P24B5

Particulate Matter Sensor Heater Control Circuit Low

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
Incorrect soot particle sensor readings

Causes

Open or short circuit in the sensor heating circuit
Particulate sensor malfunction
Problems with the wiring harness or connectors
Engine control module (ECU) malfunction
Corroded contacts or damaged wiring

How to Fix

Check the integrity of the sensor heating circuit
Check resistance and power supply of the sensor
Inspect the wiring harness and connectors for damage.
If necessary, replace the soot sensor
Check and, if necessary, update ECU software

Related codes

P24B6 P24B7 P24B8