OBD Guide

P243C

Particulate Filter Regeneration Frequency Bank 2

P243C is an OBD-II diagnostic trouble code meaning: Particulate Filter Regeneration Frequency Bank 2. Common causes: diesel particulate filter (dpf) clogged, malfunction of pressure sensors in the dpf system. Estimated repair cost: $56โ€“278.

Severity
๐Ÿ”ด High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56โ€“278 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Frequent DPF regeneration cycles
  • Check Engine Light Illuminated
  • Possible black smoke from the exhaust pipe

Causes

  • Diesel Particulate Filter (DPF) clogged
  • Malfunction of pressure sensors in the DPF system
  • Problems with the fuel system (injectors, injection pump)
  • Low fuel quality
  • Exhaust gas recirculation (EGR) system malfunction

How to Fix

  1. Check the condition of the particulate filter
  2. Diagnose DPF pressure sensors
  3. Check the fuel system for leaks or malfunctions
  4. Clean or replace the particulate filter if necessary
  5. Check the operation of the EGR system

Related codes

Error P243C by Vehicle Brand

FAQ

What does the P243C code mean?

P243C is an OBD-II diagnostic trouble code that indicates: Particulate Filter Regeneration Frequency Bank 2

What causes a P243C error code?

The most common causes of P243C include: Diesel Particulate Filter (DPF) clogged; Malfunction of pressure sensors in the DPF system; Problems with the fuel system (injectors, injection pump); Low fuel quality.

How do I fix a P243C diagnostic trouble code?

To fix P243C: Check the condition of the particulate filter. Diagnose DPF pressure sensors. Check the fuel system for leaks or malfunctions. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P243C?

Limited driving only, diagnose soon

How much does it cost to fix P243C?

The estimated repair cost for P243C is $56โ€“278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat