Fog/Driving Lamp: Description and Operation

Component Identification:

Fog lamp switch-on sequence
Function prerequisites:
- Rotary light switch (S1) in parking light or low beam position
- Rotary light switch pulled out to first catch position

1 The position of the rotary light switch (S1) is read in by the left front SAM control module (N10/6) (1).
2 The left SAM control module (N10/6) sends a signal (2) to the instrument cluster (A1) and the right front SAM control module (N10/7) via the data bus (CAN).
3 The left front SAM control module (N10/6) switches on the left fog lamp (E1e4).
4 The right front SAM control module (N10/7) switches on the right fog lamp (E2e4).

Function sequence for switching on rear fog lamp
Function prerequisites:
- Rotary light switch (S1) in parking light or low beam position
- Fog lamps switched on
- Rotary light switch pulled out to second catch position

1 The position of the rotary light switch (S1) is read in by the left front SAM control module (N10/6) (1)
2 The left front SAM control module (N10/6) sends a signal (3) to the instrument cluster (A1), the rear SAM control module (N10/8) and the trailer recognition control module (N28/1) via the data bus (CAN).
3 The rear SAM control module switches on the left rear fog lamp (E2e5), except (J).


NOTE: On national version (J) vehicles the right rear fog lamp (E4e5) is switched on.


4 The trailer recognition control module (N28/1) actuates the trailer hitch socket (13-pin, X58).