GF82.20-P-2200G Automatic Interior Lights Control, Function
GF82.20-P-2200G Automatic Interior Lights Control, Function
MODEL 463.306 /336 /346 up to 31.5.12 as of model year 2011 /YoM 10
MODEL 463.202 /222 /236 /237 /270 /271 /303 /340 /341 up to 31.5.12 as of model year 2009 /YoM 08
1 Day/night signal
2 Status of CL
3 Circuit 58d signal
4 Exterior lights status
5 Door contact switch status
6 Actuation of the rear illumination
7 Dome lamp switch status
8 Footwell illumination actuation
9 Trunk illumination actuation
10 Entrance/exit lamp actuation
11 Luminescent film actuation
13 Hazard warning system switch status
14 Status, circuit 15R
15 Signal of anti-theft alarm system (ATA [EDW]) alarm (with code (FZ5) Anti-theft alarm system (ATA [EDW]))
16 Power supply
A1 Instrument cluster
B32/1 Automatic light switch daylight sensor
E11/1 Left rear reading lamp (on model 463.222/340)
E11/2 Right rear reading lamp (on model 463.222/340)
E15 Dome lamp (on model 463.202/303)
E15/3 Rear dome lamp (in model 463.236/237/270/271/341/346)
E17/3 Left front door entrance/exit lamp
E17/4 Right front door entrance/exit lamp
E17/5 Left rear door entrance/exit lamp (in model 463.236/ 237/270/271/341/346)
E17/6 Right rear door entrance/exit lamp (in model 463.236/ 237/270/271/341/346)
E17/15 Right front footwell lamp (with code (FR1) Ambiance illumination)
E17/16 Left front footwell lamp (with code (FR1) Ambiance illumination)
E17/17 Right front door sill luminescent film
E17/18 Left front door sill luminescent film
E17/23 Left rear footwell lamp (with code (FR1) Ambiance illumination)
E17/24 Right rear footwell lamp (with code (FR1) Ambiance illumination)
E17/28 Left rear door luminescent film (in model 463.236/237/270/271/ 341/346)
E17/29 Right rear door luminescent film (in model 463.236/237/270/271/341/346)
E18/4 Right luggage compartment lamp
E18/5 Left luggage compartment lamp
N10/1 Front signal acquisition and actuation module (SAM)
N10/2 Rear signal acquisition and actuation module (SAM)
N69/1 Door control module front left
N69/2 Door control module front right
N69/3 Left rear door control unit (in model 463.236/237/270/271/ 341/346)
N69/4 Right rear door control unit (in model 463.236/237/270/271/ 341/346)
N70 Overhead control panel control unit
N70s3 Dome lamp switch
N72/1 Upper control panel control unit
N72/1s5 Hazard warning system switch
N73 EZS control unit
S17/3 Left front door contact switch
S17/4 Right front door contact switch
S17/5 Left rear door contact switch (in model 463.236/237/270/271/ 341/346)
S17/6 Right rear door contact switch (in model 463.236/237/270/271/ 341/346)
S17/18 Liftgate contact switch
CAN B Interior CAN
Automatic interior lights control in general
The automatic interior lights control independently controls the interior illumination upon opening a door, unlocking the central locking or switching off the ignition. When opening a door, the actuation of the corresponding entrance/exit illumination is also performed.
The corresponding requests are generated automatically.
The master control unit for the automatic interior lights control is the overhead control panel control unit.
The automatic interior lights control feature consists of the following subfunctions:
^ Locator lighting function sequence
^ Function sequence for entrance and exit illumination
^ Function sequence for load compartment illumination
^ Function sequence for interior illumination with ATA [EDW] alarm (with code (FZ5) Anti-theft alarm system (ATA [EDW]))
Additional function requirements for locator lighting
^ Dome lamp switch in the automatic interior lights position
^ Automatic light switch daylight sensor indicates "darkness"
Locator lighting function sequence
The following signals are read in and evaluated by the overhead control panel control unit for controlling the locator lighting:
- Door contact switch status
- Automatic light switch daylight sensor status
- Status of the central locking (CL [ZV])
- Circuit 15 ON/OFF
The status of the left front door contact switch, the right front door contact switch, the left rear door contact switch, the right rear door contact switch and the rear-end door contact switch is read in by the rear SAM and sent via interior CAN.
