Fault Code P0419
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0419
Secondary Air Injection System Relay 'B' Circuit Malfunction
Code P0419 indicates a malfunction in the 'B' relay circuit of the Secondary Air Injection system. This system is crucial for reducing emissions, especially during cold starts.
Part Details
Part Name
Secondary Air Injection Relay
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪250 - ₪750
Engine Location
Engine compartment
Symptoms
- Check Engine Light on
- Emissions test failure
- Strong fuel smell, especially on cold start
- Abnormal noise from the system
Possible Causes
- 1Faulty SAI relay
- 2Short or open wiring in relay circuit
- 3Corrosion in connections
- 4ECM/PCM failure
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