Code result
P2446
Secondary Air Injection Pump Stuck Off
Moderate severity
What it means
Bank 2 secondary air pump does not deliver air when commanded. The catalyst light-off process is delayed and cold-start emissions rise.
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
Pump seized from condensate corrosion
highOne of the most commonly reported causes for this code — check this first.
Relay failed open
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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