P246D

Particulate Filter Pressure Sensor A/B Correlation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Problems with diesel particulate filter regeneration
In some cases - limiting engine speed

Causes

Pressure sensor A or B faulty
Diesel particulate filter clogged or damaged
Damaged or clogged pipelines to sensors
Problems with wiring or sensor connectors
Engine control unit malfunction

How to Fix

Diagnostics of pressure sensor readings
Checking the condition of the particulate filter
Inspection of piping and sensor connections
Checking electrical wiring and connectors
If necessary, replace a faulty sensor or particulate filter

Related codes

P246C P246E P2459