Headlamp switch-off delay, function - GF80.20-P-2003GZ
MODEL 164.1/8 up to Model Year 2008
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 be set in increments of of 15 s, 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
and
)
Function sequence
When changing from circuit 61 ON to circuit 15 OFF, the headlamp switch-off delay function is activated for t = 60s, if the function prerequisites are fulfilled. The time is independent of the time interval set on 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 (E1e3)
- Right standing and parking lamp (E2e3)
- Left front fog lamp (E5/1)
- Right fog lamp (E5/2)
- Left rear side-marker lamp (E1e6) (only
- Right rear side-marker lamp (E2e6) (only
- Taillamp and rear fog lamp (E3e2) (on model 164.1)
- Left stop lamp (E3e4) (on model 164.8 without code (849) Spare tire holder/spare tire)
- Taillamp, side-marker lamp, left parking lamp (E3e8) (without code (849) Spare tire holder/spare tire)
- Stop lamp and Taillamp links (E3/5e4) (with code (849) Spare tire holder/spare tire)
- Taillamp and right rear fog lamp (E4e2) (on model 164.1)
- Right stop lamp (E4e4) (on model 164.8 without code (849) Spare tire holder/spare tire)
- Taillamp, side-marker lamp, right parking lamp (E4e8) (without code (849) Spare tire holder/spare tire)
- Stop lamp and right taillamp (E4/5e4) (with code (849) Spare tire holder/spare tire)
- Left license plate lamp, rear-end door (E19/3) (without code (849) Spare tire holder/spare tire)
- Right license plate lamp, rear-end door (E19/4) (without code (849) Spare tire holder/spare tire)
- Left license plate lamp, spare tire carrier (E19/5) (with code (849) Spare tire holder/spare tire)
- Right license plate lamp, spare tire carrier (E19/6) (with code (849) Spare tire holder/spare tire)
Function abort
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.
| Instrument cluster, component description | A1 | GF54.30-P-6000GZ | |
| Rain/light sensor, component description | B38/2 | GF54.21-P-6000GZ | |
| Front SAM control unit, component description | N10 | GF54.21-P-7010GZ | |
| Rotary light switch, component description | S1 | GF82.10-P-4106GZ |