What are the common causes of P0410?

Failed secondary air injection pump. Blocked or leaking air injection check valve. Blown air pump fuse or relay. Open or shorted pump wiring. Cracked or disconnected air injection hoses.

Listen for the secondary air pump on cold start. Check the air pump fuse and relay. Inspect hoses and the check valve for leaks or blockage. Verify pump operation and pressure output. Replace the pump or valve and reconfirm cold-start operation.

P0410

Secondary Air Injection System Malfunction

System: Auxiliary emission controls (P code)
Lamp: Check Engine Light
Category: Powertrain - Auxiliary Emissions Controls

What it means

P0410 means Secondary Air Injection System Malfunction.

Check these first

Failed secondary air injection pump
Blocked or leaking air injection check valve
Blown air pump fuse or relay
Open or shorted pump wiring
Cracked or disconnected air injection hoses

What to do next

Listen for the secondary air pump on cold start
Check the air pump fuse and relay
Inspect hoses and the check valve for leaks or blockage
Verify pump operation and pressure output
Replace the pump or valve and reconfirm cold-start operation

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.