GF82.20-P-2022T Switch Entry/Exit Lamps On/Off, Function

GF82.20-P-2022T Switch Entry/exit Lamps On/off, Function

Component Identification:

The following lamps are present for better illumination of the surrounding area when entering or exiting the vehicle:
^ Left front door entrance/exit lamp (E17/3)
^ Right front door entrance/exit lamp (E17/4)
^ Left rear door entrance/exit lamp (E17/5)
^ Right rear door entrance/exit lamp (E17/6)
^ Left outside mirror ambient lamp (M21/1e1)
^ Right outside mirror ambient lamp (M21/2e1)

Function requirements:
^ Voltage not to high or too low Rain/light sensor (B38/2) sends the CAN message "Night"
^ Door contact ON and OFF switch (N70s3) is not pressed
^ Unlocking via remote control key (A8/1)
^ Left front door contact switch (S17/3) opened or
^ right front door contact switch (S17/4) opened or
^ left rear door contact switch (S17/5) opened or
^ right rear door contact switch (S17/6) opened

Function
By opening a vehicle door and when the CAN message "Night" is relayed to the overhead control panel control unit (N70) via the rain/light sensor (B38/2), or with remote door unlocking via the transmitter key (A8/1), the particular lamps are actuated via the:
^ Left front door control unit (N69/1)
^ Right front door control unit (N69/2)
^ Left rear door control unit (N69/3)
^ Right rear door control unit (N69/4)

The status of the various door contact switches are read in by the rear SAM control unit with fuse and relay module (N10/2). These are passed on as a CAN message via the interior CAN.

Switching the entrance/exit lamps on and off
If the corresponding vehicle door is closed. If the vehicle door remains open for more than 5 minutes, the entrance/exit lamps are automatically switched off via the overhead control panel control unit (N70).

Switching on again after automatic switch-off
The duty cycle extends or renews itself, if a status change occurs at the door contact switches, "circuit 15 ON" is switched on via the electronic ignition switch control unit (N73), or the vehicle is locked or unlocked and as a result of the interior CAN being deactivated or activated.

The CAN message "night" is set in the event of a defect in the rain/light sensor (B38/2).

The entrance/exit lamps are independent of the adjustment of the automatic driving light actuation in the instrument cluster (A1).

In Model 211.6, depending on equipment and special body, the number and position of the interior lamps may vary.