answersLogoWhite

0

Three possible problems, either the motor is bad, the switch is bad or something in the CANBUS is interfering with the command to turn on. Unlike old school cars the porsche, vw and Audi uses CAN communication to the wiper motor which is also a module to turn on as commanded via switch to steering column module to instrument cluster to wiper motor. To eliminate CAN, you need to remove the radio and check voltage to the orange/brown or orange/lilac. both need to be approximate 2.5volts with key just turned on. If either are excess of 5 volts or 0 volts you might as well take it to a porsche genius like me or a dealer and expect to pay around 10hrs of labor and whatever the part is to fix it.

User Avatar

Wiki User

13y ago

What else can I help you with?