GF26.19-D-2103H | Backup lamp switch, component description | 17.6.11 |
TRANSMISSION 711.6 in MODEL 906.111 /113 /131 /133 /135 /153 /155 /211 /213 /231 /233 /235 /253 /255 /611 /613 /631 /633 /635 /637 /653 /655 /657 /711 /713 /731 /733 /735
TRANSMISSION 711.6 in MODEL 639
D26.19-1145-05
Illustrated on model 906
S16/2 Reversing lamp switch
Location
The backup lamp switch is integrated in the switching unit which is located centrally in the dashboard under the OBF control unit (N72/1).
Function
When reverse gear is engaged the shift lever knob presses the contact pin of the backup lamp switch in the switching unit backwards. The backup lamp switch is designed as a normally open contact, i.e. by operating the contact pin a contact is closed in the backup lamp switch and a voltage drop is produced.
The SAM control unit (N10) detects this voltage drop and places a signal on the interior CAN (CAN B). The left backup lamp (E3e3) and right backup lamp (E4e3) are actuated simultaneously via a discrete line.
On vehicles with code (JW0) Backup warning system (model 906), the backup warning system horn (H3/4) is also activated.