You need to connect the D6 pin to ground. otherwise, the PWM pins D3 and D9 will not output voltage.
in AutosteerPVCBv2.ino setup…
#define SwitchOrButton 0 // set to 0 to use steer switch as switch
// set to 1 to use steer switch as button
// Button/switch pulls pin low to activate
//--------------------------- Switch Input Pins ------------------------
#define STEERSW_PIN 6 //PD6