Some information on the BMW E46 Wiper Relay
P/N 61.36-8 384 505
I do not sell this relays. If you want one go to your local BMW and buy
one or buy from ECStuning.com. ECS Tuning
has the relay for $18.43 plus shipping.
First a little signal flow information. The control for the wipers is on a stalk on the steering column. There are two digital signals for the four positions (SW1, SW2: 00=Off, 10=Intermittant, 01=Stage 1 and 11=Stage 2). There is also one resistive signal for speed of the intermittant wipers. From slow to fast they are, 2K for position 1, 4K for position 2, 6K for position 3 and 8K for position 4. Washer Switch if for the windshield washer sprayer.
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Wiper Stalk
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GM5 Connections |
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Wiper Switch 1
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X295-7
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X253-1
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Wiper Switch 2
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X295-1
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X253-3
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Intermittent Speed
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X295-9
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X253-46
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Washer Switch
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X295-4
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X253-19
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These three lines go from the stalk control to the General Module 5 where the microprocessor inside determines what to do. There are then three outputs to the wiper system and one input. The three inputs are wiper relay, wiper relay speed 2 and washer pump. The input is wipers are in the rest position.
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Signal Name |
GM5 Connections
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Wiper Relay Speed 1
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WI1
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X253-11
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Wiper Relay Speed 2
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WI2
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X253-30
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Wiper Rest Position Input
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RSK
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X253-45
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Washer pump
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WP
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X332-2
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Headlight washer pump
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SRA
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X253-12
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To activate Wiper Relay Speed 1 you need to connect this line to ground.
To activate Wiper Relay Speed 2 you need to connect this line to ground.
To activate the Washer pump you need to supply +12V to this line.
At least that's what it looks like on the WDS.
GM5 Repair Service web page.
BMW General Module III (GM3) Page