Powertrain, generic (extended)

P2CEC Particulate Filter Pressure Sensor D Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2CEC is set when an analog filter pressure sensor D delivers less voltage than it can in normal service. In Ford's 2024–25 petrol summary, the only public source using sensor D, the limit is 0.3 V for 5 s, checked continuously alongside the A, B and C sensors of the gasoline particulate filters. Practically this means a signal shorted to ground, a 5 V supply that has dropped out, or an open signal line that the module pulls down. A shared reference fault would bring other sensor codes up together. GM does not use sensor D; its C sensor counterpart P2CE7 shows a similar ground-short logic on 2025 diesels. CARB requires out-of-range checks on such inputs. The pressure drop across that bank's filter is then unknown. Too high is P2CED, intermittent P2CEE.

Likely causes

Signal wire of sensor D shorted to ground
5 V reference to sensor D open or pulled down
Sensor D failed with output stuck low

Symptoms

  • Warning lamp on
  • Live data shows sensor D at minimum
  • Further 5 V sensor codes if the shared supply is affected

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–350
Time0.3–1.5 h

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

Parts involved

dpf pressure sensor dwiring harnessecm

Related codes

P2CEAP2CEBP2CEDP2CEEP2CE7P2460

References: fordservicecontent.com, law.cornell.edu, gsi.ext.gm.com.