Backup lamp actuation, function - GF82.10-P-3011CW

MODEL 204.0 /2 up to Model Year 8 

Function requirements: 

• Circuit 15 On

Backup lamp actuation function sequence 

For transmission 722:

The electronic selector lever module control unit (N15/5) reads in the current selector lever position and transmits it to the ME-SFI [ME] control unit (N3/10) (with gasoline engine) or to the CDI control unit (N3/9) (with diesel engine) via drive train CAN.

These route the information to the chassis CAN, where it is read in by the front SAM control unit with fuse and relay module (N10/1).

To avoid any brief lighting up when the selector lever is shifted from position P to D via R, the request is sent by the front SAM control unit with a delay of t = 500 ms.

For transmission 711 or 716

Engaging the reverse gear is recognized by the backup lamp switch (S16/2). This signal is read in directly by the front SAM control unit.

The front SAM control unit transmits the backup lamp request via interior CAN to the rear SAM control unit with fuse and relay module (N10/2) and to the trailer recognition control unit (N28/1) (with code (550) Trailer hitch).

The rear SAM control unit actuates the left backup lamp (E3e3) and the right backup lamp (E4e3).

The trailer recognition control unit actuates the backup lamp on the trailer via the trailer socket (X58) (with code (550) Trailer hitch).

	Electrical function diagram for backup light actuation		PE82.10-P-2058-99FAA
	Rear lamp unit, component description	E3, E4	GF82.10-P-2018CW
	Front SAM control unit with fuse and relay module, component description	N10/1	GF54.21-P-6070CW
	Rear SAM control unit with fuse and relay module, component description	N10/2	GF54.21-P-6030CW
	Trailer recognition control unit component description	N28/1 With code (550) Trailer hitch	GF31.19-P-4050CW
	Electronic ignition switch control unit, component description	N73	GF80.57-P-6001CW