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P0412 — Secondary Air Injection Switching Valve A Circuit

Secondary air injection switching valve circuit fault.

Severity: MediumRepair: $50-$400Difficulty: Medium

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Common symptoms of P0412

Common causes of P0412

Repair cost & difficulty

Typical cost to fix P0412: $50-$400 · Difficulty: Medium

Pro tip: Check relay and valve separately.

Vehicles commonly affected

BMW, VW/Audi, GM

Related trouble codes

P0410P0411P0413

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.