Code result
P05EB
Cold Start SCR NOx Catalyst Inlet Temperature Too Low
Moderate severity
What it means
Same as P22FF but specifically during the cold-start window - the SCR catalyst inlet temperature does not reach the threshold needed for NOx reduction in the cold-start phase, so reductant injection cannot be enabled.
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
Heat-up strategy not bringing exhaust to temp
highOne of the most commonly reported causes for this code — check this first.
Related help
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