P24C9

Particulate Matter Sensor Temperature Circuit High

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

Check the integrity of the sensor wiring and connectors
Check the resistance of the temperature sensor
Check the voltage in the sensor circuit
Replace temperature sensor if necessary
Clean or replace damaged wires

Related codes

P24CA P24CB P24CC