what could be the cause of p1682

Question

what could be the causes of code p1682 in 07 chevy 4x4 5.3l truck

Answer 1

P1682 Ignition 1 switch circuit 2

What cause this code condition is  high resitance and a difference between both circuit. as a first step replace the relay , (Do not swap it out with another relay) Replace the Powertrain PWRTRN) and the Run/Crank