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

MODEL 211.0 /2 as of 1.6.06 except CODE (494) USA version except CODE (498) Japan version

MODEL 211.0 /2 as of 1.7.06 with CODE (494) USA version with CODE (498) Japan version

Fig 1: Networking Of Backup Lamp Actuation Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function requirements

Circuit 15 ON

Function

On vehicles with transmission 716, the backup lamp switch is read in directly by the front passenger-side SAM control unit, which then transmits the "Reverse gear engaged" message over CAN-B to the central gateway control unit.

On vehicles with transmission 722.6, the electronic selector lever module control unit notifies the central gateway control unit over CAN-C that drive position "R" has been engaged.

On vehicles with transmission 722.9, the electronic selector lever module control unit sends the "R drive position" request to the control unit for the fully integrated transmission control unit, which - once it is engaged - forwards the "R drive position" message over CAN-C to the central gateway control unit.

The central gateway control unit transmits the "Reverse gear" or "R drive position engaged" message over CAN-B to the following control units:

Rear SAM control unit
Rear-end door control unit
Trailer connection unit [AAG] control unit

Actuation

With model 211.0, the backup lamps are actuated by the rear SAM control unit, with model 211.2 by the rear-end door control unit.

For vehicles with code (550) Trailer hitch, the trailer connection unit [AAG] control unit actuates the AHV socket accordingly.

Rear SAM control unit with fuse and relay module, location/task	N10/2 Model 211.0	GF54.21-P-4130T
Front passenger-side SAM control unit with fuse and relay module, location/task/design	N10/11	GF54.21-P-4111T
Electronic selector lever module control unit, location/task/design	N15/5 Transmission 722.6	GF27.19-P-5138P
Electronic selector lever module control unit, location/task	N15/5 Transmission 722.9	GF27.19-P-5140NT
Trailer recognition control unit, location/task	N28/1 With code (550) Trailer hitch	GF82.10-P-2106T
Central gateway control unit, location/task	N93	GF00.19-P-4100T
Rear-end door control unit, location/task	N111 Model 211.2	GF68.80-P-4002TA
VGS control unit, location/task	Y3/8n4 Transmission 722.9	GF27.19-P-4013N