OBD Guide

P246B

Vehicle Conditions Incorrect for Particulate Filter Regeneration

P246B is an OBD-II diagnostic trouble code meaning: Vehicle Conditions Incorrect for Particulate Filter Regeneration. Common causes: frequent trips over short distances, low driving speed. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Check engine light on dashboard
  • Message about the need for DPF regeneration
  • Increased exhaust smoke

Causes

  • Frequent trips over short distances
  • Low driving speed
  • Malfunction of exhaust gas temperature sensors
  • Problems with the fuel injection system
  • DPF clogged

How to Fix

  1. Perform forced DPF regeneration at a service station
  2. Take a long drive at high speed (if possible)
  3. Check and replace exhaust gas temperature sensors if necessary
  4. Check the fuel injection system
  5. Clean or replace the particulate filter if it is severely clogged.

Related codes

Error P246B by Vehicle Brand

FAQ

What does the P246B code mean?

P246B is an OBD-II diagnostic trouble code that indicates: Vehicle Conditions Incorrect for Particulate Filter Regeneration

What causes a P246B error code?

The most common causes of P246B include: Frequent trips over short distances; Low driving speed; Malfunction of exhaust gas temperature sensors; Problems with the fuel injection system.

How do I fix a P246B diagnostic trouble code?

To fix P246B: Perform forced DPF regeneration at a service station. Take a long drive at high speed (if possible). Check and replace exhaust gas temperature sensors if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P246B?

Yes, but get it checked soon

How much does it cost to fix P246B?

The estimated repair cost for P246B is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat