[aknovaman]

Stop guessing without real data. You guys are funny. You throw suggestions out like popcorn. What's next, replace the gas cap?

OP, go find someone who has HP tuners, datalog what the inputs and outputs are doing and troubleshoot it logically with real data. Otherwise you are just guessing.

In hpt, the satus bits will tell you if the switches are commanding cruise, brake pedal status to the PCM and it will also tell you if the output is enabled among other things.