Code result
P0414
Secondary Air Injection System Switching Valve A Circuit Shorted
Moderate severity
What it means
The ECU detected a short circuit in the secondary air injection switching valve A control circuit. With the valve unable to switch correctly, the cold-start emissions strategy fails and the catalyst takes longer to reach light-off.
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
Switching valve circuit shorted
highOne of the most commonly reported causes for this code — check this first.
Wiring or connector fault
mediumA plausible cause — test and verify before replacing parts.
Related help
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