Code result
P24FE
SCR Catalyst Incorrect
Moderate severity
What it means
The ECM identifies the installed SCR catalyst as the wrong part — NOx conversion efficiency, NH3 storage capacity or coded part-number do not match the expected application. Typical after fitting a non-OEM SCR brick or after a coding error following replacement.
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
Incorrect or non-OEM SCR catalyst installed
highOne of the most commonly reported causes for this code — check this first.
Coding mismatch after part replacement
mediumA plausible cause — test and verify before replacing parts.
Related help
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