I had the luxury of having both the intermittent setting and the wiper home/rest position fail. The FSM would have you believe that failure to park is only a harness or wiper motor issue. The parking issue was more pressing to me than the intermittent setting, so I've been focusing on the harness and motor.
Finally managed to test a known good relay and everything was working.
Took the known bad apart and I had a dry burnt joint on one of the internal relays.
Just throw some more solder on there and try to save $150 on a new relay. The blue relays are German and pretty expensive at $20 a pop. I would try to harvest a usable one from a Junkyard relay if that turns out to be nonworking.
Also of note they used black epoxy to help keep the caps from vibrating to failure and I thought they were all blown to hell.
TL;DR if BOTH Parking and intermittent is broken its likely just the relay, despite what the FSM says.
Finally managed to test a known good relay and everything was working.
Took the known bad apart and I had a dry burnt joint on one of the internal relays.
Just throw some more solder on there and try to save $150 on a new relay. The blue relays are German and pretty expensive at $20 a pop. I would try to harvest a usable one from a Junkyard relay if that turns out to be nonworking.
Also of note they used black epoxy to help keep the caps from vibrating to failure and I thought they were all blown to hell.
TL;DR if BOTH Parking and intermittent is broken its likely just the relay, despite what the FSM says.
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