Allow me to help in diagnosing your vehicle! If I helped make sure to hit ACCEPT button so as I can get credited.This is indicating a concern with the TBC (Trailer Brake controller) system. You will require to have the codes pulled from the module.
ok...my original concern is that the truck just stopped running recently...it tries to start but doesn't catch..in the process of trying to start it I got the above message. We have changed the batteries and both fuel filters but it still won't start..it only has 30,000 miles on it. I haven't been driving it much..it is my husband's truck and he is currently deployed to Iraq...can you tell me what else to try? Could it be the glo plugs?
You will have to have the codes pulled from the powertrain modules to diagnose further. Here is a TSB for your vehicle for a no start but it will still have to have the codes pulled
Some 2003-2007 F-Super Duty, 2003-2005 Excursion and 2004-2010 E-Series vehicles equipped with a 6.0L engine may exhibit a runs rough, lacks power, hard start, no start concern with or without diagnostic trouble code (DTC) P0611 code or various injector circuit codes. This concern may be caused by a DC-DC converter located in one half of the Fuel Injector Control Module (FICM) or by the main circuit board in the other half of the FICM.
Follow the Service Procedure steps to correct the condition.
The FICM contains two major internal components, the main circuit board and a DC-DC converter. The DC-DC converter is the device that amplifies battery voltage to 48 volts to operate the injectors.
Low FICM supply voltage results in increased FICM operating loads, potentially damaging or shortening the life of the FICM.
For contribution codes without circuit codes, go to Powertrain Controls/Emissions Diagnosis (PC/ED) pinpoint test P. Do not continue with this procedure.
Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage can result. Extreme care should be taken when performing this repair.
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty CoverageIMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.