Powertrain, generic (extended)

P2145 EGR Vent Control Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2145 is the high fault in the vent solenoid circuit of the EGR system: the control line shows supply voltage while the module tries to pull it to ground, or the driver detects overcurrent through a shorted coil. The output then cannot switch the solenoid on, so the vent stays in its rest state – depending on design the EGR valve either cannot be released quickly or cannot be held, and the module normally stops using EGR. Ford's 2014 spark-ignition code list names P2145 alongside P2144, both with the warning lamp and a continuous test; thresholds are not given and no further manufacturer document is public. For the vent concept itself see Ford's separate vent and control outputs and Kia's duty-mapped vent solenoid. Open circuit is P2143, low fault P2144.

Likely causes

Control wire shorted to battery voltage
Shorted vent solenoid coil drawing excess current
Faulty output stage in the engine control module

Symptoms

  • Check engine lamp on
  • EGR inactive, sometimes pinging under load on petrol engines
  • EGR readiness not completed

Repair estimate

DifficultyEasyDIY possible
Parts and labour€30–250
Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

egr vent solenoid

Related codes

P2143P2144P0403P0401

References: law.cornell.edu, performanceparts.ford.com, patents.google.com, patents.google.com.