What does code P0412 mean?

Secondary Air Injection System Switching Valve A Circuit: The secondary air switching valve circuit has an electrical fault.

P0412 is rated as medium severity. Schedule service — affects performance or emissions.

P0412

Secondary Air Injection System Switching Valve A Circuit

Powertrain Code · Medium

What does P0412 mean?

The secondary air switching valve circuit has an electrical fault.

System: Emission Controls

P0412 is a powertrain diagnostic trouble code indicating secondary air injection system switching valve a circuit. This code is classified as medium severity, which means: schedule service — affects performance or emissions.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.