Daytime running light actuation, function - GF82.10-P-3005A

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

Fig 1: Daytime Running Light Actuation Function Diagram

Operational sequence 

1. Basic prerequisite:
   • The exterior lamp switch (S1) is set to "0 or driving light" , as of 06.00 also to "AUTO".
   • The "daytime driving light" function can be activated by the instrument cluster, or is preprogrammed ex-factory for certain country versions and cannot be altered.
2. The engine is started and the EIS control module (N73) sends the (1) country-specific code via the data bus to the left front SAM control module (N10/6), right front SAM control module (N10/7) and rear SAM control module (N10/8).
3. The instrument cluster (A1) recognizes via terminal 61 that the engine has started and sends the "Daytime running light ON"  signal via the data bus (1) to the left front SAM control module (N10/6).
4. The left front SAM control module (N10/6), forwards the "Daytime running light ON"  signal via the data bus to the right front SAM control module (N10/7) and rear SAM control module (N10/8) and then simultaneously activates
   • the standing and parking lamp (E1e3) in the right-hand lamp assembly

     and

   • the low beam (E2e2) in the right-hand lamp assembly.
5. The right front (N10/7) and rear (N10/8) SAM control modules receive the "Daytime running light ON"  signal.
6. The right front SAM control module (N10/7) actuates
   • the standing and parking lamp (E2e3) in the right-hand lamp unit,

     and

   • the low beam (E1e2) in the left-hand lamp assembly.
7. The rear SAM control module (N10/8) actuates
   • the standing and parking lamp (E3e2, E3e8, E4e2 and E4e8) in the left and right-hand tail lamps

     and

   • the left and right-hand license-plate lamps (E19/1 and E19/2)

For trailer couplings the "Daytime running light ON" signal is registered via the data bus (1) by the trailer recognition control module (N28/1) and power for the trailer's tail and license plate lamps is switched to the trailer hitch socket, 13-pin (X58).

As of model year 2002 only the low beams are switched on the USA and Canada version. Parking lamps, taillamps and license plates lamps are no longer activated.