Thats just probably talking about the two washer pump wiring plus the reservoir sensor that's towards the side/bottom of the reservoir. Try cleaning the sensor inside first. A lot of times it just gets dirty or loose.

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Current:
2002 X5 3.0i E53 - Max

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2003 XB9s - Rebeka(missed)
1993 525i E34 - Elizabeth(sold at 83K miles)