Hazard warning light actuation function - GF82.10-P-3009A

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

Fig 1: Hazard Warning Light Actuation Function Diagram

Operational sequence hazard warning lights 

1. The hazard warning system switch (N72/1s5) is actuated and displays this by flashing on and off.
2. The upper control panel control module (N72/1) has registered the hazard warning system switch's applied position and sends the "Hazard warning lights ON"  signal over the databus (1) to the steering column module (N80).
3. The steering column module (N80) implements the hazard warning system signal and sends a "Turn left and right"  signal over the databus (1) to the corresponding control module and the instrument cluster.
4. The hazard warning system is active:
   • The left front SAM control module (N10/6) actuates the left turn signal (E1e5) and the right front SAM control module (N10/7) activates the right turn signal (E2e5) in the lamp unit.
   • The left front door control module (N69/1) and right front (N69/2) actuate the left exterior mirror turn signal lamp (E6/5) and right exterior mirror (E6/6).
   • The rear SAM control module (N10/8) actuates the turn signal lamps (E3e1 and E4e1) in the left and right-hand tail lamps.
   • The instrument cluster (A1) registers the turn signal procedure by optical and acoustical means, by actuating the turn signal lamps, left turn or right turn (A1e1 or A1e2) and the audible turn signal indicator (A1h2).
5. 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 and right-hand turn signal lamp is switched to the trailer hitch socket, 13-pin (X58).

   If the steering column module (N80) malfunctions the "left turn and right turn" signals are sent directly over the databus from the upper control panel control module (N72/1) to the corresponding control modules.