BrakeFade

If anyone has a schematic for the Airmatic control, I would really appreciate a copy. I keep blowing fuse 37 (15a) in the driver side dash. I get the display malfunction error and both airmatic control buttons at the shifter base lose power. Once I replace the fuse everything works fine. But it eventually blows again. I replaced the pump 3 months ago. I'd like to trace out this little gremlin...

Any help is appreciated.

2004 e55