P24B7

Particulate Matter Sensor Heater Resistance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Problems with diesel particulate filter regeneration
Increased fuel consumption
Possible errors in the exhaust gas purification system

Causes

Open or short circuit in the heater circuit
Particulate filter sensor malfunction
Problems with the relay or circuit fuse
Corrosion of contacts or connectors
Engine control unit malfunction

How to Fix

Check the integrity of the wiring to the sensor
Check fuses and heater relays
Measure the resistance of the sensor heater
Inspect connectors for corrosion
If necessary, replace the diesel particulate filter sensor

Related codes

P24B6 P24B8 P24B9