08 6.4 P0703 Brake Swithc B input circuit

[CISCO]

I am getting a p0703 Brake Switch B input circuit and when watching the boo & bpa pid only the boo changes states when pressing the brake pedal and bpa stays on all the time. So I went to parts and asked for the brake applied switch and they gave me the sensor that goes on rear of the master cylinder and has three wires going to it and the brake applied switch according to the wiring diagrams is showing only a 2 pin connector, is this right? The 2 pin connector goes to the sensor that goes in the front of the master cylinder which I am thinking its the BPA switch according to wiring diagram. Thank you!

[CISCO]

Replaced the front BPA the front sensor on the master cylinder and its now fixed. Now when I press on the brake pedal  both read on and when I release the brake pedal both BPA & BOO read off. Thank you! Hope this helps someone.

[forddieseldoctor]

Which is the same switch in the cruise deactivation switch repair kit from fsa 05s28. 

And my parts guy tells me that the recall part is cheaper. 

[mchan68]

….which makes the other part the brake pressure transducer.