OBD Guide

P24B6

Particulate Matter Sensor Heater Control Circuit High

P24B6 is an OBD-II diagnostic trouble code meaning: Particulate Matter Sensor Heater Control Circuit High. Common causes: open or short circuit in the sensor heater circuit, soot particle sensor malfunction. Estimated repair cost: $56–189.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–189 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Deteriorating fuel economy
  • Incorrect operation of the emission control system

Causes

  • Open or short circuit in the sensor heater circuit
  • Soot particle sensor malfunction
  • Problems with the wiring harness or connectors
  • Engine control module malfunction
  • Corroded contacts or damaged wiring

How to Fix

  1. Check the continuity of the sensor heater circuit
  2. Check the resistance of the heating element
  3. Inspect connectors and wiring for damage
  4. If necessary, replace the soot particle sensor
  5. Check the voltage supply from the ECU

Related codes

Error P24B6 by Vehicle Brand

FAQ

What does the P24B6 code mean?

P24B6 is an OBD-II diagnostic trouble code that indicates: Particulate Matter Sensor Heater Control Circuit High

What causes a P24B6 error code?

The most common causes of P24B6 include: Open or short circuit in the sensor heater circuit; Soot particle sensor malfunction; Problems with the wiring harness or connectors; Engine control module malfunction.

How do I fix a P24B6 diagnostic trouble code?

To fix P24B6: Check the continuity of the sensor heater circuit. Check the resistance of the heating element. Inspect connectors and wiring for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24B6?

Yes, but get it checked soon

How much does it cost to fix P24B6?

The estimated repair cost for P24B6 is $56–189. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat