156 wipers move by themselves
My 156 wipers started moving by themselves the other day. Just one wipe but with anywhere between 2 mins and 1 second between. It might have been spitting at the time so I looked up the operation of the rain sensor and apparently it only does its thing when on intermittent, and the switch was off.
I took the wiper motor out, took the lid off (it's a 5pin motor on a 2005 JTS) and saw the contact plate was caked in grease from the worm drive so I packed it back into the motor and cleaned the plate.
Not had a chance to test it back in the car yet but has anyone had experience of this before? I'm guessing it could be the motor and its controller, the wiper ecu, or the column switch. Would be ideal to not have to buy all 3 if there's some knowledge on here about how to narrow it down!