GF82.30-P-3002PS Wiping When Reversing, Function

GF82.30-P-3002PS Wiping When Reversing, Function

MODELS 203.2 up to 4/23/04







Shown for rain sensor (B38) up to 31.5.03
A1 Instrument cluster
B38 Rain sensor (with code (345a) rain sensor up to 31.5.03)
B38/2 Rain/light sensor (with code (345a) rain sensor as of1.6.03)
M6/1 Wiper motor
M6/4 Tailgate wiper motor
N10/1 Front SAM control unit with fuse and relay module
N10/2 Rear SAM control unit with fuse and relay module
N15/5 Electronic selector lever module control unit (with transmission 722)
N70 Overhead control panel control unit
N72/1 Upper control panel control unit
N72/1s12 Rear-end door wiper switch
N73 DI control unit
N80 Steering column module
S4 Combination switch
S16/2 Backup lamp switch (with transmission 716)
S17/3 Left front door contact switch
S17/4 Right front door contact switch
S62 ATA hood switch
A Reading in of combination switch (S4) up to 30.6.03
B Reading in of combination switch (S4) as of 1.7.03
CAN-B Controller area network bus class B (interior compartment) (CAN B)
CAN-C Controller Area Network bus, class C (engine compartment) (CAN C)

Function:
If the vehicle is shifted into reverse gear while the windshield wiper is switched on, then the rear-end door wiper motor (M6/4) is also switched on. The function rear window wiping while reversing depends on the switch-on state of the windshield wiper system. Therefore the following functions are described depending on the switch position of the combination switch (S4).

Function prerequisites:
- Circuit 15R ON
- Windshield wiper in operation
- Backup signal from the electronic selector lever module control unit (N15/5) (on transmission 722) or from the backup lamp switch (S16/2) (on transmission 716)

Operating procedure
The backup signal is transmitted from the electronic selector lever module control unit (N15/5) over the Control Area Network bus class B (interior) (CAN-B) or from the backup lamp switch (S16/2) via a separate line to the rear SAM control unit with fuse and relay module (N10/2). The rear SAM control unit with fuse and relay module (N10/2) actuates the rear-end door wiper motor (M6/4).

Function sequence with combination switch (S4) in position "I" intermittent wiping

Without code (345a) rain sensor
The first wiping cycle is actuated immediately. Then the rear window wiper is operated in the intermittent mode. The intermittent pauses have a duration of 5 seconds.

With rain sensor with code (345a)
The first wiping cycle is actuated immediately. Then the rear window wiper is operated in the intermittent mode. The intermittent pauses are determined by the rain sensor (B38) or by the rain/light sensor (B38/2).

Combination switch (S4) in position "II" or "III" for slow or fast wiping
The first wiping cycle is actuated immediately. Then the rear window wiper is set to continuous wiping.
The function rear window wiping when reversing always has priority over the function rear window intermittent wiping.

Switching off rear wiper system
The function rear window wiping when reversing is switched off when the backup signal is no longer recognized or the windshield wiper system is switched off.