Check engine light came on showing the code:
PO4DB . Cant find it in the listings??

 

Copied from another user. The "o" is actually a zero:

The 6.7L diesel engine has a crankcase ventilation separator mounted on the driver side rocker cover, with a tube connecting the separator to the fresh air inlet of the turbocharger. The tube on the separator side has a tamper proof collar installed and is plastic welded to the separator. On the fresh air inlet side, a hall effect sensor is present, to detect connection to the inlet casting assembly. The tube cannot be disconnected on the separator side, and if it is disconnected from the inlet casting, a P04DB code is set, as sensor output drops below a calibrated threshold. There are also circuit range checks, P04E2 and P04E3 to detect shorts to ground, or short to battery/disconnected sensor, respectively.

Crankcase Ventilation Monitor
DTCs
P04DB – Crankcase Ventilation System Disconnected
P04E2 – Crankcase Ventilation Hose Connection Sensor Circuit Low
P04E3 – Crankcase Ventilation Hose Connection Sensor Circuit High

Monitor Execution
Once per driving cycle – P04DB
Continuous – P04E2, P04E3
Monitor Sequence None
Sensors OK P04DB - CVM (P04E2, P04E3)
Typical Monitoring Duration 2 sec

 

There is a FSA that extends the warranty for the CCV. Contact your dealer for repair.

Crankcase Ventilation Monitor
The 6.7L diesel engine has a crankcase ventilation separator mounted on the driver side rocker cover, with a
tube connecting the separator to the fresh air inlet of the turbocharger. The tube on the separator side has a
tamper proof collar installed and is plastic welded to the separator. On the fresh air inlet side, a hall effect sensor
is present, to detect connection to the inlet casting assembly. The tube cannot be disconnected on the separator
side, and if it is disconnected from the inlet casting, a P04DB code is set, as sensor output drops below a
calibrated threshold. There are also circuit range checks, P04E2 and P04E3 to detect shorts to ground, or short
to battery/disconnected sensor, respectively.

 

Thank you sir. I will talk to my dealer. The light has gone out but will call dealer anyway. Truck only has 35K miles on it.

 

Thanks I will check with my dealer for repair. Only 35K on truck.

 

Just had my 2015 serviced for this code, dealer had to replace the CCV unit since the sensor is part of the no removable hose.

 

How much did it cost to replace at the dealership?