GF80.20-P-2003RT Headlamp Switch-Off Delay, Function

GF80.20-P-2003RT Headlamp Switch-off Delay, Function

MODEL 251.0 /1 up to Model Year 8

Function
The headlamp switch-off delay serves to illuminate the area surrounding the vehicle after exiting the vehicle.
The time interval can be adjusted in the instrument cluster (A1).

The time interval can set in 15 s increments from t = 0 s to t = 60 s

Function requirements:
- Headlamp switch-off delay activated via instrument cluster
- Rain/light sensor (B38/2) signals "Darkness"
- Rotary light switch (S1) in "AUTO" position (with United States of America and Canada)

Function sequence
When changing from circuit 61 ON to circuit 15 OFF, the headlamp switch-off delay function is activated for t = 60 s, if the function prerequisites are fulfilled.
This time is independent from the time interval set in the instrument cluster.
When a door or the rear-end door is opened, the time for the headlamp switch-off delay is restarted. This applies each time a door is opened within the expiration time. When the last door is closed, the time interval selected in the instrument cluster is activated.
If the headlamp switch-off delay is active, the front SAM control unit (N10) transmits the corresponding signal to the instrument cluster, whereupon the warning buzzer (A1h1) and circuit 58d are suppressed.

When the parking lamp or the low beam is only activated due to the rotary light switch in the background of the headlamp switch-off delay, the warning buzzer remains activated.

The headlamp switch-off delay activates the following lamps:
- Left standing and parking lamp (E6/13)
- Right standing and parking lamp (E6/14)
- Left front fog lamp (E5/1)
- Right fog lamp (E5/2)
- Left front side-marker lamp United States of America (E6/1) (with United States of America and Canada)
- Right front side-marker lamp United States of America (E6/2) (with United States of America and Canada)
- Left stop lamp, taillamp, parking lamp, and side-marker lamp (E3e9)
- Right stop lamp, taillamp, parking lamp and side-marker lamp (E4e9)
- Left tailgate license plate lamp (E19/3)
- Right tailgate license plate lamp (E19/4)

Interrupt function
When the ignition is switched on and off, the headlamp switch-off delay function is interrupted until the next change from circuit 61 ON to circuit 15 OFF.

When the anti-theft alarm system (with code (551) Anti-theft alarm system (ATA)) is triggered, the headlamp switch-off delay is also interrupted.

Deactivate function
When the time interval is set to "0 s" in the instrument cluster the headlamp switch-off delay feature is deactivated.