P2454

Particulate Filter Pressure Sensor A Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Problems with diesel particulate filter regeneration
Possible transition to emergency mode

Causes

DPF pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Problems with the engine control unit
Contaminated or damaged pressure tubes

How to Fix

Check the integrity of the wiring to the sensor
Inspect the sensor connectors for corrosion
Check the functionality of the pressure sensor
Clean or replace pressure tubes
Check sensor parameters with a scanner

Related codes

P2453 P2455 P2456