The overhead control panel control unit evaluates all incoming information and actuates the following interior illumination components:
- front dome lamp (N70e1)
- Dome lamp
- Left rear reading lamp and right rear reading lamp
- Rear interior lamp (E15/3e3) (in model 463.236/237/270/271/341/346)
The power supply of the rear dome lamp is performed via the rear SAM.
The front dome lamp, the dome lamp, the left rear reading lamp, the right rear reading lamp and the rear interior lamp are switched on and off in a dimmed state.
The following components are actuated by the front SAM:
- Left/right front footwell lamp
- Left/right rear footwell lamp
If all vehicle doors are closed and if the EZS control unit has provided the circuit status circuit 15 ON via the interior CAN, the interior illumination is then switched off.
Upon request of the function by actuating the CL [ZV] via the transmitter key (A8/1), the locator lighting is controlled as follows:
- The interior illumination is switched off after t = 3 s after the vehicle is locked.
- After the last vehicle door is closed, the locator lighting is switched off with circuit 15 OFF after t = 8 s and with circuit 15 ON immediately.
- The interior illumination is switched off after t = 5 min after the last door is opened if all vehicle doors are not closed again.
- The interior illumination is switched off after t = 30 s if a vehicle door is not opened after unlocking the vehicle.
All automatic functions are aborted by manually switching on the interior illumination.
Additional function requirements for entrance and exit illumination
^ Dome lamp switch in the automatic interior lights position
^ Opening a vehicle door
Function sequence for entrance and exit illumination
The following signals are read in by the rear SAM and sent via interior CAN to the overhead control panel control unit to control the entrance/exit illumination:
- Left front door contact switch status
- Right front door contact switch status
- Left rear door contact switch status
- Right rear door contact switch status
The opening of a vehicle door is defined by the status of the door contact switch.
The overhead control panel control unit evaluates this information and sends the switch-on request for the entrance/exit illumination via interior CAN to the following control units:
- Door control module front left
- Door control module front right
- Door control module rear left
- Door control module rear right
The following components of the entry/exit illumination are actuated corresponding to the door status:
- Left front door entrance/exit lamp by the left front door control unit
- Right front door entrance/exit lamp by the right front door control unit
- Left front door entrance luminescent film via the left front door contact switch
- Right front door entrance luminescent film via the right front door contact switch
Furthermore, the following components are actuated according to the door status on model 463.236/237/270/271/341:
- Left rear door entrance/exit lamp by the left rear door control unit
- Right rear door entrance/exit lamp by the right rear door control unit
- Left rear door luminescent film via the left rear door contact switch
- Right rear door luminescent film via the right rear door contact switch
The luminescent films are switched on independent of the day/ night signal of the automatic light switch daylight sensor. The duty cycle with opened door is t = 15 min.
Additional load compartment illumination function requirements
^ Dome lamp switch in the automatic interior lights position
^ Rear-end door open
Function sequence for load compartment illumination
To control the load compartment illumination, the status of the rear-end door contact switch is read in by the rear SAM.
The rear SAM actuates the right trunk lamp and the left trunk lamp in accordance with this status.
If the rear-end door remains open, the trunk lamps are automatically switched off in order to protect the battery (G1) with the circuit status circuit 15 OFF after t = 10 min have expired.
Additional function requirements for interior illumination with ATA [EDW] alarm (with code (FZ5) Anti-theft alarm system (ATA [EDW]))
^ ATA [EDW] alarm activated
Function sequence for interior illumination with ATA [EDW] alarm
The rear SAM control unit sends the "ATA [EDW] alarm triggered" signal via interior CAN to the overhead control panel control unit.
The overhead control panel control unit actuates the front dome lamp and the dome lamp. The rear SAM switches on the rear interior lamp upon request by the overhead control panel control unit.
The front dome lamp, the dome lamp and the rear interior lamp are switched on and off in a dimmed state.
