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Code P 2453

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Please Help

2010 PCM connector

RMADSEN

TDR MEMBER
I have a 2012 4500 cab/chassis with 44,800 miles, all stock. The code is the diesel particulate filter pressure sensor out of range. The exhaust pipe is clean and it goes through the regen cycle. (Edge monitor) The code cleared once on its own, I have cleared it several times but now it is solid. The sensor is $337. Before I shot gun it, is there anything anyone can help me with?
 
This might help:

Theory of Operation The ECM provides a 5-volt supply to the aftertreatment diesel particulate filter differential pressure sensor on the sensor supply circuit. The ECM also supplies a ground on the sensor return circuit. The aftertreatment differential pressure sensor provides a signal to the ECM. This sensor signal voltage changes based on the differential pressure across the aftertreatment diesel particulate filter. The ECM detects that the aftertreatment differential pressure reading is higher than a calibrated threshold when the ignition switch is on and the engine is not running. The ECM also detects that the aftertreatment differential pressure reading does not increase while the vehicle is driving/moving. The ECM illuminates the MIL lamp immediately when the diagnostic runs and fails. A default value is used for the aftertreatment differential pressur~ reading when the fault is active. The ECM will turn off the MIL lamp immediately after the diagnostic runs and passes in four consecutive drive cycles or the DTC has been cleared by a scan tool
• When Monitored: When the key is turned on .
• Set Condition: The circuit voltage to the ECM is greater than a calibrated threshold, or the delta pressure value is less than a calibrated threshold in comparison to the initial key-on value for a calibrated distance traveled.
Possible Causes
AFTERTREATMENT DIESEL PARTICULATE FILTER IS CRACKED OR BROKEN (K182)
EXHAUST PRESSURE SENSOR 1/2 SIGNAL CIRCUIT SHORTED TO GROUND
AFTERTREATMENT DIESEL PARTICULATE FILTER EXHAUST TUBES ARE BROKEN,
AFTERTREATMENT DIESEL PARTICULATE FILTER EXHAUST TUBES ARE REVERSED
EXHAUST SYSTEM LEAK
EXHAUST PRESSURE 1/2 SENSOR FAILED IN-RANGE

You might also check for a cracked/broken rubber hose at the sensor or plugs in the sensor to dpf tubing.
 
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