Code result
P2EAD
Reductant Metering Unit 2 Performance
High severity
What it means
The reductant metering unit 2 does not deliver the expected DEF/AdBlue dosing within the calibrated profile. Pump aging or pressure regulator drift.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Pump output degraded
highOne of the most commonly reported causes for this code — check this first.
Pressure regulator drifted
mediumA plausible cause — test and verify before replacing parts.
Related help
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