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Exterior lights function - GF82.10-P-0003CE

MODEL 204.0/2 as of model year 2009 

MODEL 204.3 

MODEL 204.9 

Fig 1: Exterior Lights Block Diagram
G10084689Courtesy of MERCEDES-BENZ USA

Model 204.0/2/3 without code (614) Bi-xenon headlamp unit and without code (618) Bi-xenon headlamp and without code (615) Bi-xenon headlamp unit with integrated curve illumination and without code (616) Bi-xenon headlamp unit with integrated asymmetric curve illumination and without code (621) Intelligent light system (left-hand traffic) and without code (622) Intelligent light system (right-hand traffic) 

Fig 2: Exterior Lights Block Diagram - Shown On Model 204.0/2/3
G10084690Courtesy of MERCEDES-BENZ USA

Model 204.0/2 up to 28.2.11 with code (614) Bi-xenon headlamp unit or code (618) Bi-xenon headlamps or code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi-xenon headlamp unit with integrated asymmetric curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic) 

Fig 3: Exterior Lights Block Diagram - Shown On Model 204.0/2 (1 Of 2)
G10084691Courtesy of MERCEDES-BENZ USA
Fig 4: Exterior Lights Block Diagram - Shown On Model 204.0/2 (2 Of 2)
G10084692Courtesy of MERCEDES-BENZ USA

Model 204.0/2 as of 1.3.11 and model 204.3 with code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi-xenon headlamp unit with integrated asymmetric curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic) 

Fig 5: Exterior Lights Block Diagram - Shown On Model 204.0/2 (1 Of 2)
G10084693Courtesy of MERCEDES-BENZ USA
Fig 6: Exterior Lights Block Diagram - Shown On Model 204.0/2 (2 Of 2)
G10084694Courtesy of MERCEDES-BENZ USA

Model 204.9 up to 31.5.12 without code (615) Bi-xenon headlamp unit with integrated curve illumination and without code (621) Intelligent light system (left-hand traffic) and without code (622) Intelligent light system (right-hand traffic) 

Fig 7: Exterior Lights Block Diagram - Shown On Model 204.9
G10084695Courtesy of MERCEDES-BENZ USA

Model 204.9 as of 1.6.12 without code (615) Bi-xenon headlamp unit with integrated curve illumination and without code (621) Intelligent light system (left-hand traffic) and without code (622) Intelligent light system (right-hand traffic) 

Fig 8: Exterior Lights Block Diagram - Shown On Model 204.9
G10084696Courtesy of MERCEDES-BENZ USA

Model 204.9 up to 31.5.12 with code (615) Bi-xenon headlamp unit with integrated curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic) 

Fig 9: Exterior Lights Block Diagram - Shown On Model 204.9
G10084697Courtesy of MERCEDES-BENZ USA

Model 204.9 as of 1.6.12 with code (615) Bi-xenon headlamp unit with integrated curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic) 

Function requirements, general 

Exterior lights (ABL), general 

The exterior lights control all the safety and comfort-relevant functions of the front, side and rear lights of the vehicle.

The exterior lights system includes the following subfunctions:

Further subfunctions are described in separate documents:

Function sequence, on-board network increase 

When the on-board electrical system voltage is decreased by the on-board electrical system management below the minimum voltage of a light function during normal driving operation, the front SAM control unit can suppress shutoff of the corresponding light function with the aid of the on-board electrical system increase. For this purpose, the front SAM control unit requests the minimum voltage necessary for the corresponding light function. The lighting functions for which the on-board electrical system increase is to be activated are defined during production.

The following functions can be coded:

Function sequence for switching off the exterior lights 

Switching off the exterior lights prevents the on-board electrical system battery (G1) from being discharged by the active low beam and standing light actuation.

The low beams may be switched on due to the auto on/off headlamps, the daytime running lights or manually via the exterior lights switch. A prerequisite for this is that the status of circuit 15 is On. If circuit 15 is Off, the low beams are switched off.

