OBD Guide

P24B1

Particulate Matter Sensor Circuit High

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
  • Possible errors related to the DPF system

Causes

  • Particulate sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring Harness Problems
  • Engine ECU malfunction

How to Fix

  1. Check the integrity of the wiring to the sensor
  2. Check the connections and contacts of the sensor connector
  3. Measure the resistance and voltage of the sensor
  4. Check sensor operation using a diagnostic scanner
  5. If necessary, replace the soot sensor

Related codes

Error P24B1 by Vehicle Brand