P0412 OBD II Trouble Code Secondary Air Injection System Switching Valve A Circuit Malfunction

Detailed information on troubleshooting and repairing a P0412 DTC code which has to do with the switching valve circuit in the secondary air injection system. Also includes links to relevant forum topics on the code.

Symptoms of P0412 OBD II Trouble Code

Common Causes of P0412 OBD II Trouble Code

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