I have a 2007 CTD with the 5.9L, truck is running rough with lots smoke and has set the following codes. p483, p2509,u1421,p1403. If anyone can get me the description i would appreciate it. Thanks

 

Try this, http://wiki.dieseltruckresource.com/wiki/Computer_codes

 

Your truck should still be under warranty unless you have modified it,
Try cleaning all gounds and battery connection first. Check battery voltages.

P2509-POWERDOWN DATA LOST ERROR
Possible causes are
POOR CONNECTIONS AT THE BATTERIES
LOW BATTERY VOLTAGE
OPEN FUSED B+ TO ECM
OPEN GROUND CIRCUIT
BATTERY + SHORTED TO OTHER CIRCUITS
RETURN CIRCUIT SHORTED
BATTERY + SHORTED TO GROUND
INTERMITTENT CONDITION

P0483-FAN SPEED Possible causes are
K161) FAN SPEED SENSOR SIGNAL CIRCUIT SHORTED TO THE (K668) 5-VOLT SUPPLY CIRCUIT
(K161) FAN SPEED SENSOR SIGNAL CIRCUIT OPEN FROM ECM TO FAN CLUTCH ASSEMBLY
(K668) 5-VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
(K161) SIGNAL CIRCUIT SHORTED TO (K690) SENSOR GROUND
(K161) FAN SPEED SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K161) FAN SPEED SENSOR SIGNAL CIRCUIT IN ECM SHORTED TO GROUND INSIDE ECM
(K161) FAN SPEED SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE IN THE ECM
(K668) 5-VOLT SUPPLY CIRCUIT IN ECM
U1421-IMPLAUSIBLE IGNITION KEY OFF TIME RECEIVED
CAN B OPEN OR SHORTED
CLUSTER MODULE
FCM (TOTALLY INTEGRATED POWER MODULE)
ECM

U1421-IMPLAUSIBLE IGNITION KEY OFF TIME RECEIVED
Possible causes are
CAN B OPEN OR SHORTED
CLUSTER MODULE
FCM (TOTALLY INTEGRATED POWER MODULE)
ECM