P2452 OBD II Trouble Code Diesel Particulate Filter Pressure Sensor A Circuit

Symptoms of P2452 OBD II Trouble Code

  • Excessive black smoke from the exhaust
  • Diminished engine performance
  • Higher engine temperatures
  • Higher transmission temperatures

Common Causes of P2452 OBD II Trouble Code

  • The diesel exhaust fluid reservoir is empty
  • Incorrect diesel exhaust fluid
  • Defective DPF pressure sensor
  • Clogged DPF pressure sensor tubes/hoses
  • Open or shorted circuit/s in the DPF pressure sensor A circuit
  • Inefficient DPF regeneration
  • Inoperative active DPF regeneration system

Severity of P2452 OBD II Trouble Code

The conditions for causing this code to be stored could lead to internal engine or fuel system damage and should be addressed immediately. Symptoms of a P2452 code may include: