wah wah waaahhhhhh..... glow plugs?

[rocky_k1k]

Hey guys and gals, went to start my truck this morning, was about 50 degrees outside. Crank crank crank crank.. billowing white smoke. She would not run for the life of it. Waited a minute and put my scanner on and kept cranking. Finally started up and kept smoking. List of codes for all 8 glow plugs, and then a code for the glow plug control module. A diesel shop had just replaced the passenger side glow plug harness last week. Could this be a fault of theirs? It had no problems until this morning. Its a couple hundred to replace the module if that IS that problem. Anyone know where the module is located?
I dont have the actual codes right now, not with the truck and not near my code sheet.

Thanks for the help.
Keep on rollin

[sinner6.0L]

the module is on the front of the right valvecover. if you're throwing all codes for the module the first thing to do would be to check the powers and grounds to the module, if those check out I'd look into getting it replaced

[rocky_k1k]

thanks for the help sinner6.0, Ill post tomorrow during the day about what happens.