Turn signal lamp actuation function - GF82.10-P-3008A

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

Fig 1: Turn Signal Lamp Actuation Function Diagram

Operational sequence turn indicators 

1. Basic requirements:
   • Ignition on (terminal 15)
2. The combination switch lever (S4) is set to "Left turn"  or "Right turn"  position.
3. The steering column module (N80) registers the combination switch's turn signal position and sends the "Left turn"  or "Right turn"  signals over the databus (1) to the corresponding control module for actuation of the turn signal lamps.

1. 4.1 Left turn:
   • The left front SAM control module (N10/6) actuates the left turn signal lamp (E1e2) in the left-hand lamp unit.
   • The left front door control module (N69/1) actuates the left exterior mirror turn signal (E6/5).
   • The rear SAM control module (N10/8) actuates the turn signal lamp (E3e1) in the left-hand tail lamp.
2. 4.2 Right turn:
   • The right front SAM control module (N10/7) actuates the turn signal lamp (E2e5) in the right-hand lamp unit.
   • The right front door control module (N69/2) actuates the right exterior mirror turn signal (E6/6).
   • The rear SAM control module (N10/8) actuates the turn signal lamp (E4e1) in the right-hand tail lamp.
3. 5 The instrument cluster (A1) registers the turn signal procedure by optical and acoustical means, by actuating the indicator lamps, left turn or right turn (A1e1 or A1e2) and the audible turn signal indicator (A1h2).
4. 6 The upper control panel control module (N72/1) with the hazard warning indicator switch blocks the hazard warning indicator function, because the "Left turn"  or "Right turn"  databus signal recognizes that turn indicator lamps have priority over hazard warning indicators.
5. 7 For trailer couplings the "Left turn"  or "Right turn"  signal is sent over the databus (1) to the trailer recognition control module (N28/1) and the flasher frequency current for the trailer's left or right-hand turn signal lamp is switched to the trailer hitch socket, 13-pin (X58).

   

   • The turn signal lamp's flashing procedure is ended self-acting by countersteering or manually by returning the combination switch lever to its original position.
   • If a turn signal lamp malfunctions the flashing frequency is doubled for the indicator lamp turn left or turn right in the instrument cluster. The frequency of the turn signal lamps remains unchanged.

Operational sequence turn signal lamp touch control 

• 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 the touch control function, the combination switch lever need only be moved briefly (less than 500 ms) into the desired turn signal lamp position. Without the lever engaging into place this procedure will activate 3 turn signal cycles.
• Touch control is interrupted by activating the hazard warning light function, or by pushing the combination switch in the opposite direction.