Rear fog lamp actuation function - GF82.10-P-3007A

MODELS 215.###, 220.02# /06# /07# /12# /16# /17# 1# 

Fig 1: Rear Fog Lamp Actuation Function Diagram

Functional sequence 

1. Basic requirement:
   • The exterior lamp switch module (S1) is set to the "Driving light ON" or "Standing light ON" position:
     • the low beam (E1e2 and E2e2) or the standing and parking lamp (E1e3 and E2e3) in the lamp assemblies

       and

     • the standing and parking lamps (E3e2 and E4e2) in the tail lamps are switched on
   • The exterior lamp switch (S1) is pulled out to the 1st notched position Fog lamp ON":
     • the fog lamps (E1e4 and E2e4) in the left and right-hand lamp units are switched on.
2. The exterior lamp switch (S1) is pulled out to the 2nd notched position "Fog lamps ON"  .
3. Alongside the exterior lamp switch's standing lamp or low beam lights and fog lamp positions the left front SAM control module (N10/6) also records the "Fog lamp ON"  signal.
4. The left front SAM control module sends the "Fog lamp ON" signal over the databus (1) to the rear SAM control module (N10/8).
5. The rear SAM control module (N10/8) actuates the "fog lamp" in the left-hand tail lamp.
6. If a trailer coupling is present the "Fog lamp ON"  signal is also sent over the databus (1) to the trailer recognition control module (N28/1).
7. The trailer recognition control module (N28/1) verifies whether a trailer is coupled, if this is so it sends a signal over the databus authorizing the rear SAM control module (N10/8) to switch off the fog tail lamp, while simultaneously supplying power to the AHV, 13-pin (X58) trailer hitch socket's fog lamp.