I have a 2004 Dodge Ram 1500 5.7L HEMI and am having a hard time pulling the diagnostic trouble codes from it. The MIL has come on andoff a few times over the last couple weeks and I finally decided I wanted to know what the code(s) were that got strored. There are are no outward signs of any problems whatsoever. Every Dodge I've ever seen could have the codes pulled by cycling the ignition key 3 times from off to on. I tried this every way I can think of on this truck and nothing seems to work. Any suggestions would be appreciated.