OBD Guide

P24C9

Particulate Matter Sensor Temperature Circuit High

P24C9 is an OBD-II diagnostic trouble code meaning: Particulate Matter Sensor Temperature Circuit High. Common causes: short circuit in the sensor circuit, particulate filter temperature sensor malfunction. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Problems with diesel particulate filter regeneration

Causes

  • Short circuit in the sensor circuit
  • Particulate filter temperature sensor malfunction
  • Damage to wiring or connectors
  • Problems with the ECU
  • Corrosion of electrical contacts

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Check the resistance of the temperature sensor
  3. Check the voltage in the sensor circuit
  4. Replace temperature sensor if necessary
  5. Clean or replace damaged wires

Related codes

Error P24C9 by Vehicle Brand

FAQ

What does the P24C9 code mean?

P24C9 is an OBD-II diagnostic trouble code that indicates: Particulate Matter Sensor Temperature Circuit High

What causes a P24C9 error code?

The most common causes of P24C9 include: Short circuit in the sensor circuit; Particulate filter temperature sensor malfunction; Damage to wiring or connectors; Problems with the ECU.

How do I fix a P24C9 diagnostic trouble code?

To fix P24C9: Check the integrity of the sensor wiring and connectors. Check the resistance of the temperature sensor. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24C9?

Yes, but get it checked soon

How much does it cost to fix P24C9?

The estimated repair cost for P24C9 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat