Code result
P2AB0
Particulate Matter Sensor Processor Performance
Moderate severity
What it means
The ECM detects a processing performance fault inside the particulate matter (PM) sensor module. Internal self-tests fail or computed soot mass is implausible.
Is it safe to drive?
Use caution
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
Internal PM sensor module fault
highOne of the most commonly reported causes for this code — check this first.
Module firmware corruption after voltage drop
mediumA plausible cause — test and verify before replacing parts.
Module software outdated, reflash may resolve
lowLess common, but worth ruling out after the more likely causes.
Related help
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