P0447low severityPowertrain
Evaporative Emission System Vent Control Circuit Open
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
The PCM detected an open circuit in the EVAP vent control valve. This prevents proper sealing and venting of the fuel vapor system.
Symptoms
- Check engine light on
- Failed emissions test
- No noticeable driveability change
Common causes
- Faulty vent control valve
- Open or broken wiring
- Corroded connector
- Failed PCM driver circuit
Diagnostic steps
- Retrieve code and freeze frame
- Inspect vent valve wiring and connector
- Test vent valve resistance and operation
- Verify PCM control signal
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1