P24FC
Particulate Matter Sensor Heater Control Circuit Driver Current/Temperature Too High
What it means
The PM (soot) sensor heater is driven by a current-limited stage so it can burn off accumulated soot before each measurement. The driver reports current or junction temperature above the safe limit and disables itself. Often a partial short across the heater or sensor element after coolant intrusion.
Is it safe to drive?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Partial short across the heater element
highOne of the most commonly reported causes for this code — check this first.
Driver overheating due to poor cooling on the module
mediumA plausible cause — test and verify before replacing parts.
Related help
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