2009 International Prostar with Cummins 525 ISX Fault Codes

U can go on cummins quick serve and sign up for a free account for up to 5 serial number there u will find much more information bout fault codes and all but u have to be able to pull the codes from the engine that's the best i can do to help u without plugging my computer on the truck.

 

Here is a run down of what the codes you listed come up as.
102:18 Intake Manifold 1 Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level
111:18 Coolant Level - Data Valid But Below Normal Operating Range - Moderately Severe Level
411:2 Exhaust Gas Recirculation Differential Pressure - Data Erratic, Intermittent, or Incorrect
627:2 Power Supply Lost With Ignition On - Data Erratic, Intermittent, or Incorrect
647:4 Fan Control Circuit - Voltage Below Normal or Shorted to Low Source
1209:4 Exhaust Gas Pressure Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source
1807:2 NOT A CUMMINS CODE - NO INFO
2789:15 Turbocharger Turbine Intake Temperature - Data Valid But Above Normal Operating Range - Least Severe Level
2789:16 Turbocharger Turbine Intake Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level
5298:17 Aftertreatment Diesel Oxidation Catalyst Conversion Efficiency - Data Valid But Below Normal Operating Range - Least Severe Level
5298:18 Aftertreatment 1 Diesel Oxidation Catalyst Conversion Efficiency - Data Valid But Below Normal Operating Range - Moderately Severe Level

[FONT=Verdana, Arial, sans-serif]Going off of those codes and nothing else here is what I would be looking at to start. [/FONT]
[FONT=Verdana, Arial, sans-serif]For the 102 code I would clean the intake manifold pressure sensor and see if that keeps the code from returning, because of the EGR the intake pressure sensor is know to get plugged up with soot from time to time and throw a code or reduce performance.[/FONT]
[FONT=Verdana, Arial, sans-serif]For the 411 code make sure the tubes and orifices for the EGR differential pressure sensor are clear from soot blockage.[/FONT]
[FONT=Verdana, Arial, sans-serif]For the 5298 codes first thing I would check is the aftertreatment doser injector for proper flow, and clean or replace as required. Cummins insite is required to test the doser flow so you will have to take it to a shop that can do it.[/FONT]
[FONT=Verdana, Arial, sans-serif]Code 2789 is referring to a calculated temperature of the exhaust gasses entering the exhaust side of the turbo and uses intake manifold air temp, engine speed, injection timing, intake manifold pressure, and fuel flow among other things to calculate is so these codes could be related to the faulty readings from the intake manifold pressure sensor(that code 102 you have).[/FONT]
[FONT=Verdana, Arial, sans-serif]Codes 647 and 1209 are pretty self explanatory, and as for the rest they are nothing I would really worry about if they don't have many counts.[/FONT]