P2459

Particulate Filter Regeneration Frequency Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$167–556 (est.)

Symptoms

Increased fuel consumption
Reduced engine power
Check Engine light comes on
Frequent regeneration cycles
Noticeable burning smell

Causes

DPF clogged
Differential pressure sensor malfunction
Problems with the fuel system
Engine management system malfunction
Low exhaust gas temperature

How to Fix

Check the condition of the particulate filter
Diagnose pressure and temperature sensors
Check the fuel system and injectors
Update ECU firmware (if required)
If necessary, replace the particulate filter

Related codes

P2463 P2458 P2460