DTC 16875

SAE VAG Description
P0491 16875 Secondary Air Injection System Insufficient Flow Bank 1

- Check Secondary Air Injection (AIR) system for proper seal. Secondary Air Injection (AIR) System, Checking For Proper Seal

- Check Secondary Air Injection (AIR) Solenoid Valve -N112-. Secondary Air Injection (AIR) Valve, Checking

- Check activation of Secondary Air Injection (AIR) Pump Relay -J299-. [1][2][3]Output Diagnostic Test Mode (DTM) (Function 03)