Drive with caution — fix soon.
This code means the engine computer detected an electrical problem in the control circuit for the secondary air injection switching valve 'A', the valve that directs fresh air into the exhaust at startup. It usually points to a faulty switching valve, a wiring or connector issue, or a problem with the control relay. It's a fairly common code and is typically fixable without major engine work.
$150 – $600
Varies by vehicle and root cause.
Usually yes, since this valve mostly affects cold-start emissions rather than normal driving. The car stays safe to drive, but it will likely fail an emissions test, so plan to have the circuit and valve checked.
Most repairs land between about $150 and $600. A wiring or relay fix is on the lower end, while replacing the secondary air switching valve costs more.
It's not a safety emergency and rarely strands you, but it means part of your emissions system isn't working. It should be repaired so the car passes emissions and runs cleaner on cold starts.
It means the computer saw an electrical fault in the control circuit for the air switching valve 'A', usually a wiring, connector, relay, or valve problem rather than damage to the engine itself.