Standing/parking lights actuation, function - GF82.10-P-3060CA

MODEL 207.3/4 up to model year 2014 

Function requirements for standing/parking lights actuation, general 

• No overvoltage or undervoltage (operating voltage range U ≥ 7 ≤ 17.5 V)

Standing/parking lights, general 

The standing/parking lights actuation serves to mark the parked vehicle in darkness.

The standing/parking lights actuation is comprised of the following subfunctions:

• Standing lamp actuation function sequence 
• Function sequence for lights on reminder warning 
• Parking lights actuation function sequence 

Standing lamp actuation function sequence 

Turning the exterior lights switch (S1) to the standing lights position requests actuation of the standing lights.

The front SAM control unit with fuse and relay module (N10/1) reads in the status of the exterior lights switch on model 207.3 up to 31.5.10 over the instrument panel LIN (LIN 1) and on model 207.3 as of 1.6.10, model 207.4 directly (voltage-coded), and sends the request over the interior CAN (CAN B) to the rear SAM control unit with fuse and relay module (N10/2) and on vehicles with code (550) Trailer hitch to the trailer recognition control unit (N28/1).

In addition, the front SAM control unit sends the status "Standing light actuation active" via the interior CAN to the instrument cluster (A1), which then switches on the instrument scale illumination.

The front SAM control unit actuates the following components directly:

• Left front lamp unit (E1)
  • Left front standing light and parking light (E1e3)
• Right front lamp unit (E2)
  • Right front standing light and parking light (E2e3)
• Additional with code (460) Canada version or code (494) USA version:
  • Left front side marker lamp (E6/1)
  • Right front side marker lamp (E6/2)

The rear SAM control unit actuates the following components directly:

• Left rear lamp unit (E3)
  • Outer left brake light and taillight (E3e11)
  • Outer left background light (E3e15)
• Inner left rear lamp unit (E3/1)
  • Inner left brake light and taillight (E3/1e4)
  • Inner left background light (E3/1e6)
• Right rear lamp unit (E4)
  • Outer right brake light and taillight (E4e11)
  • Outer right background light (E4e15)
• Inner right rear lamp unit (E4/1)
  • Inner right brake light and taillight (E4/1e4)
  • Inner right background light (E4/1e6)
• Left license plate lamp (E19/1)
• Right license plate lamp (E19/2)

The trailer recognition control unit actuates the following components of the trailer via the trailer socket (X58) (with code (550) Trailer hitch):

• Taillights
• License plate lights

Additional function requirements for lights on reminder 

• Standing lights ON
• Driver door OPEN
• Circuit 15C OFF

Function sequence for lights on reminder warning 

The logic for requesting the lights on reminder function is stored in the front SAM control unit.

The left front door control unit (N69/1) sends the status of the driver door and the electronic ignition lock control unit (N73) sends the status of circuit 15 over interior CAN to the front SAM control unit.

The front SAM control unit receives this information and from it generates the request for output of the lights on reminder function and transmits this to the instrument cluster via the interior CAN. The instrument cluster then actuates the warning buzzer (A1h1). The message "switch light off" appears in the multifunction display (A1p13) of the instrument cluster.

The standing lights may be on due to the low beams having been manually switched on, due to the auto on/off headlamps or the daytime running lights, or they can be switched on manually via the exterior lights switch.

If the standing lights are activated by manually switching on the low beams, the auto on/off headlamps or the daytime running lights, and the driver door is then opened using a transmitter key in the electronic ignition lock control unit, the standing lights will be switched off.

If, at circuit 15C on model 207.3 up to 31.5.10 with active rear fog lamp actuation the key is removed from the electronic ignition lock control unit, and then the driver door is opened, the instrument cluster actuates the warning buzzer, and issues a corresponding message on the multifunction display. The request to deactivate rear fog light actuation via the exterior lights switch prevents the automatic actuation of the rear fog light the next time the vehicle is driven with the low beams switched on.

Parking lights actuation function sequence 

By turning the exterior lights switch to the left parking lights position or the right parking lights position, the parking lights actuation is requested for the corresponding side of vehicle.

The front SAM control unit reads in the status of the exterior lights switch and transmits the request via the interior CAN to the rear SAM control unit and, if necessary, to the trailer recognition control unit. Left parking light:

The front SAM control unit actuates the following component:

• Left front lamp unit
  • Left front standing and parking lamp

The rear SAM control unit actuates the following components:

• Left rear lamp unit
  • Left stop lamp and taillamp and parking lamp
  • Inner left brake light and taillight (with code (460) Canada version or code (494) USA version)

The trailer recognition control unit actuates the left taillight on the trailer.

Right parking light:

The front SAM control unit actuates the following component:

• Right front lamp unit
  • Right front standing and parking lamp

The rear SAM control unit actuates the following components:

• Right rear lamp unit
  • Right stop lamp and taillamp and parking lamp
  • Inner right brake light and taillight (with code (460) Canada version or code (494) USA version)

The trailer recognition control unit actuates the right taillight on the trailer.

If on vehicles up to 31.5.11 the interior CAN is in "bus idle", the parking lights actuation is stored in the rear SAM control unit and the trailer recognition control unit, until the front SAM control unit requests a deactivation. Even when this results in the on-board electrical system voltage failing and the on-board electrical system battery (G1) being completely discharged.

On vehicles as of 1.6.11 the standing light, parking light function is switched off, when the on-board electrical system management determines that the engine's starting capability is impaired through the discharged on-board electrical system battery.

	Electrical function schematic, standing light/parking lights actuation		PE82.10-P-2054-97EAA
	Overview of exterior lights system components		GF82.10-P-9998CA