Possible Causes
- The powertrain control module has determined an open circuit through lack of bias voltage, low current flow, no change in the state of an input in response to an output
- EGR valve circuit open circuit, high resistance
- Exhaust gas recirculation valve - High pressure
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- EGR valve failure
- Exhaust gas recirculation valve - High pressure