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 have been activated because of the manually activated low beams, auto on/off headlamps or the daytime running lights, and the driver door is opened at circuit 15C ON, the standing lights are switched off.

If the standing lights were manually switched on (exterior lights switch set to the "Standing lights" position) then, on model 204.0/2. up to 28.2.11 and on model 204.9 up to 31.5.12, they are not switched off. On model 204.0/2 as of 1.3.11, on model 204.3 and on model 204.9 as of 1.6.12, the standing lights are switched off when the on-board electrical system management determines that the engine's starting capability is impaired because the on-board electrical system battery has been discharged.

IMPORTANT If the "Ambient illumination" function is activated via the instrument cluster, it automatically switches itself on when the engine is turned off. The standing lights remain switched on for a fixed time interval of t = 60 s.

The "Ambient illumination" function is described in the "Headlamp switch-off delay (SWA) function" document.

Standing/parking lights actuation, function   GF82.10-P-3060CE 
Headlamp control, function MODEL 204.0/2 as of model year 2009 without CODE 614 (Bi-xenon headlamps) without CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) without CODE 616 (Bi-xenon headlamps w. headlamp cornering fct.) without CODE 618 (Bi-xenon headlamps) without CODE 621 (Intelligent Light System (left-hand traffic)) without CODE 622 (Intelligent Light System (right-hand traffic)) MODEL 204.3 without CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) without CODE 616 (Bi-xenon headlamp unit with integrated asymmetric curve illumination) without CODE 621 (Intelligent Light System (left-hand traffic)) without CODE 622 (Intelligent Light System (right-hand traffic)) MODEL 204.9 without CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) without CODE 621 (Intelligent Light System (left-hand traffic)) without CODE 622 (Intelligent Light System (right-hand traffic)) GF82.10-P-2009CE 
MODEL 204.0/2 as of model year 2009 with CODE 614 (Bi-xenon headlamp unit) with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) with CODE 616 (Bi-xenon headlamp unit with integrated asymmetric curve illumination) with CODE 618 (Bi-xenon headlamps) with CODE 621 (Intelligent Light System (left-hand traffic)) with CODE 622 (Intelligent Light System (right-hand traffic)) MODEL 204.3 with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) with CODE 616 (Bi-xenon headlamp unit with integrated asymmetric curve illumination) with CODE 621 (Intelligent Light System (left-hand traffic)) with CODE 622 (Intelligent Light System (right-hand traffic)) MODEL 204.9 with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) with CODE 621 (Intelligent Light System (left-hand traffic)) with CODE 622 (Intelligent Light System (right-hand traffic)) GF82.10-P-2009CEA 
Additional functions for driving lights actuation, function MODEL 204.0/2 as of model year 2009 with CODE 608 (Adaptive Main Beam Assist) with CODE 614 (Bi-xenon headlamps) with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) with CODE 616 (Bi-xenon headlamp unit with integrated asymmetric curve illumination) with CODE 618 (Bi-xenon headlamps) with CODE 621 (Intelligent Light System (left-hand traffic)) with CODE 622 (Intelligent Light System (right-hand traffic)) MODEL 204.3 with CODE 608 (Adaptive Main Beam Assist) with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) with CODE 616 (Bi-xenon headlamp unit with integrated asymmetric curve illumination) with CODE 621 (Intelligent Light System (left-hand traffic)) with CODE 622 (Intelligent Light System (right-hand traffic)) MODEL 204.9 with CODE 608 (Adaptive Main Beam Assist) with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) with CODE 621 (Intelligent Light System (left-hand traffic)) with CODE 622 (Intelligent Light System (right-hand traffic)) GF82.10-P-3050CE 
Front fog light actuation, function   GF82.10-P-3070CE 
Turn signal indicator actuation, function   GF82.10-P-3008CE 
Brake light actuation, function   GF82.10-P-3010CE 
Backup lamp actuation, function   GF82.10-P-3011CE 
Headlight switch off delay function   GF82.10-P-2011CE 
Substitute lights and emergency lights actuation, function   GF82.10-P-3080CE 
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