Windshield Wiper System, Function - GF82.30-P-0001KJ

MODEL 453.0/3/4 

Courtesy of MERCEDES-BENZ USA

Function requirements, general 

• Circuit 15 ON or circuit 30g ON (comfort status or run-on active)

The comfort status (circuit "30g" ON) is active for about 75 s after unlocking the vehicle or opening a door. The comfort status or run-on is also active after the ignition has been switched off (circuit "15" OFF). During this time, certain functions of the windshield wiper system can be switched on using the windshield wiper system switch. The status of the driver door is read in by the center SAM control unit via the driver door central locking microswitch. The center SAM control unit then transmits this status via the interior CAN to the driver-side SAM control unit. The driver-side SAM control unit receives the circuit status circuit "15" ON from the ignition lock from the vehicle interior fuse and relay module over a direct line. In order to do this, the ignition lock switches a relay in the vehicle interior fuse and relay module, which switches circuit "15g" through to the driver-side SAM control unit.

Windshield wiper system, general 

Two versions of the windshield wiper system are available:

• Vehicles without code V54 (Rain/light sensor) (comfort windshield wipers with intermittent wipe and automatic wipe/wash)
• Vehicles with code V54 (Rain/light sensor) (comfort windshield wipers with intermittent wipe and automatic wipe/wash)

In both variants, the windshield wiper system is operated centrally via the windshield wiper system switch. The position of the windshield wiper system switch for operating the front windshield wiper system is read in directly by the driver-side SAM control unit. The driver-side SAM control unit then actuates the wiper motor directly. The windshield washer system pump is actuated directly over the windshield washer system switch. Models 453.0 and 453.3 are also equipped with a rear-window wiper system. The rear window wiper system is actuated by the center SAM control unit. The general functions of the windshield wiper system are:

Windshield:

• Wiping at slow speed
• Wiping at fast speed
• Wiping with washer fluid (washing)
• Intermittent wipe (vehicles without code V54 (Rain/light sensor))
• Automatic intermittent wipe (vehicles with code V54 (Rain/light sensor))
• Automatic speed-dependent wiper control

Rear window:

• Intermittent wipe
• Wiping with washer fluid (washing)
• Automatic wiping when reverse gear engaged

Subfunctions 

The windshield wiper system comprises the following subfunctions, which are described in separate documents:

• Windshield wiper, function
• Windshield washer, function
• Automatic speed reduction of windshield wiper system, function (except CODE 494 (USA version))
• Rear window wiper system, function

	Windshield wiper, function		GF82.30-P-3004KJ
	Windshield washer, function		GF82.35-P-3002KJ
	Windshield wiper system automatic speed reduction function	Vehicles without code 494 (USA version)	GF82.30-P-4009KJ
	Rear window wiper system, function	Only model 453.0/3	GF82.30-P-2400KJ