DTC 45 - EGR Vent Error: Notes
When the PCM recognizes the operating range for no EGR, the PCM energizes the EGR vent solenoid which allows rapid venting of EGR vacuum. This solenoid is normally open. DTC 45 will set when no ignition voltage is present on the EGR vent control circuit when EGR vent is commanded on. PCM will default to shut off the EGR system.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- This step determines if DTC 45 is the result of a hard failure or an intermittent condition.
- This step checks if PCM and wiring are okay.
- This step checks the power and control circuit.