidly, not flashing) when the ignition switch is in the RUN position, the headlamps are not on from any other input, and the transaxle is not in PARK (P).

The SJB 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
- Transaxle gear selection