Note On INTERMITTENTS:
If code B663 is setting intermittently, make sure owner is not overrunning set speed by more than 30 MPH. Check vacuum source and brake release vacuum lines for proper connections or slow leaks.
If code B663 is setting intermittently, make sure owner is not overrunning set speed by more than 30 MPH. Check vacuum source and brake release vacuum lines for proper connections or slow leaks.