I have a 87 FJ60. I have the combination switch that is in the FAQ, So I did lose the Intermittent mode. I have replaced the Wiper linkage with new OEM. the low mode works fine. But when I turn to the high mode the wiper arms just stop. I think its a ground issue. I am not super comfortable with cracking open the motor itself. Hoping its just a wiring connection. Any help would be great!