{"id":77282,"date":"2022-11-03T00:10:14","date_gmt":"2022-11-03T07:10:14","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=77282"},"modified":"2024-08-16T05:27:56","modified_gmt":"2024-08-16T12:27:56","slug":"p0414-code-secondary-air-injection-system-switching-valve-a-circuit-shorted","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0414-code-secondary-air-injection-system-switching-valve-a-circuit-shorted\/","title":{"rendered":"P0414 Code: Secondary Air Injection System Switching Valve \u201cA\u201d Circuit Shorted"},"content":{"rendered":"\nReading Time: <\/span> 3<\/span> minutes<\/span><\/span>\n\n\n

The secondary air injection (SAI) system supplies ambient air to the exhaust manifold<\/a> or catalytic converter<\/a> to burn up exhaust emissions during engine warm-up. Airflow in the SAI system is routed through solenoids, check valves, and switching valves, which are operated by the powertrain control module<\/a> (PCM). If the PCM detects an issue with the switching valve, on-board diagnostics will log a P0414 code.<\/p>\n\n\n\n

What Does the P0414 Code Mean?<\/h2>\n\n\n\n

Diagnostic trouble code<\/a> (DTC) P0414 stands for “Secondary Air Injection System Switching Valve ‘A’ Circuit Shorted.”<\/p>\n\n\n\n

The SAI system has a pump<\/a> that distributes air to a nozzle in each exhaust port in the cylinder head, which provides equal air injection for the exhaust for each cylinder.<\/p>\n\n\n\n

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The SAI system has a pump that distributes air to a nozzle in each exhaust port in the cylinder head, which provides equal air injection for the exhaust for each cylinder.<\/figcaption><\/figure>\n\n\n\n

During cold engine start-up, the air is routed to the exhaust manifolds via the check valves, preventing exhaust emissions from infiltrating the switching solenoids and air pump. Once the engine achieves a closed loop, the air is then directed to the catalytic converter.<\/p>\n\n\n\n

Valves in the SAI system, including the switching valve, are essential in preventing exhaust emissions from destroying the air pump. A problem with the switching valve can trigger a P0414 code.<\/p>\n\n\n\n

Note:<\/em><\/strong> The definition of code P0414 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition<\/em>.<\/p>\n\n\n\n

What are the Common Causes of the P0414 Code?<\/h2>\n\n\n\n