OBD Guide

P24AF

Particulate Matter Sensor Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Problems with diesel particulate filter regeneration
  • Unusual sensor readings in diagnostic equipment

Causes

  • Particulate filter sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Soot contamination of the sensor
  • Problems with the engine ECU

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect the connectors and contacts of the sensor
  3. Clean the sensor from dirt
  4. Check the sensor readings with a scanner
  5. Replace sensor if necessary

Related codes

Error P24AF by Vehicle Brand