Diagnostic Trouble Code (DTC) Charts - TheDieselStop.com
Diagnostic Trouble Code (DTC) Charts - TheDieselStop.com
Diagnostic Trouble Code (DTC) Charts - TheDieselStop.com
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6.0L Diesel <strong>Diagnostic</strong> <strong>Trouble</strong> <strong>Code</strong> (<strong>DTC</strong>) Descriptions<strong>DTC</strong> Description Possible Causes <strong>Diagnostic</strong> Aids324 — Idle Shutdown The IST feature is internal • <strong>DTC</strong> 324 is set by the <strong>DTC</strong> 324 does not indicateTimer Enabled Engine to the PCM. The PCM when the engine any system or circuitShutdown subsystems that contribute has been shutdown due <strong>DTC</strong>s. <strong>Diagnostic</strong> checksto the IST strategy have to exceeding the are not required for <strong>DTC</strong>their own fault codes. The programmed idle time 324.fault code for the IST is not criteria. The IST featurea system diagnostic trouble must be enabled for <strong>DTC</strong>code. The IST fault code is 324 to be displayed.only set to indicate that theIST has been activated andthe engine has shutdown.<strong>DTC</strong> 325 — Power <strong>DTC</strong> 325 is set by the • When the temperature For each Celsius degree ofReduced - Matched To PCM when the cooling drops below 107°C temperature the fuel will beCooling System system temperature (225°C ) the <strong>DTC</strong> will reduced 6%. This reducesPerformance exceeds 107°C (225°C). At be<strong>com</strong>e inactive and the the heat produced by thethis temperature the PCM engine will return to engine and reduces thewill reduce the fuel normal operation. burden on the coolingdelivered to the engine.system. The vehicle speedwill also be reduced andallow the operator todownshift and increase theefficiency of the coolingsystem. As the temperatureis reduced the<strong>com</strong>pensation level isreduced until thetemperature drops below107°C (225°F ) and normaloperation is resumed.<strong>DTC</strong> 331 - Injection <strong>DTC</strong> 331 is set by the <strong>DTC</strong> 331 can be an Check oil level forControl Pressure Above PCM when the injection indicator of a problem in contamination, debris, andSystem Working Range control pressure is above the mechanical injection correct API classification.normal working range of 25 control pressure system,MPa (3675 psi). When wiring, or ICP sensor.<strong>DTC</strong> 331 is active, the Possible causes for <strong>DTC</strong>PCM will ignore feedback 331 include the following:from the ICP sensor and • Debris in enginecontrol the IPR valve from • Incorrect grade of oil(Continued)programmed defaultvalues.• Defective, stuck orplugged inlet on the IPRvalve• IPR control wire shortedto ground• ICP sensor or circuitcausing signal to bebiased highThe amber ENGINEindicator will be illuminatedwhen <strong>DTC</strong> 331 is active.2004 F650/F750 6.0L Diesel
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