OBD Guide

P24B1

Particulate Matter Sensor Circuit High

P24B1 is an OBD-II diagnostic trouble code meaning: Particulate Matter Sensor Circuit High. Common causes: particulate sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.

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

FAQ

What does the P24B1 code mean?

P24B1 is an OBD-II diagnostic trouble code that indicates: Particulate Matter Sensor Circuit High

What causes a P24B1 error code?

The most common causes of P24B1 include: Particulate sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring Harness Problems.

How do I fix a P24B1 diagnostic trouble code?

To fix P24B1: Check the integrity of the wiring to the sensor. Check the connections and contacts of the sensor connector. Measure the resistance and voltage of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24B1?

Yes, but get it checked soon

How much does it cost to fix P24B1?

The estimated repair cost for P24B1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat