P04DB Fault Code

P04DB Crankcase Ventilation: Disconnected Pipe/Separator Monitor

Component / System

Crankcase Ventilation - Disconnect

Monitor Strategy Description

Disconnected ventilation hose or faulty separator unit.

Fault Limit

Delta = (Delta Pressure High) - (Delta Presure Low); (Absolute Value) < 0.15 kPa

Enable Conditions

High Speed Conditions
Oil Temperature > 30 °C
Engine Run Time > 700s
Oil Pressure 375 - 800 kPa
Engine Torque > 95 Nm
Ambient Air Temperature -8 - 55 °C
Barometric Pressure 75 - 105 kPa
Coolant Temperature > 65 °CLow Speed Conditions
Oil Temperature > 30 °C
Engine Run Time > 700s
Oil Pressure 100 - 280 kPa
Engine Torque < 380 Nm
Ambient Air Temperature -8 - 55 °C
Barometric Pressure 75 - 105 kPa
Coolant Temperature > 65 °C

Disable Conditions

No Active DTC's:
P01BB, P01B9, P0112, P2229, P051A, P051C, P051D, P051B, P0523, P0520

Time Required For P04DB DTC To Be Set

18 seconds

MIL Illumination

2 Drive Cycles

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Don't forget ! When a fault code pops up, Volvo's Uptime Center is automatically notified via an cellular link, and it alerts the truck's owner by prearranged methods, usually email or phone calls.