Turn signal indicator actuation, function - GF82.10-P-3008T

MODEL 211.0 /2 up to 31.5.06 except CODE (494) USA version except CODE (498) Japan version

MODEL 211.0 /2 up to 30.6.06 with CODE (494) USA version with CODE (498) Japan version

Fig 1: Networking Of Turn Signal Indicator Actuation Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Networking of components, shown on model 211.0

Function requirements:

Circuit 5R On
Combination switch (S4) in "left turn signal indicator" or "right turn signal indicator" position

Function

The steering column module (N80) detects when the combination switch (S4) is in the turn signal position and sends the "left turn signal indicator" signal or "right turn signal indicator" signal via CAN class B to the rear SAM control unit with fuse and relay module (N10/2) to actuate the turn signal lamps.

The rear SAM control unit with fuse and relay module (N10/2) is the main control unit for all turn signal indicator functions and forwards the signals to the corresponding control units.

Left turn signal

The driver-side SAM control unit with fuse and relay module (N10/1) actuates the left turn signal lamp (E1e5).

The left front door control unit (N69/1) actuates the left outside mirror turn signal lamp (E6/5).

The rear SAM control unit with fuse and relay module (N10/2) actuates the outer left turn signal lamp (E3e1) and inner left turn signal lamp (E3e7) (model 211.0 only) in the left taillamp (E3).

Right turn signal

The passenger-side SAM control unit (N10/11) actuates the right turn signal lamp (E2e5).

The right front door control unit (N69/2) actuates the right outside mirror turn signal lamp (E6/6).

The rear SAM control unit with fuse and relay module (N10/2) actuates the outer right turn signal lamp (E4e1) and inner right turn signal lamp (E4e7) (model 211.0 only) in the right taillamp (E4).

The following indicator lamps are activated for display in the instrument cluster (A1).

left turn signal indicator lamp (A1e1)
right turn signal indicator lamp (A1e2)

In addition, the audible indicator is activated.

Acoustic turn signal indicator (A1h2)

The right turn signal is automatically terminated by resetting when counter steering or by manual reset of the combination switch (S4).

If a turn signal lamp (E1e5, E2e5, E3e1, E3e7, E4e1, E4e7) or a turn signal lamp (E6/5, E6/6) fails, the flashing frequency of the corresponding left turn signal indicator lamp (A1e1) or right turn signal indicator lamp (A1e2) in the instrument cluster (A1) doubles. The flashing frequency remains unchanged.

Turn signal lamp touch control, function sequence

The operational sequence for the turn signal lamp touch control is the same, in relation to the signal flow, as that for the turn signal indicator. The difference lies in the actuation and ending of the turn signal procedure only.

For one-touch turn signaling, the combination switch (S4) must only be operated briefly (for approx. 0.5 ms) into the desired turn signal indicator position. Without the combination switch (S4) engaging into place in the turn signal indicator position, a sequence of three turn-signal cycles is triggered.

One-touch turn signaling is interrupted by activating the hazard warning lamp function or by operating the combination switch (S4) in the opposite direction.

For vehicles with code (550) Trailer hitch, the signal "left turn signal indicator On" or "right turn signal indicator On" is transmitted from the rear SAM control unit with fuse and relay module (N10/2) to the trailer connection unit [AAG] control unit (N28/1), which applies the signal "left turn signal indicator On" or "right turn signal indicator On" to the trailer hitch socket (13-pin) (X58).

Driver-side SAM control unit with fuse and relay module, location/task/design		GF54.21-P-4109T
Front passenger-side SAM control unit with fuse and relay module, location/task/design		GF54.21-P-4111T
Rear SAM control unit with fuse and relay module, location/task	Model 211.0	GF54.21-P-4130T
	Model 211.2	GF54.21-P-4130TA
Electronic ignition switch control unit, location/task		GF80.57-P-4120T
Steering column module, location/task		GF54.21-P-4125T
Driver front door control unit, location/task		GF72.29-P-4115T
Passenger-side front door control unit, location/task		GF72.29-P-4116T
Instrument cluster (IC), location / task		GF54.30-P-3039T
Trailer recognition control unit, location/task	With code (550) Trailer hitch	GF82.10-P-2106T