I have a PR4500 with a DC Power Steering Motor. The motor does not engage all the time causing loss of power steering. I have verified power to the solenoid, the Access is displaying "ON" when looking at A3.4 while standing on the presence switch and brake.

I have replaced the solenoid-it appeared to have been tapped a few times in the past.

I have also replaced the brushes in the motor. I have power to the solenoid, FU1, 2, & 3 are all good.

I have to be missing something simple.....