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R-P · Sep 15th, 2010, 16:33

IIRC there's three wires running from a relay in the side of the trunk to the wiper.
I never looked into the working of the 'third wire'. I do have the schematics of the Volvo somewhere, but I cannot understand them properly (I am an EE, but they are seriously unreadable!).

My best guess would be that either the power is not getting to the wiper and/or the relay is causing this.

Cannot really help you beyond what you already figured out yourself...

Sep 15th, 2010, 16:33	#15
R-P Master Member Last Online: Mar 26th, 2024 14:00 Join Date: Apr 2009 Location: Rozenburg NL	IIRC there's three wires running from a relay in the side of the trunk to the wiper. I never looked into the working of the 'third wire'. I do have the schematics of the Volvo somewhere, but I cannot understand them properly (I am an EE, but they are seriously unreadable!). My best guess would be that either the power is not getting to the wiper and/or the relay is causing this. Cannot really help you beyond what you already figured out yourself... __________________ Ex police Jan '04 V70 D5 AWD geartronic, and I've got the antenna-holes to prove it.