So my 850 has been throwing DTC code 443 for the ABS system, saying there is an ABS Pump failure. The service manual says that if the computer detects a voltage between the two blue wires that is less than 500mV AC it will throw the code. I've worked through the given troubleshooting steps and this is the only thing that isn't to spec, instead reading ~30-200mV. The motors brushes are fine and the motor still runs as it should with the power cables hooked up to battery voltage. Tearing down the motor I've discovered that the blue leads run to two pins on the motor housing which go into this little plastic thingy. Continuity is fine between the female pins and the blue leads so breaks in the connection aren't the issue. The plastic thingy has a little metal insert that just sits there without any connection to anything so I'm stumped as to how this works or how to get the voltage up to 500mV. Just wondering if anyone has experience with these or any tips on how to get the voltage above 500mV? Just not keen on dropping $220 on a used pump modulator that might not even work when this one at least spins.
Motor Internals
Female connector pins
4 pin plug (what's left of it)
ABS Modulator
Magical plastic thing
