P2452 — DPF Pressure Sensor A Circuit
Seen on: Heavy Truck/Diesel
DPF Pressure Sensor A Circuit. Common causes: DPF differential pressure sensor failure.
Your code rides along, so nearby mechanics see the fault before they quote you.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- DPF differential pressure sensor failure
- Plugged sensor ports
- wiring fault
First moves (roadside)
- Inspect sensor hoses for blockage
- measure sensor voltage at idle
FAQ
DPF Pressure Sensor A Circuit. Common causes: DPF differential pressure sensor failure.
Caution — Limp to the next safe stop.
The most common cause is: DPF differential pressure sensor failure. Other possibilities include Plugged sensor ports; wiring fault.
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Find a mechanic or related guides
General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.