Question Brake circuit B

[LMB Welding]

Can some one tell me what is all on brake circuit B I have this code popping up an can not find what's wrong. I don't expect you to know what's wrong I just need to know what's on brake circuit B. Thanks

Ps it's on a 08 f350

 

[JLDickmon]

what's it doing? (or not doing?)

 

[LMB Welding]

Just getting code and trying to find the problem.

 

[JLDickmon]

what code is it throwing?

 

[LMB Welding]

P0703.

 

[DaveBen]

P0703 Torque Converter/Brake Switch B Circuit Malfunction. - This is from the WIKI Technical section in the top blue line.

What makes you think this is due to the brake malfunction? Could be the torque converter. But the brake switch is cheaper. I don't have the Service DVD for your year of truck, and the 2004 does not have a Circuit B.

Dave